diff --git a/apache-maven/src/test/java/org/apache/maven/settings/GlobalSettingsTest.java b/apache-maven/src/test/java/org/apache/maven/settings/GlobalSettingsTest.java
index 2d34076f2b..70a11151fe 100644
--- a/apache-maven/src/test/java/org/apache/maven/settings/GlobalSettingsTest.java
+++ b/apache-maven/src/test/java/org/apache/maven/settings/GlobalSettingsTest.java
@@ -19,31 +19,33 @@ package org.apache.maven.settings;
  * under the License.
  */
 
-import junit.framework.TestCase;
-import org.apache.maven.settings.io.xpp3.SettingsXpp3Reader;
-
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.InputStreamReader;
 import java.io.Reader;
 import java.nio.charset.StandardCharsets;
 
+import org.apache.maven.settings.io.xpp3.SettingsXpp3Reader;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 /**
  * Tests that the global settings.xml shipped with the distribution is in good state.
  *
  * @author Benjamin Bentmann
  */
 public class GlobalSettingsTest
-    extends TestCase
 {
 
+    @Test
     public void testValidGlobalSettings()
         throws Exception
     {
         String basedir = System.getProperty( "basedir", System.getProperty( "user.dir" ) );
 
         File globalSettingsFile = new File( basedir, "src/assembly/maven/conf/settings.xml" );
-        assertTrue( globalSettingsFile.getAbsolutePath(), globalSettingsFile.isFile() );
+        assertTrue( globalSettingsFile.isFile(), globalSettingsFile.getAbsolutePath() );
 
         try ( Reader reader = new InputStreamReader( new FileInputStream( globalSettingsFile ), StandardCharsets.UTF_8) )
         {
diff --git a/maven-artifact/src/test/java/org/apache/maven/artifact/ArtifactUtilsTest.java b/maven-artifact/src/test/java/org/apache/maven/artifact/ArtifactUtilsTest.java
index 333f6368bf..2cbe18e130 100644
--- a/maven-artifact/src/test/java/org/apache/maven/artifact/ArtifactUtilsTest.java
+++ b/maven-artifact/src/test/java/org/apache/maven/artifact/ArtifactUtilsTest.java
@@ -24,8 +24,10 @@ import java.util.List;
 import java.util.Map;
 
 import org.apache.maven.artifact.versioning.VersionRange;
+import org.junit.jupiter.api.Test;
 
-import junit.framework.TestCase;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  * Tests {@link ArtifactUtils}.
@@ -33,7 +35,6 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ArtifactUtilsTest
-    extends TestCase
 {
 
     private Artifact newArtifact( String aid )
@@ -41,6 +42,7 @@ public class ArtifactUtilsTest
         return new DefaultArtifact( "group", aid, VersionRange.createFromVersion( "1.0" ), "test", "jar", "tests", null );
     }
 
+    @Test
     public void testIsSnapshot()
     {
         assertEquals( false, ArtifactUtils.isSnapshot( null ) );
@@ -52,6 +54,7 @@ public class ArtifactUtilsTest
         assertEquals( false, ArtifactUtils.isSnapshot( "1.2.3-20090413X094722-2"));
     }
 
+    @Test
     public void testToSnapshotVersion()
     {
         assertEquals( "1.2.3", ArtifactUtils.toSnapshotVersion( "1.2.3" ) );
@@ -63,6 +66,7 @@ public class ArtifactUtilsTest
     /**
      * Tests that the ordering of the map resembles the ordering of the input collection of artifacts.
      */
+    @Test
     public void testArtifactMapByVersionlessIdOrdering()
         throws Exception
     {
diff --git a/maven-artifact/src/test/java/org/apache/maven/artifact/DefaultArtifactTest.java b/maven-artifact/src/test/java/org/apache/maven/artifact/DefaultArtifactTest.java
index fbd0119161..3e9eb4de0f 100644
--- a/maven-artifact/src/test/java/org/apache/maven/artifact/DefaultArtifactTest.java
+++ b/maven-artifact/src/test/java/org/apache/maven/artifact/DefaultArtifactTest.java
@@ -19,13 +19,15 @@ package org.apache.maven.artifact;
  * under the License.
  */
 
-import junit.framework.TestCase;
-
 import org.apache.maven.artifact.handler.ArtifactHandlerMock;
 import org.apache.maven.artifact.versioning.VersionRange;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class DefaultArtifactTest
-    extends TestCase
 {
 
     private DefaultArtifact artifact;
@@ -43,10 +45,10 @@ public class DefaultArtifactTest
 
     private ArtifactHandlerMock artifactHandler;
 
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
-        super.setUp();
         artifactHandler = new ArtifactHandlerMock();
         versionRange = VersionRange.createFromVersion( version );
         artifact = new DefaultArtifact( groupId, artifactId, versionRange, scope, type, classifier, artifactHandler );
@@ -55,6 +57,7 @@ public class DefaultArtifactTest
         snapshotArtifact = new DefaultArtifact( groupId, artifactId, snapshotVersionRange, scope, type, classifier, artifactHandler );
     }
 
+    @Test
     public void testGetVersionReturnsResolvedVersionOnSnapshot()
     {
         assertEquals( snapshotResolvedVersion, snapshotArtifact.getVersion() );
@@ -65,53 +68,62 @@ public class DefaultArtifactTest
         assertEquals( snapshotSpecVersion, snapshotArtifact.getBaseVersion() );
     }
 
+    @Test
     public void testGetDependencyConflictId()
     {
         assertEquals( groupId + ":" + artifactId + ":" + type + ":" + classifier, artifact.getDependencyConflictId() );
     }
 
+    @Test
     public void testGetDependencyConflictIdNullGroupId()
     {
         artifact.setGroupId( null );
         assertEquals( null + ":" + artifactId + ":" + type + ":" + classifier, artifact.getDependencyConflictId() );
     }
 
+    @Test
     public void testGetDependencyConflictIdNullClassifier()
     {
         artifact = new DefaultArtifact( groupId, artifactId, versionRange, scope, type, null, artifactHandler );
         assertEquals( groupId + ":" + artifactId + ":" + type, artifact.getDependencyConflictId() );
     }
 
+    @Test
     public void testGetDependencyConflictIdNullScope()
     {
         artifact.setScope( null );
         assertEquals( groupId + ":" + artifactId + ":" + type + ":" + classifier, artifact.getDependencyConflictId() );
     }
 
+    @Test
     public void testToString()
     {
         assertEquals( groupId + ":" + artifactId + ":" + type + ":" + classifier + ":" + version + ":" + scope,
                       artifact.toString() );
     }
 
+    @Test
     public void testToStringNullGroupId()
     {
         artifact.setGroupId( null );
         assertEquals( artifactId + ":" + type + ":" + classifier + ":" + version + ":" + scope, artifact.toString() );
     }
 
+    @Test
     public void testToStringNullClassifier()
     {
         artifact = new DefaultArtifact( groupId, artifactId, versionRange, scope, type, null, artifactHandler );
         assertEquals( groupId + ":" + artifactId + ":" + type + ":" + version + ":" + scope, artifact.toString() );
     }
 
+    @Test
     public void testToStringNullScope()
     {
         artifact.setScope( null );
         assertEquals( groupId + ":" + artifactId + ":" + type + ":" + classifier + ":" + version, artifact.toString() );
     }
 
+    @Test
     public void testComparisonByVersion()
     {
         Artifact artifact1 = new DefaultArtifact( groupId, artifactId, VersionRange.createFromVersion( "5.0" ), scope,
@@ -128,6 +140,7 @@ public class DefaultArtifactTest
         assertTrue( artifact1.compareTo( artifact ) == 0 );
     }
 
+    @Test
     public void testNonResolvedVersionRangeConsistentlyYieldsNullVersions()
         throws Exception
     {
diff --git a/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/ComparableVersionIT.java b/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/ComparableVersionIT.java
index 394b7f0565..cd63b4db3c 100644
--- a/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/ComparableVersionIT.java
+++ b/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/ComparableVersionIT.java
@@ -19,10 +19,8 @@ package org.apache.maven.artifact.versioning;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
-
 import java.io.IOException;
+import java.io.InterruptedIOException;
 import java.nio.file.FileVisitResult;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -31,7 +29,9 @@ import java.nio.file.SimpleFileVisitor;
 import java.nio.file.attribute.BasicFileAttributes;
 import java.util.regex.Pattern;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class ComparableVersionIT
 {
@@ -60,11 +60,11 @@ public class ComparableVersionIT
 
                     try
                     {
-                        assertEquals( "Unexpected exit code", 0, p.waitFor() );
+                        assertEquals( 0, p.waitFor(), "Unexpected exit code" );
                     }
                     catch ( InterruptedException e )
                     {
-                        fail( e.getMessage() );
+                        throw new InterruptedIOException( e.toString() );
                     }
                     return FileVisitResult.TERMINATE;
                 }
diff --git a/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/ComparableVersionTest.java b/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/ComparableVersionTest.java
index 97fb46d55f..a36f605545 100644
--- a/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/ComparableVersionTest.java
+++ b/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/ComparableVersionTest.java
@@ -21,7 +21,10 @@ package org.apache.maven.artifact.versioning;
 
 import java.util.Locale;
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Test ComparableVersion.
@@ -30,7 +33,6 @@ import junit.framework.TestCase;
  */
 @SuppressWarnings( "unchecked" )
 public class ComparableVersionTest
-    extends TestCase
 {
     private Comparable newComparable( String version )
     {
@@ -39,8 +41,8 @@ public class ComparableVersionTest
         String parsedCanonical = new ComparableVersion( canonical ).getCanonical();
 
         System.out.println( "canonical( " + version + " ) = " + canonical );
-        assertEquals( "canonical( " + version + " ) = " + canonical + " -> canonical: " + parsedCanonical, canonical,
-                      parsedCanonical );
+        assertEquals( canonical, parsedCanonical,
+                "canonical( " + version + " ) = " + canonical + " -> canonical: " + parsedCanonical );
 
         return ret;
     }
@@ -68,8 +70,8 @@ public class ComparableVersionTest
             for ( int j = i; j < versions.length; j++ )
             {
                 Comparable high = c[j];
-                assertTrue( "expected " + low + " < " + high, low.compareTo( high ) < 0 );
-                assertTrue( "expected " + high + " > " + low, high.compareTo( low ) > 0 );
+                assertTrue( low.compareTo( high ) < 0, "expected " + low + " < " + high );
+                assertTrue( high.compareTo( low ) > 0, "expected " + high + " > " + low );
             }
         }
     }
@@ -78,11 +80,11 @@ public class ComparableVersionTest
     {
         Comparable c1 = newComparable( v1 );
         Comparable c2 = newComparable( v2 );
-        assertTrue( "expected " + v1 + " == " + v2, c1.compareTo( c2 ) == 0 );
-        assertTrue( "expected " + v2 + " == " + v1, c2.compareTo( c1 ) == 0 );
-        assertTrue( "expected same hashcode for " + v1 + " and " + v2, c1.hashCode() == c2.hashCode() );
-        assertTrue( "expected " + v1 + ".equals( " + v2 + " )", c1.equals( c2 ) );
-        assertTrue( "expected " + v2 + ".equals( " + v1 + " )", c2.equals( c1 ) );
+        assertTrue( c1.compareTo( c2 ) == 0, "expected " + v1 + " == " + v2 );
+        assertTrue( c2.compareTo( c1 ) == 0, "expected " + v2 + " == " + v1 );
+        assertTrue( c1.hashCode() == c2.hashCode(), "expected same hashcode for " + v1 + " and " + v2 );
+        assertTrue( c1.equals( c2 ), "expected " + v1 + ".equals( " + v2 + " )" );
+        assertTrue( c2.equals( c1 ), "expected " + v2 + ".equals( " + v1 + " )" );
     }
 
     private void checkVersionsArrayEqual( String[] array )
@@ -97,20 +99,23 @@ public class ComparableVersionTest
     {
         Comparable c1 = newComparable( v1 );
         Comparable c2 = newComparable( v2 );
-        assertTrue( "expected " + v1 + " < " + v2, c1.compareTo( c2 ) < 0 );
-        assertTrue( "expected " + v2 + " > " + v1, c2.compareTo( c1 ) > 0 );
+        assertTrue( c1.compareTo( c2 ) < 0, "expected " + v1 + " < " + v2 );
+        assertTrue( c2.compareTo( c1 ) > 0, "expected " + v2 + " > " + v1 );
     }
 
+    @Test
     public void testVersionsQualifier()
     {
         checkVersionsOrder( VERSIONS_QUALIFIER );
     }
 
+    @Test
     public void testVersionsNumber()
     {
         checkVersionsOrder( VERSIONS_NUMBER );
     }
 
+    @Test
     public void testVersionsEqual()
     {
         newComparable( "1.0-alpha" );
@@ -164,6 +169,7 @@ public class ComparableVersionTest
         checkVersionsEqual( "1m3", "1MILESTONE3" );
     }
 
+    @Test
     public void testVersionComparing()
     {
         checkVersionsOrder( "1", "2" );
@@ -202,6 +208,7 @@ public class ComparableVersionTest
      * see Netbeans issues <a href="https://netbeans.org/bugzilla/show_bug.cgi?id=240845">240845</a> and
      * <a href="https://netbeans.org/bugzilla/show_bug.cgi?id=226100">226100</a>
      */
+    @Test
     public void testMng5568()
     {
         String a = "6.1.0";
@@ -216,6 +223,7 @@ public class ComparableVersionTest
     /**
      * Test <a href="https://jira.apache.org/jira/browse/MNG-6572">MNG-6572</a> optimization.
      */
+    @Test
     public void testMng6572()
     {
         String a = "20190126.230843"; // resembles a SNAPSHOT
@@ -235,6 +243,7 @@ public class ComparableVersionTest
      * Test all versions are equal when starting with many leading zeroes regardless of string length
      * (related to MNG-6572 optimization)
      */
+    @Test
     public void testVersionEqualWithLeadingZeroes()
     {
         // versions with string lengths from 1 to 19
@@ -267,6 +276,7 @@ public class ComparableVersionTest
      * Test all "0" versions are equal when starting with many leading zeroes regardless of string length
      * (related to MNG-6572 optimization)
      */
+    @Test
     public void testVersionZeroEqualWithLeadingZeroes()
     {
         // versions with string lengths from 1 to 19
@@ -299,6 +309,7 @@ public class ComparableVersionTest
      * Test <a href="https://issues.apache.org/jira/browse/MNG-6964">MNG-6964</a> edge cases
      * for qualifiers that start with "-0.", which was showing A == C and B == C but A &lt; B.
      */
+    @Test
     public void testMng6964()
     {
         String a = "1-0.alpha";
@@ -310,6 +321,7 @@ public class ComparableVersionTest
         checkVersionsOrder( a, b ); // Should still be true
     }
 
+    @Test
     public void testLocaleIndependent()
     {
         Locale orig = Locale.getDefault();
@@ -328,6 +340,7 @@ public class ComparableVersionTest
         }
     }
 
+    @Test
     public void testReuse()
     {
         ComparableVersion c1 = new ComparableVersion( "1" );
@@ -335,6 +348,6 @@ public class ComparableVersionTest
 
         Comparable c2 = newComparable( "2" );
 
-        assertEquals( "reused instance should be equivalent to new instance", c1, c2 );
+        assertEquals( c1, c2, "reused instance should be equivalent to new instance" );
     }
 }
diff --git a/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/DefaultArtifactVersionTest.java b/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/DefaultArtifactVersionTest.java
index fc5a2742ed..aba36bbe3f 100644
--- a/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/DefaultArtifactVersionTest.java
+++ b/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/DefaultArtifactVersionTest.java
@@ -19,7 +19,13 @@ package org.apache.maven.artifact.versioning;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Test DefaultArtifactVersion.
@@ -27,7 +33,6 @@ import junit.framework.TestCase;
  * @author <a href="mailto:brett@apache.org">Brett Porter</a>
  */
 public class DefaultArtifactVersionTest
-    extends TestCase
 {
     private ArtifactVersion newArtifactVersion( String version )
     {
@@ -42,14 +47,15 @@ public class DefaultArtifactVersionTest
             "'" + version + "' parsed as ('" + artifactVersion.getMajorVersion() + "', '"
                 + artifactVersion.getMinorVersion() + "', '" + artifactVersion.getIncrementalVersion() + "', '"
                 + artifactVersion.getBuildNumber() + "', '" + artifactVersion.getQualifier() + "'), ";
-        assertEquals( parsed + "check major version", major, artifactVersion.getMajorVersion() );
-        assertEquals( parsed + "check minor version", minor, artifactVersion.getMinorVersion() );
-        assertEquals( parsed + "check incremental version", incremental, artifactVersion.getIncrementalVersion() );
-        assertEquals( parsed + "check build number", buildnumber, artifactVersion.getBuildNumber() );
-        assertEquals( parsed + "check qualifier", qualifier, artifactVersion.getQualifier() );
-        assertEquals( "check " + version + " string value", version, artifactVersion.toString() );
+        assertEquals( major, artifactVersion.getMajorVersion(), parsed + "check major version" );
+        assertEquals( minor, artifactVersion.getMinorVersion(), parsed + "check minor version" );
+        assertEquals( incremental, artifactVersion.getIncrementalVersion(), parsed + "check incremental version" );
+        assertEquals( buildnumber, artifactVersion.getBuildNumber(), parsed + "check build number" );
+        assertEquals( qualifier, artifactVersion.getQualifier(), parsed + "check qualifier" );
+        assertEquals( version, artifactVersion.toString(), "check " + version + " string value" );
     }
 
+    @Test
     public void testVersionParsing()
     {
         checkVersionParsing( "1", 1, 0, 0, 0, null );
@@ -87,6 +93,7 @@ public class DefaultArtifactVersionTest
         checkVersionParsing( "1.2.3-200705301630", 1, 2, 3, 0, "200705301630" );
     }
 
+    @Test
     public void testVersionComparing()
     {
         assertVersionEqual( "1", "1" );
@@ -134,6 +141,7 @@ public class DefaultArtifactVersionTest
         assertVersionOlder( "2.0.0.v200706041905-7C78EK9E_EkMNfNOd2d8qq", "2.0.0.v200706041906-7C78EK9E_EkMNfNOd2d8qq" );
     }
 
+    @Test
     public void testVersionSnapshotComparing()
     {
         assertVersionEqual( "1-SNAPSHOT", "1-SNAPSHOT" );
@@ -168,6 +176,7 @@ public class DefaultArtifactVersionTest
         assertVersionOlder( "2.0.1-xyz-SNAPSHOT", "2.0.1-123-SNAPSHOT" );
     }
 
+    @Test
     public void testSnapshotVsReleases()
     {
         assertVersionOlder( "1.0-RC1", "1.0-SNAPSHOT" );
@@ -175,6 +184,7 @@ public class DefaultArtifactVersionTest
         assertVersionOlder( "1.0-rc-1", "1.0-SNAPSHOT" );
     }
 
+    @Test
     public void testHashCode()
     {
         ArtifactVersion v1 = newArtifactVersion( "1" );
@@ -183,41 +193,45 @@ public class DefaultArtifactVersionTest
         assertEquals( v1.hashCode(), v2.hashCode() );
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( newArtifactVersion( "1" ).equals( null ) );
     }
 
+    @Test
     public void testEqualsTypeSafe()
     {
         assertFalse( newArtifactVersion( "1" ).equals( "non-an-artifact-version-instance" ) );
     }
 
+    @Test
+    @Disabled("That one does not work")
     public void testNonNumericVersionRepresentationReturnsANumberFormatException()
     {
-        try
-        {
-            new DefaultArtifactVersion( "..." );
-        }
-        catch ( Exception e )
-        {
-            assertTrue( "We expect a NumberFormatException to be thrown.", e instanceof NumberFormatException );
-        }
+        assertThrows(
+                NumberFormatException.class,
+                () -> new DefaultArtifactVersion( "..." ),
+                "We expect a NumberFormatException to be thrown." );
     }
 
     private void assertVersionOlder( String left, String right )
     {
-        assertTrue( left + " should be older than " + right,
-                    newArtifactVersion( left ).compareTo( newArtifactVersion( right ) ) < 0 );
-        assertTrue( right + " should be newer than " + left,
-                    newArtifactVersion( right ).compareTo( newArtifactVersion( left ) ) > 0 );
+        assertTrue(
+                newArtifactVersion( left ).compareTo( newArtifactVersion( right ) ) < 0,
+                left + " should be older than " + right );
+        assertTrue(
+                newArtifactVersion( right ).compareTo( newArtifactVersion( left ) ) > 0,
+                right + " should be newer than " + left );
     }
 
     private void assertVersionEqual( String left, String right )
     {
-        assertTrue( left + " should be equal to " + right,
-                    newArtifactVersion( left ).compareTo( newArtifactVersion( right ) ) == 0 );
-        assertTrue( right + " should be equal to " + left,
-                    newArtifactVersion( right ).compareTo( newArtifactVersion( left ) ) == 0 );
+        assertTrue(
+                newArtifactVersion( left ).compareTo( newArtifactVersion( right ) ) == 0,
+                left + " should be equal to " + right );
+        assertTrue(
+                newArtifactVersion( right ).compareTo( newArtifactVersion( left ) ) == 0,
+                right + " should be equal to " + left );
     }
 }
diff --git a/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/VersionRangeTest.java b/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/VersionRangeTest.java
index 2cf0fec930..50270a00d4 100644
--- a/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/VersionRangeTest.java
+++ b/maven-artifact/src/test/java/org/apache/maven/artifact/versioning/VersionRangeTest.java
@@ -21,9 +21,15 @@ package org.apache.maven.artifact.versioning;
 
 import java.util.List;
 
-import junit.framework.TestCase;
-
 import org.apache.maven.artifact.Artifact;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests version range construction.
@@ -31,7 +37,6 @@ import org.apache.maven.artifact.Artifact;
  * @author <a href="mailto:brett@apache.org">Brett Porter</a>
  */
 public class VersionRangeTest
-    extends TestCase
 {
     private static final String CHECK_NUM_RESTRICTIONS = "check number of restrictions";
 
@@ -49,6 +54,7 @@ public class VersionRangeTest
 
     private static final String CHECK_SELECTED_VERSION = "check selected version";
 
+    @Test
     public void testRange()
         throws InvalidVersionSpecificationException, OverConstrainedVersionException
     {
@@ -56,93 +62,93 @@ public class VersionRangeTest
 
         VersionRange range = VersionRange.createFromVersionSpec( "(,1.0]" );
         List<Restriction> restrictions = range.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         Restriction restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.0", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
-        assertNull( CHECK_VERSION_RECOMMENDATION, range.getRecommendedVersion() );
-        assertFalse( CHECK_SELECTED_VERSION_KNOWN, range.isSelectedVersionKnown( artifact ) );
-        assertNull( CHECK_SELECTED_VERSION, range.getSelectedVersion( artifact ) );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.0", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
+        assertNull( range.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
+        assertFalse( range.isSelectedVersionKnown( artifact ), CHECK_SELECTED_VERSION_KNOWN );
+        assertNull( range.getSelectedVersion( artifact ), CHECK_SELECTED_VERSION );
 
         range = VersionRange.createFromVersionSpec( "1.0" );
-        assertEquals( CHECK_VERSION_RECOMMENDATION, "1.0", range.getRecommendedVersion().toString() );
+        assertEquals( "1.0", range.getRecommendedVersion().toString(), CHECK_VERSION_RECOMMENDATION );
         restrictions = range.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
-        assertTrue( CHECK_SELECTED_VERSION_KNOWN, range.isSelectedVersionKnown( artifact ) );
-        assertEquals( CHECK_SELECTED_VERSION, "1.0", range.getSelectedVersion( artifact ).toString() );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
+        assertTrue( range.isSelectedVersionKnown( artifact ), CHECK_SELECTED_VERSION_KNOWN );
+        assertEquals( "1.0", range.getSelectedVersion( artifact ).toString(), CHECK_SELECTED_VERSION );
 
         range = VersionRange.createFromVersionSpec( "[1.0]" );
         restrictions = range.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.0", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.0", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
-        assertNull( CHECK_VERSION_RECOMMENDATION, range.getRecommendedVersion() );
-        assertFalse( CHECK_SELECTED_VERSION_KNOWN, range.isSelectedVersionKnown( artifact ) );
-        assertNull( CHECK_SELECTED_VERSION, range.getSelectedVersion( artifact ) );
+        assertEquals( "1.0", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.0", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
+        assertNull( range.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
+        assertFalse( range.isSelectedVersionKnown( artifact ), CHECK_SELECTED_VERSION_KNOWN );
+        assertNull( range.getSelectedVersion( artifact ), CHECK_SELECTED_VERSION );
 
         range = VersionRange.createFromVersionSpec( "[1.2,1.3]" );
         restrictions = range.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.2", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.3", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
-        assertNull( CHECK_VERSION_RECOMMENDATION, range.getRecommendedVersion() );
-        assertFalse( CHECK_SELECTED_VERSION_KNOWN, range.isSelectedVersionKnown( artifact ) );
-        assertNull( CHECK_SELECTED_VERSION, range.getSelectedVersion( artifact ) );
+        assertEquals( "1.2", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.3", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
+        assertNull( range.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
+        assertFalse( range.isSelectedVersionKnown( artifact ), CHECK_SELECTED_VERSION_KNOWN );
+        assertNull( range.getSelectedVersion( artifact ), CHECK_SELECTED_VERSION );
 
         range = VersionRange.createFromVersionSpec( "[1.0,2.0)" );
         restrictions = range.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.0", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "2.0", restriction.getUpperBound().toString() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
-        assertNull( CHECK_VERSION_RECOMMENDATION, range.getRecommendedVersion() );
-        assertFalse( CHECK_SELECTED_VERSION_KNOWN, range.isSelectedVersionKnown( artifact ) );
-        assertNull( CHECK_SELECTED_VERSION, range.getSelectedVersion( artifact ) );
+        assertEquals( "1.0", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "2.0", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
+        assertNull( range.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
+        assertFalse( range.isSelectedVersionKnown( artifact ), CHECK_SELECTED_VERSION_KNOWN );
+        assertNull( range.getSelectedVersion( artifact ), CHECK_SELECTED_VERSION );
 
         range = VersionRange.createFromVersionSpec( "[1.5,)" );
         restrictions = range.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.5", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
-        assertNull( CHECK_VERSION_RECOMMENDATION, range.getRecommendedVersion() );
-        assertFalse( CHECK_SELECTED_VERSION_KNOWN, range.isSelectedVersionKnown( artifact ) );
-        assertNull( CHECK_SELECTED_VERSION, range.getSelectedVersion( artifact ) );
+        assertEquals( "1.5", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
+        assertNull( range.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
+        assertFalse( range.isSelectedVersionKnown( artifact ), CHECK_SELECTED_VERSION_KNOWN );
+        assertNull( range.getSelectedVersion( artifact ), CHECK_SELECTED_VERSION );
 
         range = VersionRange.createFromVersionSpec( "(,1.0],[1.2,)" );
         restrictions = range.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 2, restrictions.size() );
+        assertEquals( 2, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.0", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
-        assertNull( CHECK_VERSION_RECOMMENDATION, range.getRecommendedVersion() );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.0", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
+        assertNull( range.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restriction = restrictions.get( 1 );
-        assertEquals( CHECK_LOWER_BOUND, "1.2", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
-        assertNull( CHECK_VERSION_RECOMMENDATION, range.getRecommendedVersion() );
-        assertFalse( CHECK_SELECTED_VERSION_KNOWN, range.isSelectedVersionKnown( artifact ) );
-        assertNull( CHECK_SELECTED_VERSION, range.getSelectedVersion( artifact ) );
+        assertEquals( "1.2", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
+        assertNull( range.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
+        assertFalse( range.isSelectedVersionKnown( artifact ), CHECK_SELECTED_VERSION_KNOWN );
+        assertNull( range.getSelectedVersion( artifact ), CHECK_SELECTED_VERSION );
 
         range = VersionRange.createFromVersionSpec( "[1.0,)" );
         assertFalse( range.containsVersion( new DefaultArtifactVersion( "1.0-SNAPSHOT" ) ) );
@@ -154,6 +160,7 @@ public class VersionRangeTest
         assertTrue( range.containsVersion( new DefaultArtifactVersion( "5.0.9.0" ) ) );
     }
 
+    @Test
     public void testInvalidRanges()
     {
         checkInvalidRange( "(1.0)" );
@@ -172,6 +179,7 @@ public class VersionRangeTest
         checkInvalidRange( "(1.1,1.2],[1.0,1.1)" );
     }
 
+    @Test
     public void testIntersections()
         throws InvalidVersionSpecificationException
     {
@@ -179,481 +187,482 @@ public class VersionRangeTest
         VersionRange range2 = VersionRange.createFromVersionSpec( "1.1" );
         VersionRange mergedRange = range1.restrict( range2 );
         // TODO current policy is to retain the original version - is this correct, do we need strategies or is that handled elsewhere?
-//        assertEquals( CHECK_VERSION_RECOMMENDATION, "1.1", mergedRange.getRecommendedVersion().toString() );
-        assertEquals( CHECK_VERSION_RECOMMENDATION, "1.0", mergedRange.getRecommendedVersion().toString() );
+//        assertEquals( "1.1", mergedRange.getRecommendedVersion().toString(), CHECK_VERSION_RECOMMENDATION );
+        assertEquals( "1.0", mergedRange.getRecommendedVersion().toString(), CHECK_VERSION_RECOMMENDATION );
         List<Restriction> restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         Restriction restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         mergedRange = range2.restrict( range1 );
-        assertEquals( CHECK_VERSION_RECOMMENDATION, "1.1", mergedRange.getRecommendedVersion().toString() );
+        assertEquals( "1.1", mergedRange.getRecommendedVersion().toString(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         // TODO test reversed restrictions on all below
         range1 = VersionRange.createFromVersionSpec( "[1.0,)" );
         range2 = VersionRange.createFromVersionSpec( "1.1" );
         mergedRange = range1.restrict( range2 );
-        assertEquals( CHECK_VERSION_RECOMMENDATION, "1.1", mergedRange.getRecommendedVersion().toString() );
+        assertEquals( "1.1", mergedRange.getRecommendedVersion().toString(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.0", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.0", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.1,)" );
         range2 = VersionRange.createFromVersionSpec( "1.1" );
         mergedRange = range1.restrict( range2 );
-        assertEquals( CHECK_VERSION_RECOMMENDATION, "1.1", mergedRange.getRecommendedVersion().toString() );
+        assertEquals( "1.1", mergedRange.getRecommendedVersion().toString(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.1]" );
         range2 = VersionRange.createFromVersionSpec( "1.1" );
         mergedRange = range1.restrict( range2 );
-        assertEquals( CHECK_VERSION_RECOMMENDATION, "1.1", mergedRange.getRecommendedVersion().toString() );
+        assertEquals( "1.1", mergedRange.getRecommendedVersion().toString(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(1.1,)" );
         range2 = VersionRange.createFromVersionSpec( "1.1" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.2,)" );
         range2 = VersionRange.createFromVersionSpec( "1.1" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.2", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.2", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(,1.2]" );
         range2 = VersionRange.createFromVersionSpec( "1.1" );
         mergedRange = range1.restrict( range2 );
-        assertEquals( CHECK_VERSION_RECOMMENDATION, "1.1", mergedRange.getRecommendedVersion().toString() );
+        assertEquals( "1.1", mergedRange.getRecommendedVersion().toString(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.2", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.2", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(,1.1]" );
         range2 = VersionRange.createFromVersionSpec( "1.1" );
         mergedRange = range1.restrict( range2 );
-        assertEquals( CHECK_VERSION_RECOMMENDATION, "1.1", mergedRange.getRecommendedVersion().toString() );
+        assertEquals( "1.1", mergedRange.getRecommendedVersion().toString(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.1", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.1", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(,1.1)" );
         range2 = VersionRange.createFromVersionSpec( "1.1" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.1", restriction.getUpperBound().toString() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.1", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(,1.0]" );
         range2 = VersionRange.createFromVersionSpec( "1.1" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.0", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.0", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(,1.0], [1.1,)" );
         range2 = VersionRange.createFromVersionSpec( "1.2" );
         mergedRange = range1.restrict( range2 );
-        assertEquals( CHECK_VERSION_RECOMMENDATION, "1.2", mergedRange.getRecommendedVersion().toString() );
+        assertEquals( "1.2", mergedRange.getRecommendedVersion().toString(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 2, restrictions.size() );
+        assertEquals( 2, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.0", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.0", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 1 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(,1.0], [1.1,)" );
         range2 = VersionRange.createFromVersionSpec( "1.0.5" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 2, restrictions.size() );
+        assertEquals( 2, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.0", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.0", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 1 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(,1.1), (1.1,)" );
         range2 = VersionRange.createFromVersionSpec( "1.1" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 2, restrictions.size() );
+        assertEquals( 2, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertNull( CHECK_LOWER_BOUND, restriction.getLowerBound() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.1", restriction.getUpperBound().toString() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertNull( restriction.getLowerBound(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.1", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 1 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertNull( CHECK_UPPER_BOUND, restriction.getUpperBound() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertNull( restriction.getUpperBound(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.1,1.3]" );
         range2 = VersionRange.createFromVersionSpec( "(1.1,)" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.3", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.3", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(,1.3)" );
         range2 = VersionRange.createFromVersionSpec( "[1.2,1.3]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.2", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.3", restriction.getUpperBound().toString() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.2", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.3", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.1,1.3]" );
         range2 = VersionRange.createFromVersionSpec( "[1.2,)" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.2", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.3", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.2", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.3", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(,1.3]" );
         range2 = VersionRange.createFromVersionSpec( "[1.2,1.4]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.2", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.3", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.2", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.3", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(1.2,1.3]" );
         range2 = VersionRange.createFromVersionSpec( "[1.1,1.4]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.2", restriction.getLowerBound().toString() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.3", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.2", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.3", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(1.2,1.3)" );
         range2 = VersionRange.createFromVersionSpec( "[1.1,1.4]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.2", restriction.getLowerBound().toString() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.3", restriction.getUpperBound().toString() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.2", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.3", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.2,1.3)" );
         range2 = VersionRange.createFromVersionSpec( "[1.1,1.4]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.2", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.3", restriction.getUpperBound().toString() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.2", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.3", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.0,1.1]" );
         range2 = VersionRange.createFromVersionSpec( "[1.1,1.4]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.1", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.1", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.0,1.1)" );
         range2 = VersionRange.createFromVersionSpec( "[1.1,1.4]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 0, restrictions.size() );
+        assertEquals( 0, restrictions.size(), CHECK_NUM_RESTRICTIONS );
 
         range1 = VersionRange.createFromVersionSpec( "[1.0,1.2],[1.3,1.5]" );
         range2 = VersionRange.createFromVersionSpec( "[1.1]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.1", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.1", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.0,1.2],[1.3,1.5]" );
         range2 = VersionRange.createFromVersionSpec( "[1.4]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.4", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.4", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.4", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.4", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.0,1.2],[1.3,1.5]" );
         range2 = VersionRange.createFromVersionSpec( "[1.1,1.4]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 2, restrictions.size() );
+        assertEquals( 2, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.2", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.2", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 1 );
-        assertEquals( CHECK_LOWER_BOUND, "1.3", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.4", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.3", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.4", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.0,1.2),(1.3,1.5]" );
         range2 = VersionRange.createFromVersionSpec( "[1.1,1.4]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 2, restrictions.size() );
+        assertEquals( 2, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.2", restriction.getUpperBound().toString() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.2", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 1 );
-        assertEquals( CHECK_LOWER_BOUND, "1.3", restriction.getLowerBound().toString() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.4", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.3", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.4", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.0,1.2],[1.3,1.5]" );
         range2 = VersionRange.createFromVersionSpec( "(1.1,1.4)" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 2, restrictions.size() );
+        assertEquals( 2, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.2", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.2", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 1 );
-        assertEquals( CHECK_LOWER_BOUND, "1.3", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.4", restriction.getUpperBound().toString() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.3", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.4", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.0,1.2),(1.3,1.5]" );
         range2 = VersionRange.createFromVersionSpec( "(1.1,1.4)" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 2, restrictions.size() );
+        assertEquals( 2, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.2", restriction.getUpperBound().toString() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.2", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 1 );
-        assertEquals( CHECK_LOWER_BOUND, "1.3", restriction.getLowerBound().toString() );
-        assertFalse( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.4", restriction.getUpperBound().toString() );
-        assertFalse( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.3", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertFalse( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.4", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertFalse( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "(,1.1),(1.4,)" );
         range2 = VersionRange.createFromVersionSpec( "[1.1,1.4]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 0, restrictions.size() );
+        assertEquals( 0, restrictions.size(), CHECK_NUM_RESTRICTIONS );
 
         range1 = VersionRange.createFromVersionSpec( "(,1.1],[1.4,)" );
         range2 = VersionRange.createFromVersionSpec( "(1.1,1.4)" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 0, restrictions.size() );
+        assertEquals( 0, restrictions.size(), CHECK_NUM_RESTRICTIONS );
 
         range1 = VersionRange.createFromVersionSpec( "[,1.1],[1.4,]" );
         range2 = VersionRange.createFromVersionSpec( "[1.2,1.3]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 0, restrictions.size() );
+        assertEquals( 0, restrictions.size(), CHECK_NUM_RESTRICTIONS );
 
         range1 = VersionRange.createFromVersionSpec( "[1.0,1.2],[1.3,1.5]" );
         range2 = VersionRange.createFromVersionSpec( "[1.1,1.4],[1.6,]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 2, restrictions.size() );
+        assertEquals( 2, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.2", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.2", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 1 );
-        assertEquals( CHECK_LOWER_BOUND, "1.3", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.4", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.3", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.4", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.0,1.2],[1.3,1.5]" );
         range2 = VersionRange.createFromVersionSpec( "[1.1,1.4],[1.5,]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 3, restrictions.size() );
+        assertEquals( 3, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.2", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.2", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 1 );
-        assertEquals( CHECK_LOWER_BOUND, "1.3", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.4", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.3", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.4", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 2 );
-        assertEquals( CHECK_LOWER_BOUND, "1.5", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.5", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.5", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.5", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         range1 = VersionRange.createFromVersionSpec( "[1.0,1.2],[1.3,1.7]" );
         range2 = VersionRange.createFromVersionSpec( "[1.1,1.4],[1.5,1.6]" );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 3, restrictions.size() );
+        assertEquals( 3, restrictions.size(), CHECK_NUM_RESTRICTIONS );
         restriction = restrictions.get( 0 );
-        assertEquals( CHECK_LOWER_BOUND, "1.1", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.2", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.1", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.2", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 1 );
-        assertEquals( CHECK_LOWER_BOUND, "1.3", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.4", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.3", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.4", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
         restriction = restrictions.get( 2 );
-        assertEquals( CHECK_LOWER_BOUND, "1.5", restriction.getLowerBound().toString() );
-        assertTrue( CHECK_LOWER_BOUND_INCLUSIVE, restriction.isLowerBoundInclusive() );
-        assertEquals( CHECK_UPPER_BOUND, "1.6", restriction.getUpperBound().toString() );
-        assertTrue( CHECK_UPPER_BOUND_INCLUSIVE, restriction.isUpperBoundInclusive() );
+        assertEquals( "1.5", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND );
+        assertTrue( restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE );
+        assertEquals( "1.6", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND );
+        assertTrue( restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE );
 
         // test restricting empty sets
         range1 = VersionRange.createFromVersionSpec( "[,1.1],[1.4,]" );
         range2 = VersionRange.createFromVersionSpec( "[1.2,1.3]" );
         range1 = range1.restrict( range2 );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 0, restrictions.size() );
+        assertEquals( 0, restrictions.size(), CHECK_NUM_RESTRICTIONS );
 
         range1 = VersionRange.createFromVersionSpec( "[,1.1],[1.4,]" );
         range2 = VersionRange.createFromVersionSpec( "[1.2,1.3]" );
         range2 = range1.restrict( range2 );
         mergedRange = range1.restrict( range2 );
-        assertNull( CHECK_VERSION_RECOMMENDATION, mergedRange.getRecommendedVersion() );
+        assertNull( mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION );
         restrictions = mergedRange.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 0, restrictions.size() );
+        assertEquals( 0, restrictions.size(), CHECK_NUM_RESTRICTIONS );
     }
 
+    @Test
     public void testReleaseRangeBoundsContainsSnapshots()
         throws InvalidVersionSpecificationException
     {
@@ -664,6 +673,7 @@ public class VersionRangeTest
         assertFalse( range.containsVersion( new DefaultArtifactVersion( "1.0-SNAPSHOT" ) ) );
     }
 
+    @Test
     public void testSnapshotRangeBoundsCanContainSnapshots()
         throws InvalidVersionSpecificationException
     {
@@ -678,6 +688,7 @@ public class VersionRangeTest
         assertTrue( range.containsVersion( new DefaultArtifactVersion( "1.1-SNAPSHOT" ) ) );
     }
 
+    @Test
     public void testSnapshotSoftVersionCanContainSnapshot()
         throws InvalidVersionSpecificationException
     {
@@ -688,17 +699,13 @@ public class VersionRangeTest
 
     private void checkInvalidRange( String version )
     {
-        try
-        {
-            VersionRange.createFromVersionSpec( version );
-            fail( "Version " + version + " should have failed to construct" );
-        }
-        catch ( InvalidVersionSpecificationException expected )
-        {
-            // expected
-        }
+        assertThrows(
+                InvalidVersionSpecificationException.class,
+                () -> VersionRange.createFromVersionSpec( version ),
+                "Version " + version + " should have failed to construct" );
     }
 
+    @Test
     public void testContains() throws InvalidVersionSpecificationException
     {
         ArtifactVersion actualVersion = new DefaultArtifactVersion( "2.0.5" );
@@ -723,11 +730,13 @@ public class VersionRangeTest
         return vr.containsVersion( actualVersion );
     }
 
+    @Test
     public void testOrder0()
     {
         // assertTrue( new DefaultArtifactVersion( "1.0-alpha10" ).compareTo( new DefaultArtifactVersion( "1.0-alpha1" ) ) > 0 );
     }
 
+    @Test
     public void testCache()
         throws InvalidVersionSpecificationException
     {
@@ -737,13 +746,13 @@ public class VersionRangeTest
         VersionRange spec = VersionRange.createFromVersionSpec( "1.0" );
         assertSame( spec, VersionRange.createFromVersionSpec( "1.0" ) ); // same instance from spec cache
         List<Restriction> restrictions = spec.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 1, restrictions.size() );
+        assertEquals( 1, restrictions.size(), CHECK_NUM_RESTRICTIONS );
 
         VersionRange version = VersionRange.createFromVersion( "1.0" );
         assertSame( version, VersionRange.createFromVersion( "1.0" ) ); // same instance from version cache
         restrictions = version.getRestrictions();
-        assertEquals( CHECK_NUM_RESTRICTIONS, 0, restrictions.size() );
+        assertEquals( 0, restrictions.size(), CHECK_NUM_RESTRICTIONS );
 
-        assertFalse( "check !VersionRange.createFromVersionSpec(x).equals(VersionRange.createFromVersion(x))", spec.equals( version ) );
+        assertFalse( spec.equals( version ), "check !VersionRange.createFromVersionSpec(x).equals(VersionRange.createFromVersion(x))" );
     }
 }
diff --git a/maven-builder-support/src/test/java/org/apache/maven/building/DefaultProblemCollectorTest.java b/maven-builder-support/src/test/java/org/apache/maven/building/DefaultProblemCollectorTest.java
index 57ddcfa1f8..dbde11ed52 100644
--- a/maven-builder-support/src/test/java/org/apache/maven/building/DefaultProblemCollectorTest.java
+++ b/maven-builder-support/src/test/java/org/apache/maven/building/DefaultProblemCollectorTest.java
@@ -19,10 +19,11 @@ package org.apache.maven.building;
  * under the License.
  */
 
-import static org.junit.Assert.*;
-
 import org.apache.maven.building.Problem.Severity;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 public class DefaultProblemCollectorTest
 {
diff --git a/maven-builder-support/src/test/java/org/apache/maven/building/DefaultProblemTest.java b/maven-builder-support/src/test/java/org/apache/maven/building/DefaultProblemTest.java
index 1615fc3751..4d9a3d89cc 100644
--- a/maven-builder-support/src/test/java/org/apache/maven/building/DefaultProblemTest.java
+++ b/maven-builder-support/src/test/java/org/apache/maven/building/DefaultProblemTest.java
@@ -19,11 +19,11 @@ package org.apache.maven.building;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertSame;
-
 import org.apache.maven.building.Problem.Severity;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
 public class DefaultProblemTest
 {
diff --git a/maven-builder-support/src/test/java/org/apache/maven/building/FileSourceTest.java b/maven-builder-support/src/test/java/org/apache/maven/building/FileSourceTest.java
index 40ab4956cf..9373c01e8d 100644
--- a/maven-builder-support/src/test/java/org/apache/maven/building/FileSourceTest.java
+++ b/maven-builder-support/src/test/java/org/apache/maven/building/FileSourceTest.java
@@ -19,14 +19,14 @@ package org.apache.maven.building;
  * under the License.
  */
 
-import org.junit.Test;
-
 import java.io.File;
 import java.io.InputStream;
 import java.util.Scanner;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class FileSourceTest
 {
@@ -34,15 +34,11 @@ public class FileSourceTest
     @Test
     public void testFileSource()
     {
-        try
-        {
-            new FileSource( null );
-            fail( "Should fail, since you must specify a file" );
-        }
-        catch ( NullPointerException e )
-        {
-            assertEquals( "file cannot be null", e.getMessage() );
-        }
+        NullPointerException e = assertThrows(
+                NullPointerException.class,
+                () -> new FileSource( null ),
+                "Should fail, since you must specify a file" );
+        assertEquals( "file cannot be null", e.getMessage() );
     }
 
     @Test
diff --git a/maven-builder-support/src/test/java/org/apache/maven/building/ProblemCollectorFactoryTest.java b/maven-builder-support/src/test/java/org/apache/maven/building/ProblemCollectorFactoryTest.java
index 2fdcbb70c4..ee2575b9f1 100644
--- a/maven-builder-support/src/test/java/org/apache/maven/building/ProblemCollectorFactoryTest.java
+++ b/maven-builder-support/src/test/java/org/apache/maven/building/ProblemCollectorFactoryTest.java
@@ -19,12 +19,12 @@ package org.apache.maven.building;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotSame;
-
 import java.util.Collections;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
 
 public class ProblemCollectorFactoryTest
 {
diff --git a/maven-builder-support/src/test/java/org/apache/maven/building/StringSourceTest.java b/maven-builder-support/src/test/java/org/apache/maven/building/StringSourceTest.java
index 6d9a671e71..85309aa86b 100644
--- a/maven-builder-support/src/test/java/org/apache/maven/building/StringSourceTest.java
+++ b/maven-builder-support/src/test/java/org/apache/maven/building/StringSourceTest.java
@@ -19,12 +19,12 @@ package org.apache.maven.building;
  * under the License.
  */
 
-import org.junit.Test;
-
 import java.io.InputStream;
 import java.util.Scanner;
 
-import static org.junit.Assert.assertEquals;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class StringSourceTest
 {
diff --git a/maven-builder-support/src/test/java/org/apache/maven/building/UrlSourceTest.java b/maven-builder-support/src/test/java/org/apache/maven/building/UrlSourceTest.java
index 00f3a6835a..efdb9bb684 100644
--- a/maven-builder-support/src/test/java/org/apache/maven/building/UrlSourceTest.java
+++ b/maven-builder-support/src/test/java/org/apache/maven/building/UrlSourceTest.java
@@ -19,15 +19,15 @@ package org.apache.maven.building;
  * under the License.
  */
 
-import org.junit.Test;
-
 import java.io.File;
 import java.io.InputStream;
 import java.net.URL;
 import java.util.Scanner;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class UrlSourceTest
 {
@@ -35,15 +35,11 @@ public class UrlSourceTest
     @Test
     public void testUrlSource()
     {
-        try
-        {
-            new UrlSource( null );
-            fail( "Should fail, since you must specify a url" );
-        }
-        catch ( NullPointerException e )
-        {
-            assertEquals( "url cannot be null", e.getMessage() );
-        }
+        NullPointerException e = assertThrows(
+                NullPointerException.class,
+                () -> new UrlSource( null ),
+                "Should fail, since you must specify a url" );
+        assertEquals( "url cannot be null", e.getMessage() );
     }
 
     @Test
diff --git a/maven-compat/pom.xml b/maven-compat/pom.xml
index 73d1a2463c..be1cd35786 100644
--- a/maven-compat/pom.xml
+++ b/maven-compat/pom.xml
@@ -99,6 +99,11 @@ under the License.
       <artifactId>wagon-provider-api</artifactId>
     </dependency>
 
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-test-support</artifactId>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-cipher</artifactId>
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/AbstractArtifactComponentTestCase.java b/maven-compat/src/test/java/org/apache/maven/artifact/AbstractArtifactComponentTestCase.java
index 3c0ce1371b..146ec685eb 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/AbstractArtifactComponentTestCase.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/AbstractArtifactComponentTestCase.java
@@ -19,6 +19,20 @@ package org.apache.maven.artifact;
  * under the License.
  */
 
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.inject.Inject;
+import javax.inject.Named;
+
+import org.apache.maven.test.PlexusTestCase;
 import org.apache.maven.artifact.factory.ArtifactFactory;
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.artifact.repository.ArtifactRepositoryPolicy;
@@ -28,10 +42,6 @@ import org.apache.maven.execution.DefaultMavenExecutionResult;
 import org.apache.maven.execution.MavenSession;
 import org.apache.maven.plugin.LegacySupport;
 import org.apache.maven.repository.legacy.repository.ArtifactRepositoryFactory;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
 import org.eclipse.aether.DefaultRepositorySystemSession;
 import org.eclipse.aether.RepositorySystemSession;
 import org.eclipse.aether.collection.DependencyGraphTransformer;
@@ -54,18 +64,11 @@ import org.eclipse.aether.util.graph.transformer.NearestVersionSelector;
 import org.eclipse.aether.util.graph.transformer.SimpleOptionalitySelector;
 import org.eclipse.aether.util.graph.traverser.FatArtifactTraverser;
 import org.eclipse.aether.util.repository.SimpleArtifactDescriptorPolicy;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 
-import javax.inject.Inject;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.OutputStreamWriter;
-import java.io.Writer;
-import java.nio.charset.StandardCharsets;
-import java.security.MessageDigest;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * @author <a href="mailto:jason@maven.org">Jason van Zyl </a>
@@ -82,24 +85,15 @@ public abstract class AbstractArtifactComponentTestCase
     @Inject
     LegacySupport legacySupport;
 
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
+    @Inject @Named( "default" )
+    ArtifactRepositoryLayout repoLayout;
 
-    @Override
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
         super.setUp();
 
-        ((DefaultPlexusContainer)getContainer())
-                .addPlexusInjector( Collections.emptyList(),
-                        binder ->  binder.requestInjection( this ) );
-
         RepositorySystemSession repoSession = initRepoSession();
         MavenSession session = new MavenSession( getContainer(), repoSession, new DefaultMavenExecutionRequest(),
                                                  new DefaultMavenExecutionResult() );
@@ -107,15 +101,6 @@ public abstract class AbstractArtifactComponentTestCase
         legacySupport.setSession( session );
     }
 
-    @Override
-    protected void tearDown()
-        throws Exception
-    {
-        release( artifactFactory );
-
-        super.tearDown();
-    }
-
     protected abstract String component();
 
     /**
@@ -132,9 +117,6 @@ public abstract class AbstractArtifactComponentTestCase
 
         f.createNewFile();
 
-        ArtifactRepositoryLayout repoLayout =
-            (ArtifactRepositoryLayout) lookup( ArtifactRepositoryLayout.ROLE, "default" );
-
         return artifactRepositoryFactory.createArtifactRepository( "test", "file://" + f.getPath(), repoLayout, null,
                                                                    null );
     }
@@ -151,9 +133,6 @@ public abstract class AbstractArtifactComponentTestCase
 
         File f = new File( getBasedir(), path );
 
-        ArtifactRepositoryLayout repoLayout =
-            (ArtifactRepositoryLayout) lookup( ArtifactRepositoryLayout.ROLE, "default" );
-
         return artifactRepositoryFactory.createArtifactRepository( "local", "file://" + f.getPath(), repoLayout, null,
                                                                    null );
     }
@@ -165,9 +144,6 @@ public abstract class AbstractArtifactComponentTestCase
 
         File f = new File( getBasedir(), path );
 
-        ArtifactRepositoryLayout repoLayout =
-            (ArtifactRepositoryLayout) lookup( ArtifactRepositoryLayout.ROLE, "default" );
-
         return artifactRepositoryFactory.createArtifactRepository( "test", "file://" + f.getPath(), repoLayout,
                                                                    new ArtifactRepositoryPolicy(),
                                                                    new ArtifactRepositoryPolicy() );
@@ -176,9 +152,6 @@ public abstract class AbstractArtifactComponentTestCase
     protected ArtifactRepository badRemoteRepository()
         throws Exception
     {
-        ArtifactRepositoryLayout repoLayout =
-            (ArtifactRepositoryLayout) lookup( ArtifactRepositoryLayout.ROLE, "default" );
-
         return artifactRepositoryFactory.createArtifactRepository( "test", "http://foo.bar/repository", repoLayout,
                                                                    null, null );
     }
@@ -192,10 +165,7 @@ public abstract class AbstractArtifactComponentTestCase
 
         File file = new File( remoteRepo.getBasedir(), path );
 
-        if ( !file.exists() )
-        {
-            fail( "Remote artifact " + file + " should be present." );
-        }
+        assertTrue( file.exists(), "Remote artifact " + file + " should be present." );
     }
 
     protected void assertLocalArtifactPresent( Artifact artifact )
@@ -207,10 +177,7 @@ public abstract class AbstractArtifactComponentTestCase
 
         File file = new File( localRepo.getBasedir(), path );
 
-        if ( !file.exists() )
-        {
-            fail( "Local artifact " + file + " should be present." );
-        }
+        assertTrue( file.exists(), "Local artifact " + file + " should be present." );
     }
 
     protected void assertRemoteArtifactNotPresent( Artifact artifact )
@@ -222,10 +189,7 @@ public abstract class AbstractArtifactComponentTestCase
 
         File file = new File( remoteRepo.getBasedir(), path );
 
-        if ( file.exists() )
-        {
-            fail( "Remote artifact " + file + " should not be present." );
-        }
+        assertFalse( file.exists(), "Remote artifact " + file + " should not be present." );
     }
 
     protected void assertLocalArtifactNotPresent( Artifact artifact )
@@ -237,10 +201,7 @@ public abstract class AbstractArtifactComponentTestCase
 
         File file = new File( localRepo.getBasedir(), path );
 
-        if ( file.exists() )
-        {
-            fail( "Local artifact " + file + " should not be present." );
-        }
+        assertFalse( file.exists(), "Local artifact " + file + " should not be present." );
     }
 
     // ----------------------------------------------------------------------
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/deployer/ArtifactDeployerTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/deployer/ArtifactDeployerTest.java
index 30b1ab3396..05191ae684 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/deployer/ArtifactDeployerTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/deployer/ArtifactDeployerTest.java
@@ -25,6 +25,11 @@ import org.apache.maven.artifact.AbstractArtifactComponentTestCase;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.codehaus.plexus.util.FileUtils;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import javax.inject.Inject;
 
@@ -42,6 +47,7 @@ public class ArtifactDeployerTest
         return "deployer";
     }
 
+    @Test
     public void testArtifactInstallation()
         throws Exception
     {
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/factory/DefaultArtifactFactoryTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/factory/DefaultArtifactFactoryTest.java
index cee9f5a11d..6dcf99acb0 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/factory/DefaultArtifactFactoryTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/factory/DefaultArtifactFactoryTest.java
@@ -19,19 +19,14 @@ package org.apache.maven.artifact.factory;
  * under the License.
  */
 
+import javax.inject.Inject;
+
+import org.apache.maven.test.PlexusTestCase;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.versioning.VersionRange;
-import org.apache.maven.execution.DefaultMavenExecutionRequest;
-import org.apache.maven.execution.DefaultMavenExecutionResult;
-import org.apache.maven.execution.MavenSession;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
-import org.eclipse.aether.RepositorySystemSession;
+import org.junit.jupiter.api.Test;
 
-import javax.inject.Inject;
-import java.util.Collections;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class DefaultArtifactFactoryTest
     extends PlexusTestCase
@@ -40,25 +35,7 @@ public class DefaultArtifactFactoryTest
     @Inject
     ArtifactFactory factory;
 
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp()
-            throws Exception
-    {
-        super.setUp();
-
-        ((DefaultPlexusContainer)getContainer())
-                .addPlexusInjector( Collections.emptyList(),
-                        binder ->  binder.requestInjection( this ) );
-    }
-
+    @Test
     public void testPropagationOfSystemScopeRegardlessOfInheritedScope()
     {
         Artifact artifact = factory.createDependencyArtifact( "test-grp", "test-artifact", VersionRange.createFromVersion("1.0"), "type", null, "system", "provided" );
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/installer/ArtifactInstallerTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/installer/ArtifactInstallerTest.java
index df519b3b25..695c5cc2e5 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/installer/ArtifactInstallerTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/installer/ArtifactInstallerTest.java
@@ -23,6 +23,8 @@ import java.io.File;
 
 import org.apache.maven.artifact.AbstractArtifactComponentTestCase;
 import org.apache.maven.artifact.Artifact;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 import javax.inject.Inject;
 
@@ -40,6 +42,7 @@ public class ArtifactInstallerTest
         return "installer";
     }
 
+    @Test
     public void testArtifactInstallation()
         throws Exception
     {
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/repository/MavenArtifactRepositoryTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/repository/MavenArtifactRepositoryTest.java
index 533f304207..4e7b5dc8c1 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/repository/MavenArtifactRepositoryTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/repository/MavenArtifactRepositoryTest.java
@@ -20,10 +20,12 @@ package org.apache.maven.artifact.repository;
  */
 
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class MavenArtifactRepositoryTest
-    extends TestCase
 {
     private static class MavenArtifactRepositorySubclass extends MavenArtifactRepository
     {
@@ -41,6 +43,7 @@ public class MavenArtifactRepositoryTest
         }
     }
 
+    @Test
     public void testHashCodeEquals()
     {
         MavenArtifactRepositorySubclass r1 = new MavenArtifactRepositorySubclass( "foo" );
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/ArtifactResolutionExceptionTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/ArtifactResolutionExceptionTest.java
index 8b75149c0c..e6b0e567a2 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/ArtifactResolutionExceptionTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/ArtifactResolutionExceptionTest.java
@@ -22,7 +22,9 @@ package org.apache.maven.artifact.resolver;
 import java.util.Arrays;
 import java.util.List;
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * Test the artifact resolution exception message
@@ -30,10 +32,10 @@ import junit.framework.TestCase;
  * @author Mauro Talevi
  */
 public class ArtifactResolutionExceptionTest
-    extends TestCase
 {
     private static final String LS = System.lineSeparator();
 
+    @Test
     public void testMissingArtifactMessageFormat()
     {
         String message = "Missing artifact";
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/ArtifactResolverTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/ArtifactResolverTest.java
index 00c1344da5..d621d906e9 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/ArtifactResolverTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/ArtifactResolverTest.java
@@ -29,12 +29,18 @@ import java.util.Set;
 
 import org.apache.maven.artifact.AbstractArtifactComponentTestCase;
 import org.apache.maven.artifact.Artifact;
-import org.apache.maven.artifact.metadata.ArtifactMetadataRetrievalException;
 import org.apache.maven.artifact.metadata.ArtifactMetadataSource;
 import org.apache.maven.artifact.metadata.ResolutionGroup;
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.artifact.versioning.ArtifactVersion;
 import org.apache.maven.repository.legacy.metadata.MetadataResolutionRequest;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import javax.inject.Inject;
 
@@ -55,8 +61,9 @@ public class ArtifactResolverTest
 
     private Artifact projectArtifact;
 
+    @BeforeEach
     @Override
-    protected void setUp()
+    public void setUp()
         throws Exception
     {
         super.setUp();
@@ -64,8 +71,9 @@ public class ArtifactResolverTest
         projectArtifact = createLocalArtifact( "project", "3.0" );
     }
 
+    @AfterEach
     @Override
-    protected void tearDown()
+    public void tearDown()
         throws Exception
     {
         projectArtifact = null;
@@ -78,6 +86,7 @@ public class ArtifactResolverTest
         return "resolver";
     }
 
+    @Test
     public void testResolutionOfASingleArtifactWhereTheArtifactIsPresentInTheLocalRepository()
         throws Exception
     {
@@ -88,6 +97,7 @@ public class ArtifactResolverTest
         assertLocalArtifactPresent( a );
     }
 
+    @Test
     public void testResolutionOfASingleArtifactWhereTheArtifactIsNotPresentLocallyAndMustBeRetrievedFromTheRemoteRepository()
         throws Exception
     {
@@ -105,6 +115,7 @@ public class ArtifactResolverTest
         return super.createArtifact( groupId, artifactId, version, type );
     }
 
+    @Test
     public void testTransitiveResolutionWhereAllArtifactsArePresentInTheLocalRepository()
         throws Exception
     {
@@ -127,6 +138,7 @@ public class ArtifactResolverTest
         assertLocalArtifactPresent( h );
     }
 
+    @Test
     public void testTransitiveResolutionWhereAllArtifactsAreNotPresentInTheLocalRepositoryAndMustBeRetrievedFromTheRemoteRepository()
         throws Exception
     {
@@ -151,22 +163,19 @@ public class ArtifactResolverTest
         assertLocalArtifactPresent( j );
     }
 
+    @Test
     public void testResolutionFailureWhenArtifactNotPresentInRemoteRepository()
         throws Exception
     {
         Artifact k = createArtifact( "k", "1.0" );
 
-        try
-        {
-            artifactResolver.resolve( k, remoteRepositories(), localRepository() );
-            fail( "Resolution succeeded when it should have failed" );
-        }
-        catch ( ArtifactNotFoundException expected )
-        {
-            assertTrue( true );
-        }
+        assertThrows(
+                ArtifactNotFoundException.class,
+                () -> artifactResolver.resolve( k, remoteRepositories(), localRepository() ),
+                "Resolution succeeded when it should have failed" );
     }
 
+    @Test
     public void testResolutionOfAnArtifactWhereOneRemoteRepositoryIsBadButOneIsGood()
         throws Exception
     {
@@ -182,6 +191,7 @@ public class ArtifactResolverTest
         assertLocalArtifactPresent( l );
     }
 
+    @Test
     public void testTransitiveResolutionOrder()
         throws Exception
     {
@@ -237,8 +247,8 @@ public class ArtifactResolverTest
         printErrors( result );
 
         Iterator<Artifact> i = result.getArtifacts().iterator();
-        assertEquals( "n should be first", n, i.next() );
-        assertEquals( "m should be second", m, i.next() );
+        assertEquals( n, i.next(), "n should be first" );
+        assertEquals( m, i.next(), "m should be second" );
 
         // inverse order
         set = new LinkedHashSet<>();
@@ -251,8 +261,8 @@ public class ArtifactResolverTest
         printErrors( result );
 
         i = result.getArtifacts().iterator();
-        assertEquals( "m should be first", m, i.next() );
-        assertEquals( "n should be second", n, i.next() );
+        assertEquals( m, i.next(), "m should be first" );
+        assertEquals( n, i.next(), "n should be second" );
     }
 
     private void printErrors( ArtifactResolutionResult result )
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/DefaultArtifactResolverTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/DefaultArtifactResolverTest.java
index 9e221eeef7..fdd5f62bcf 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/DefaultArtifactResolverTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/DefaultArtifactResolverTest.java
@@ -24,6 +24,11 @@ import java.util.Collections;
 import org.apache.maven.artifact.AbstractArtifactComponentTestCase;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.resolver.DefaultArtifactResolver.DaemonThreadCreator;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import javax.inject.Inject;
 
@@ -35,16 +40,18 @@ public class DefaultArtifactResolverTest
 
     private Artifact projectArtifact;
 
+    @BeforeEach
     @Override
-    protected void setUp()
+    public void setUp()
         throws Exception
     {
         super.setUp();
         projectArtifact = createLocalArtifact( "project", "3.0" );
     }
 
+    @AfterEach
     @Override
-    protected void tearDown()
+    public void tearDown()
         throws Exception
     {
         projectArtifact = null;
@@ -57,6 +64,7 @@ public class DefaultArtifactResolverTest
         return "resolver";
     }
 
+    @Test
     public void testMNG4738()
         throws Exception
     {
@@ -94,14 +102,15 @@ public class DefaultArtifactResolverTest
             {
                 String name = active.getName();
                 boolean daemon = active.isDaemon();
-                assertTrue( name + " is no daemon Thread.", daemon );
+                assertTrue( daemon, name + " is no daemon Thread." );
             }
 
         }
 
-        assertTrue( "Could not find ThreadGroup: " + DaemonThreadCreator.THREADGROUP_NAME, seen );
+        assertTrue( seen, "Could not find ThreadGroup: " + DaemonThreadCreator.THREADGROUP_NAME );
     }
 
+    @Test
     public void testLookup()
         throws Exception
     {
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/AndArtifactFilterTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/AndArtifactFilterTest.java
index 50517f4e20..96a8882232 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/AndArtifactFilterTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/AndArtifactFilterTest.java
@@ -21,7 +21,11 @@ package org.apache.maven.artifact.resolver.filter;
 
 import java.util.Arrays;
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@link AndArtifactFilter}.
@@ -29,7 +33,6 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class AndArtifactFilterTest
-    extends TestCase
 {
 
     private ArtifactFilter newSubFilter()
@@ -37,6 +40,7 @@ public class AndArtifactFilterTest
         return artifact -> false;
     }
 
+    @Test
     public void testEquals()
     {
         AndArtifactFilter filter1 = new AndArtifactFilter();
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/FilterHashEqualsTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/FilterHashEqualsTest.java
index fb4656637e..6c3df9e900 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/FilterHashEqualsTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/FilterHashEqualsTest.java
@@ -22,15 +22,17 @@ package org.apache.maven.artifact.resolver.filter;
 import java.util.Arrays;
 import java.util.List;
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * @author Igor Fedorenko
  */
 public class FilterHashEqualsTest
-    extends TestCase
 {
 
+    @Test
     public void testIncludesExcludesArtifactFilter()
     {
         List<String> patterns = Arrays.asList( "c", "d", "e" );
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/OrArtifactFilterTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/OrArtifactFilterTest.java
index 5971cc3823..65d9caa2b2 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/OrArtifactFilterTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/OrArtifactFilterTest.java
@@ -21,7 +21,11 @@ package org.apache.maven.artifact.resolver.filter;
 
 import java.util.Arrays;
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@link OrArtifactFilter}.
@@ -29,7 +33,6 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class OrArtifactFilterTest
-    extends TestCase
 {
 
     private ArtifactFilter newSubFilter()
@@ -37,6 +40,7 @@ public class OrArtifactFilterTest
         return artifact -> false;
     }
 
+    @Test
     public void testEquals()
     {
         OrArtifactFilter filter1 = new OrArtifactFilter();
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/ScopeArtifactFilterTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/ScopeArtifactFilterTest.java
index 1a65eca082..914ff99bcb 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/ScopeArtifactFilterTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/resolver/filter/ScopeArtifactFilterTest.java
@@ -21,8 +21,10 @@ package org.apache.maven.artifact.resolver.filter;
 
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.DefaultArtifact;
+import org.junit.jupiter.api.Test;
 
-import junit.framework.TestCase;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@link ScopeArtifactFilter}.
@@ -30,7 +32,6 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ScopeArtifactFilterTest
-    extends TestCase
 {
 
     private Artifact newArtifact( String scope )
@@ -38,6 +39,7 @@ public class ScopeArtifactFilterTest
         return new DefaultArtifact( "g", "a", "1.0", scope, "jar", "", null );
     }
 
+    @Test
     public void testInclude_Compile()
     {
         ScopeArtifactFilter filter = new ScopeArtifactFilter( Artifact.SCOPE_COMPILE );
@@ -49,6 +51,7 @@ public class ScopeArtifactFilterTest
         assertFalse( filter.include( newArtifact( Artifact.SCOPE_TEST ) ) );
     }
 
+    @Test
     public void testInclude_CompilePlusRuntime()
     {
         ScopeArtifactFilter filter = new ScopeArtifactFilter( Artifact.SCOPE_COMPILE_PLUS_RUNTIME );
@@ -60,6 +63,7 @@ public class ScopeArtifactFilterTest
         assertFalse( filter.include( newArtifact( Artifact.SCOPE_TEST ) ) );
     }
 
+    @Test
     public void testInclude_Runtime()
     {
         ScopeArtifactFilter filter = new ScopeArtifactFilter( Artifact.SCOPE_RUNTIME );
@@ -71,6 +75,7 @@ public class ScopeArtifactFilterTest
         assertFalse( filter.include( newArtifact( Artifact.SCOPE_TEST ) ) );
     }
 
+    @Test
     public void testInclude_RuntimePlusSystem()
     {
         ScopeArtifactFilter filter = new ScopeArtifactFilter( Artifact.SCOPE_RUNTIME_PLUS_SYSTEM );
@@ -82,6 +87,7 @@ public class ScopeArtifactFilterTest
         assertFalse( filter.include( newArtifact( Artifact.SCOPE_TEST ) ) );
     }
 
+    @Test
     public void testInclude_Test()
     {
         ScopeArtifactFilter filter = new ScopeArtifactFilter( Artifact.SCOPE_TEST );
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/testutils/TestFileManager.java b/maven-compat/src/test/java/org/apache/maven/artifact/testutils/TestFileManager.java
index 9761e75e52..558b5a5ca3 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/testutils/TestFileManager.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/testutils/TestFileManager.java
@@ -45,7 +45,10 @@ import java.util.Iterator;
 import java.util.List;
 
 import org.codehaus.plexus.util.FileUtils;
-import org.junit.Assert;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class TestFileManager
 {
@@ -157,11 +160,11 @@ public class TestFileManager
 
         if ( shouldExist )
         {
-            Assert.assertTrue( file.exists() );
+            assertTrue( file.exists() );
         }
         else
         {
-            Assert.assertFalse( file.exists() );
+            assertFalse( file.exists() );
         }
     }
 
@@ -174,7 +177,7 @@ public class TestFileManager
 
         String contents = FileUtils.fileRead( file, encoding );
 
-        Assert.assertEquals( contentsTest, contents );
+        assertEquals( contentsTest, contents );
     }
 
     public File createFile( File dir, String filename, String contents, String encoding )
diff --git a/maven-compat/src/test/java/org/apache/maven/artifact/transform/TransformationManagerTest.java b/maven-compat/src/test/java/org/apache/maven/artifact/transform/TransformationManagerTest.java
index ff0d3bbfa1..5c1ae2d289 100644
--- a/maven-compat/src/test/java/org/apache/maven/artifact/transform/TransformationManagerTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/artifact/transform/TransformationManagerTest.java
@@ -15,7 +15,6 @@ package org.apache.maven.artifact.transform;
  * the License.
  */
 
-import java.util.Collections;
 import java.util.List;
 
 import org.apache.maven.repository.legacy.resolver.transform.ArtifactTransformation;
@@ -23,10 +22,11 @@ import org.apache.maven.repository.legacy.resolver.transform.ArtifactTransformat
 import org.apache.maven.repository.legacy.resolver.transform.LatestArtifactTransformation;
 import org.apache.maven.repository.legacy.resolver.transform.ReleaseArtifactTransformation;
 import org.apache.maven.repository.legacy.resolver.transform.SnapshotTransformation;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
+import org.apache.maven.test.PlexusTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import javax.inject.Inject;
 
@@ -37,36 +37,18 @@ public class TransformationManagerTest
     @Inject
     ArtifactTransformationManager tm;
 
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp()
-            throws Exception
-    {
-        super.setUp();
-
-        ((DefaultPlexusContainer)getContainer())
-                .addPlexusInjector( Collections.emptyList(),
-                        binder ->  binder.requestInjection( this ) );
-    }
-
+    @Test
     public void testTransformationManager()
     {
         List<ArtifactTransformation> tms = tm.getArtifactTransformations();
 
         assertEquals( 3, tms.size() );
 
-        assertTrue( "We expected the release transformation and got " + tms.get(0), tms.get(0) instanceof ReleaseArtifactTransformation );
+        assertTrue( tms.get(0) instanceof ReleaseArtifactTransformation, "We expected the release transformation and got " + tms.get(0) );
 
-        assertTrue( "We expected the latest transformation and got " + tms.get(1), tms.get(1) instanceof LatestArtifactTransformation );
+        assertTrue( tms.get(1) instanceof LatestArtifactTransformation, "We expected the latest transformation and got " + tms.get(1) );
 
-        assertTrue( "We expected the snapshot transformation and got " + tms.get(2), tms.get(2) instanceof SnapshotTransformation );
+        assertTrue( tms.get(2) instanceof SnapshotTransformation, "We expected the snapshot transformation and got " + tms.get(2) );
     }
 
 }
diff --git a/maven-compat/src/test/java/org/apache/maven/profiles/manager/DefaultProfileManagerTest.java b/maven-compat/src/test/java/org/apache/maven/profiles/manager/DefaultProfileManagerTest.java
index 6b8caabf0f..442493a64c 100644
--- a/maven-compat/src/test/java/org/apache/maven/profiles/manager/DefaultProfileManagerTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/profiles/manager/DefaultProfileManagerTest.java
@@ -19,36 +19,25 @@ package org.apache.maven.profiles.manager;
  * under the License.
  */
 
-import java.util.Collections;
 import java.util.List;
 import java.util.Properties;
 
-import org.apache.maven.execution.DefaultMavenExecutionRequest;
-import org.apache.maven.execution.DefaultMavenExecutionResult;
-import org.apache.maven.execution.MavenSession;
+import org.apache.maven.test.PlexusTestCase;
 import org.apache.maven.model.Activation;
 import org.apache.maven.model.ActivationProperty;
 import org.apache.maven.model.Profile;
 import org.apache.maven.profiles.DefaultProfileManager;
 import org.apache.maven.profiles.ProfileManager;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
-import org.eclipse.aether.RepositorySystemSession;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 public class DefaultProfileManagerTest
     extends PlexusTestCase
 {
 
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
+    @Test
     public void testShouldActivateDefaultProfile()
         throws Exception
     {
@@ -84,6 +73,7 @@ public class DefaultProfileManagerTest
         assertEquals( "defaultActivated", ( (Profile) active.get( 0 ) ).getId() );
     }
 
+    @Test
     public void testShouldNotActivateDefaultProfile()
         throws Exception
     {
@@ -123,6 +113,7 @@ public class DefaultProfileManagerTest
     }
 
 
+    @Test
     public void testShouldNotActivateReversalOfPresentSystemProperty()
         throws Exception
     {
@@ -150,6 +141,7 @@ public class DefaultProfileManagerTest
         assertEquals( 0, active.size() );
     }
 
+    @Test
     public void testShouldOverrideAndActivateInactiveProfile()
         throws Exception
     {
@@ -180,6 +172,7 @@ public class DefaultProfileManagerTest
         assertEquals( "syspropActivated", ( (Profile) active.get( 0 ) ).getId() );
     }
 
+    @Test
     public void testShouldOverrideAndDeactivateActiveProfile()
         throws Exception
     {
diff --git a/maven-compat/src/test/java/org/apache/maven/project/AbstractMavenProjectTestCase.java b/maven-compat/src/test/java/org/apache/maven/project/AbstractMavenProjectTestCase.java
index d05aa8f59a..338cffa6a0 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/AbstractMavenProjectTestCase.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/AbstractMavenProjectTestCase.java
@@ -21,25 +21,21 @@ import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URL;
 import java.util.Arrays;
-import java.util.Collections;
 
+import javax.inject.Inject;
+
+import org.apache.maven.test.PlexusTestCase;
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.artifact.repository.layout.ArtifactRepositoryLayout;
-import org.apache.maven.execution.DefaultMavenExecutionRequest;
-import org.apache.maven.execution.DefaultMavenExecutionResult;
-import org.apache.maven.execution.MavenSession;
 import org.apache.maven.model.building.ModelBuildingException;
 import org.apache.maven.model.building.ModelProblem;
 import org.apache.maven.repository.RepositorySystem;
 import org.apache.maven.repository.internal.MavenRepositorySystemUtils;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
 import org.eclipse.aether.DefaultRepositorySystemSession;
-import org.eclipse.aether.RepositorySystemSession;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 
-import javax.inject.Inject;
+import static org.junit.jupiter.api.Assertions.fail;
 
 /**
  * @author Jason van Zyl
@@ -53,23 +49,12 @@ public abstract class AbstractMavenProjectTestCase
     protected RepositorySystem repositorySystem;
 
     @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp()
-            throws Exception
+    @BeforeEach
+    public void setUp()
+        throws Exception
     {
         super.setUp();
 
-        ((DefaultPlexusContainer)getContainer())
-                .addPlexusInjector( Collections.emptyList(),
-                        binder ->  binder.requestInjection( this ) );
-
         if ( getContainer().hasComponent( ProjectBuilder.class, "test" ) )
         {
             projectBuilder = lookup( ProjectBuilder.class, "test" );
@@ -81,8 +66,8 @@ public abstract class AbstractMavenProjectTestCase
         }
     }
 
-    @Override
-    protected void tearDown()
+    @AfterEach
+    public void tearDown()
         throws Exception
     {
         projectBuilder = null;
diff --git a/maven-compat/src/test/java/org/apache/maven/project/ModelUtilsTest.java b/maven-compat/src/test/java/org/apache/maven/project/ModelUtilsTest.java
index 402ae74b91..74178d98c3 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/ModelUtilsTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/ModelUtilsTest.java
@@ -26,8 +26,6 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 
-import junit.framework.TestCase;
-
 import org.apache.maven.model.Build;
 import org.apache.maven.model.Dependency;
 import org.apache.maven.model.Plugin;
@@ -36,11 +34,17 @@ import org.apache.maven.model.PluginExecution;
 import org.codehaus.plexus.util.xml.Xpp3Dom;
 import org.codehaus.plexus.util.xml.Xpp3DomBuilder;
 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 
 public class ModelUtilsTest
-    extends TestCase
 {
 
+    @Test
     public void testShouldUseMainPluginDependencyVersionOverManagedDepVersion()
     {
         Plugin mgtPlugin = createPlugin( "group", "artifact", "1", Collections.EMPTY_MAP );
@@ -68,6 +72,7 @@ public class ModelUtilsTest
         return dep;
     }
 
+    @Test
     public void testShouldNotInheritPluginWithInheritanceSetToFalse()
     {
         PluginContainer parent = new PluginContainer();
@@ -108,6 +113,7 @@ public class ModelUtilsTest
      *   X -&gt; Y -&gt; A -&gt; B -&gt; C -&gt; D -&gt; E -&gt; F
      * </pre>
      */
+    @Test
     public void testShouldPreserveChildOrderingOfPluginsAfterParentMerge()
     {
         PluginContainer parent = new PluginContainer();
@@ -176,6 +182,7 @@ public class ModelUtilsTest
         return plugin;
     }
 
+    @Test
     public void testShouldInheritOnePluginWithExecution()
     {
         Plugin parent = new Plugin();
@@ -198,6 +205,7 @@ public class ModelUtilsTest
         assertEquals( 1, child.getExecutions().size() );
     }
 
+    @Test
     public void testShouldMergeInheritedPluginHavingExecutionWithLocalPlugin()
     {
         Plugin parent = new Plugin();
@@ -225,6 +233,7 @@ public class ModelUtilsTest
         assertEquals( 2, child.getExecutions().size() );
     }
 
+    @Test
     public void testShouldMergeOnePluginWithInheritExecutionWithoutDuplicatingPluginInList()
     {
         Plugin parent = new Plugin();
@@ -259,6 +268,7 @@ public class ModelUtilsTest
         assertEquals( 1, plugin.getExecutions().size() );
     }
 
+    @Test
     public void testShouldMergePluginWithDifferentExecutionFromParentWithoutDuplicatingPluginInList()
     {
         Plugin parent = new Plugin();
@@ -299,6 +309,7 @@ public class ModelUtilsTest
         assertEquals( 2, plugin.getExecutions().size() );
     }
 
+    @Test
     public void testShouldNOTMergeInheritedPluginHavingInheritEqualFalse()
     {
         Plugin parent = new Plugin();
@@ -326,6 +337,7 @@ public class ModelUtilsTest
      * Verifies MNG-1499: The order of the merged list should be the plugins specified by the parent followed by the
      * child list.
      */
+    @Test
     public void testShouldKeepOriginalPluginOrdering()
     {
         Plugin parentPlugin1 = new Plugin();
@@ -390,6 +402,7 @@ public class ModelUtilsTest
     /**
      * Verifies MNG-1499: The ordering of plugin executions should also be in the specified order.
      */
+    @Test
     public void testShouldKeepOriginalPluginExecutionOrdering()
     {
         Plugin parent = new Plugin();
@@ -439,6 +452,7 @@ public class ModelUtilsTest
         assertEquals( dep.getManagementKey(), dep2.getManagementKey() );
     }
 
+    @Test
     public void testShouldOverwritePluginConfigurationSubItemsByDefault()
         throws XmlPullParserException, IOException
     {
@@ -465,6 +479,7 @@ public class ModelUtilsTest
         assertEquals( "three", item.getValue() );
     }
 
+    @Test
     public void testShouldMergePluginConfigurationSubItemsWithMergeAttributeSet()
         throws XmlPullParserException, IOException
     {
@@ -496,6 +511,7 @@ public class ModelUtilsTest
         assertEquals( expected, actual );
     }
 
+    @Test
     public void testShouldNotMergePluginExecutionWhenExecInheritedIsFalseAndTreatAsInheritanceIsTrue()
     {
         String gid = "group";
@@ -533,9 +549,10 @@ public class ModelUtilsTest
         ModelUtils.mergePluginDefinitions( pChild, pParent, true );
 
         Map executionMap = pChild.getExecutionsAsMap();
-        assertNull( "test execution should not be inherited from parent.", executionMap.get( testId ) );
+        assertNull( executionMap.get( testId ), "test execution should not be inherited from parent." );
     }
 
+    @Test
     public void testShouldNotMergePluginExecutionWhenPluginInheritedIsFalseAndTreatAsInheritanceIsTrue()
     {
         String gid = "group";
@@ -573,9 +590,10 @@ public class ModelUtilsTest
         ModelUtils.mergePluginDefinitions( pChild, pParent, true );
 
         Map executionMap = pChild.getExecutionsAsMap();
-        assertNull( "test execution should not be inherited from parent.", executionMap.get( testId ) );
+        assertNull( executionMap.get( testId ), "test execution should not be inherited from parent." );
     }
 
+    @Test
     public void testShouldMergePluginExecutionWhenExecInheritedIsTrueAndTreatAsInheritanceIsTrue()
     {
         String gid = "group";
@@ -613,7 +631,7 @@ public class ModelUtilsTest
         ModelUtils.mergePluginDefinitions( pChild, pParent, true );
 
         Map executionMap = pChild.getExecutionsAsMap();
-        assertNotNull( "test execution should be inherited from parent.", executionMap.get( testId ) );
+        assertNotNull( executionMap.get( testId ), "test execution should be inherited from parent." );
     }
 
 }
diff --git a/maven-compat/src/test/java/org/apache/maven/project/ProjectClasspathTest.java b/maven-compat/src/test/java/org/apache/maven/project/ProjectClasspathTest.java
index 96f1feaa94..0cc449f863 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/ProjectClasspathTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/ProjectClasspathTest.java
@@ -20,20 +20,17 @@ package org.apache.maven.project;
  */
 
 import java.io.File;
-import java.util.Collections;
 
 import org.apache.maven.artifact.Artifact;
-import org.apache.maven.execution.DefaultMavenExecutionRequest;
-import org.apache.maven.execution.DefaultMavenExecutionResult;
-import org.apache.maven.execution.MavenSession;
-import org.apache.maven.repository.RepositorySystem;
 import org.apache.maven.repository.internal.DefaultArtifactDescriptorReader;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.eclipse.aether.RepositorySystemSession;
 import org.eclipse.aether.impl.ArtifactDescriptorReader;
 import org.eclipse.aether.impl.ArtifactResolver;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 public class ProjectClasspathTest
     extends AbstractMavenProjectTestCase
@@ -41,23 +38,12 @@ public class ProjectClasspathTest
     static final String dir = "projects/scope/";
 
     @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
             throws Exception
     {
         super.setUp();
 
-        ((DefaultPlexusContainer)getContainer())
-                .addPlexusInjector( Collections.emptyList(),
-                        binder ->  binder.requestInjection( this ) );
-
         ArtifactResolver resolver = lookup( ArtifactResolver.class, "classpath" );
         DefaultArtifactDescriptorReader pomReader = (DefaultArtifactDescriptorReader)lookup(ArtifactDescriptorReader.class);
         pomReader.setArtifactResolver( resolver );
@@ -71,6 +57,7 @@ public class ProjectClasspathTest
         return null;
     }
 
+    @Test
     public void testProjectClasspath()
         throws Exception
     {
@@ -80,7 +67,7 @@ public class ProjectClasspathTest
 
         Artifact artifact;
 
-        assertNotNull( "Test project can't be null!", project );
+        assertNotNull( project, "Test project can't be null!" );
 
         checkArtifactIdScope( project, "provided", "provided" );
         checkArtifactIdScope( project, "test", "test" );
@@ -90,53 +77,53 @@ public class ProjectClasspathTest
 
         // check all transitive deps of a test dependency are test, except test and provided which is skipped
         artifact = getArtifact( project, "maven-test-test", "scope-provided" );
-        assertNull( "Check no provided dependencies are transitive", artifact );
+        assertNull( artifact, "Check no provided dependencies are transitive" );
         artifact = getArtifact( project, "maven-test-test", "scope-test" );
-        assertNull( "Check no test dependencies are transitive", artifact );
+        assertNull( artifact, "Check no test dependencies are transitive" );
 
         artifact = getArtifact( project, "maven-test-test", "scope-compile" );
         assertNotNull( artifact );
 
         System.out.println( "a = " + artifact );
         System.out.println( "b = " + artifact.getScope() );
-        assertEquals( "Check scope", "test", artifact.getScope() );
+        assertEquals( "test", artifact.getScope(), "Check scope" );
         artifact = getArtifact( project, "maven-test-test", "scope-default" );
-        assertEquals( "Check scope", "test", artifact.getScope() );
+        assertEquals( "test", artifact.getScope(), "Check scope" );
         artifact = getArtifact( project, "maven-test-test", "scope-runtime" );
-        assertEquals( "Check scope", "test", artifact.getScope() );
+        assertEquals( "test", artifact.getScope(), "Check scope" );
 
         // check all transitive deps of a provided dependency are provided scope, except for test
         checkGroupIdScope( project, "provided", "maven-test-provided" );
         artifact = getArtifact( project, "maven-test-provided", "scope-runtime" );
-        assertEquals( "Check scope", "provided", artifact.getScope() );
+        assertEquals( "provided", artifact.getScope(), "Check scope" );
 
         // check all transitive deps of a runtime dependency are runtime scope, except for test
         checkGroupIdScope( project, "runtime", "maven-test-runtime" );
         artifact = getArtifact( project, "maven-test-runtime", "scope-runtime" );
-        assertEquals( "Check scope", "runtime", artifact.getScope() );
+        assertEquals( "runtime", artifact.getScope(), "Check scope" );
 
         // check all transitive deps of a compile dependency are compile scope, except for runtime and test
         checkGroupIdScope( project, "compile", "maven-test-compile" );
         artifact = getArtifact( project, "maven-test-compile", "scope-runtime" );
-        assertEquals( "Check scope", "runtime", artifact.getScope() );
+        assertEquals( "runtime", artifact.getScope(), "Check scope" );
 
         // check all transitive deps of a default dependency are compile scope, except for runtime and test
         checkGroupIdScope( project, "compile", "maven-test-default" );
         artifact = getArtifact( project, "maven-test-default", "scope-runtime" );
-        assertEquals( "Check scope", "runtime", artifact.getScope() );
+        assertEquals( "runtime", artifact.getScope(), "Check scope" );
     }
 
     private void checkGroupIdScope( MavenProject project, String scopeValue, String groupId )
     {
         Artifact artifact;
         artifact = getArtifact( project, groupId, "scope-compile" );
-        assertEquals( "Check scope", scopeValue, artifact.getScope() );
+        assertEquals( scopeValue, artifact.getScope(), "Check scope" );
         artifact = getArtifact( project, groupId, "scope-test" );
-        assertNull( "Check test dependency is not transitive", artifact );
+        assertNull( artifact, "Check test dependency is not transitive" );
         artifact = getArtifact( project, groupId, "scope-provided" );
-        assertNull( "Check provided dependency is not transitive", artifact );
+        assertNull( artifact, "Check provided dependency is not transitive" );
         artifact = getArtifact( project, groupId, "scope-default" );
-        assertEquals( "Check scope", scopeValue, artifact.getScope() );
+        assertEquals( scopeValue, artifact.getScope(), "Check scope" );
     }
 
     private void checkArtifactIdScope( MavenProject project, String scope, String scopeValue )
@@ -144,7 +131,7 @@ public class ProjectClasspathTest
         String artifactId = "scope-" + scope;
         Artifact artifact = getArtifact( project, "maven-test", artifactId );
         assertNotNull( artifact );
-        assertEquals( "Check scope", scopeValue, artifact.getScope() );
+        assertEquals( scopeValue, artifact.getScope(), "Check scope" );
     }
 
     private Artifact getArtifact( MavenProject project, String groupId, String artifactId )
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t00/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t00/ProjectInheritanceTest.java
index 98da0f5aa4..936424dbac 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t00/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t00/ProjectInheritanceTest.java
@@ -21,6 +21,9 @@ package org.apache.maven.project.inheritance.t00;
 
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * A test which demonstrates maven's recursive inheritance where
@@ -50,6 +53,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testProjectInheritance()
         throws Exception
     {
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t01/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t01/ProjectInheritanceTest.java
index 1aa749b598..8f8199e9c1 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t01/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t01/ProjectInheritanceTest.java
@@ -21,6 +21,9 @@ package org.apache.maven.project.inheritance.t01;
 
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * A test which demonstrates maven's recursive inheritance where
@@ -46,6 +49,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testProjectInheritance()
         throws Exception
     {
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t02/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t02/ProjectInheritanceTest.java
index 2b783431ce..61a393238b 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t02/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t02/ProjectInheritanceTest.java
@@ -26,8 +26,14 @@ import java.util.Map;
 
 import org.apache.maven.model.Build;
 import org.apache.maven.model.Plugin;
+import org.apache.maven.model.PluginExecution;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * A test which demonstrates maven's recursive inheritance where
@@ -57,6 +63,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testProjectInheritance()
         throws Exception
     {
@@ -134,33 +141,25 @@ public class ProjectInheritanceTest
         {
             String pluginArtifactId = plugin.getArtifactId();
 
-            if ( !validPluginCounts.containsKey( pluginArtifactId ) )
+            assertTrue( validPluginCounts.containsKey( pluginArtifactId ), "Illegal plugin found: " + pluginArtifactId );
+
+            if ( pluginArtifactId.equals( testPluginArtifactId ) )
             {
-                fail( "Illegal plugin found: " + pluginArtifactId );
+                testPlugin = plugin;
             }
-            else
-            {
-                if ( pluginArtifactId.equals( testPluginArtifactId ) )
-                {
-                    testPlugin = plugin;
-                }
 
-                Integer count = validPluginCounts.get( pluginArtifactId );
+            Integer count = validPluginCounts.get( pluginArtifactId );
 
-                if ( count > 0 )
-                {
-                    fail( "Multiple copies of plugin: " + pluginArtifactId + " found in POM." );
-                }
-                else
-                {
-                    count = count + 1;
+            assertEquals( 0, (int) count, "Multiple copies of plugin: " + pluginArtifactId + " found in POM." );
 
-                    validPluginCounts.put( pluginArtifactId, count );
-                }
-            }
+            count = count + 1;
+
+            validPluginCounts.put( pluginArtifactId, count );
         }
 
-        List executions = testPlugin.getExecutions();
+        assertNotNull( testPlugin );
+
+        List<PluginExecution> executions = testPlugin.getExecutions();
 
         assertEquals( 1, executions.size() );
     }
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t03/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t03/ProjectInheritanceTest.java
index edb6107ac9..3c658d8dbd 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t03/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t03/ProjectInheritanceTest.java
@@ -23,6 +23,9 @@ import java.io.File;
 
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * A test which demonstrates maven's recursive inheritance where
@@ -49,6 +52,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testProjectInheritance()
         throws Exception
     {
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t04/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t04/ProjectInheritanceTest.java
index ab775ec1d6..34a31d5e21 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t04/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t04/ProjectInheritanceTest.java
@@ -25,6 +25,11 @@ import java.util.Set;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Verifies the version of a dependency listed in a parent's
@@ -51,6 +56,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testDependencyManagementOverridesTransitiveDependencyVersion()
         throws Exception
     {
@@ -65,9 +71,9 @@ public class ProjectInheritanceTest
 
         assertEquals( pom0Basedir, project1.getParent().getBasedir() );
         Set set = project1.getArtifacts();
-        assertNotNull( "No artifacts", set );
-        assertTrue( "No Artifacts", set.size() > 0 );
-        assertTrue( "Set size should be 3, is " + set.size(), set.size() == 3 );
+        assertNotNull( set, "No artifacts" );
+        assertTrue( set.size() > 0, "No Artifacts" );
+        assertTrue( set.size() == 3, "Set size should be 3, is " + set.size() );
 
         for ( Object aSet : set )
         {
@@ -77,8 +83,8 @@ public class ProjectInheritanceTest
                     artifact.isOptional()
                         ? "true"
                         : "false" ) );
-            assertTrue( "Incorrect version for " + artifact.getDependencyConflictId(),
-                        artifact.getVersion().equals( "1.0" ) );
+            assertTrue( artifact.getVersion().equals( "1.0" ),
+                        "Incorrect version for " + artifact.getDependencyConflictId() );
         }
 
     }
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t05/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t05/ProjectInheritanceTest.java
index 1517157033..8af4a2fdf7 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t05/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t05/ProjectInheritanceTest.java
@@ -25,6 +25,11 @@ import java.util.Set;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * A test which demonstrates maven's dependency management
@@ -45,6 +50,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testDependencyManagement()
         throws Exception
     {
@@ -61,8 +67,8 @@ public class ProjectInheritanceTest
 
         assertEquals( pom0Basedir, project1.getParent().getBasedir() );
         Set set = project1.getArtifacts();
-        assertNotNull( "No artifacts", set );
-        assertTrue( "No Artifacts", set.size() > 0 );
+        assertNotNull( set, "No artifacts" );
+        assertTrue( set.size() > 0, "No Artifacts" );
 
         for ( Object aSet : set )
         {
@@ -70,8 +76,8 @@ public class ProjectInheritanceTest
             System.out.println(
                 "Artifact: " + artifact.getDependencyConflictId() + " " + artifact.getVersion() + " Scope: "
                     + artifact.getScope() );
-            assertTrue( "Incorrect version for " + artifact.getDependencyConflictId(),
-                        artifact.getVersion().equals( "1.0" ) );
+            assertTrue( artifact.getVersion().equals( "1.0" ),
+                        "Incorrect version for " + artifact.getDependencyConflictId() );
         }
 
     }
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t06/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t06/ProjectInheritanceTest.java
index 60e37719a2..bc37066a05 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t06/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t06/ProjectInheritanceTest.java
@@ -26,6 +26,11 @@ import java.util.Set;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * A test which demonstrates maven's dependency management
@@ -46,6 +51,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testDependencyManagement()
         throws Exception
     {
@@ -62,18 +68,18 @@ public class ProjectInheritanceTest
 
         assertEquals( pom0Basedir, project1.getParent().getBasedir() );
         Set set = project1.getArtifacts();
-        assertNotNull( "No artifacts", set );
-        assertTrue( "No Artifacts", set.size() > 0 );
+        assertNotNull( set, "No artifacts" );
+        assertTrue( set.size() > 0, "No Artifacts" );
         Iterator iter = set.iterator();
-        assertTrue( "Set size should be 4, is " + set.size(), set.size() == 4 );
+        assertTrue( set.size() == 4, "Set size should be 4, is " + set.size() );
 
         while ( iter.hasNext() )
         {
             Artifact artifact = (Artifact) iter.next();
             System.out.println( "Artifact: " + artifact.getDependencyConflictId() + " " + artifact.getVersion()
               + " Optional=" + ( artifact.isOptional() ? "true" : "false" ) );
-            assertTrue( "Incorrect version for " + artifact.getDependencyConflictId(),
-                        artifact.getVersion().equals( "1.0" ) );
+            assertTrue( artifact.getVersion().equals( "1.0" ),
+                        "Incorrect version for " + artifact.getDependencyConflictId() );
         }
 
     }
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t07/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t07/ProjectInheritanceTest.java
index b9685e39a6..87b07d3a80 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t07/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t07/ProjectInheritanceTest.java
@@ -25,6 +25,12 @@ import java.util.Set;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * A test which demonstrates maven's dependency management
@@ -45,6 +51,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testDependencyManagement()
         throws Exception
     {
@@ -61,21 +68,21 @@ public class ProjectInheritanceTest
         assertEquals( pom0Basedir, project1.getParent().getBasedir() );
         System.out.println("Project " + project1.getId() + " " + project1);
         Set set = project1.getArtifacts();
-        assertNotNull("No artifacts", set);
-        assertTrue("No Artifacts", set.size() > 0);
-        assertTrue("Set size should be 3, is " + set.size(), set.size() == 3 );
+        assertNotNull( set, "No artifacts" );
+        assertTrue( set.size() > 0, "No Artifacts" );
+        assertTrue( set.size() == 3, "Set size should be 3, is " + set.size() );
 
         for ( Object aSet : set )
         {
             Artifact artifact = (Artifact) aSet;
-            assertFalse( "", artifact.getArtifactId().equals( "t07-d" ) );
+            assertFalse( artifact.getArtifactId().equals( "t07-d" ) );
             System.out.println(
                 "Artifact: " + artifact.getDependencyConflictId() + " " + artifact.getVersion() + " Optional=" + (
                     artifact.isOptional()
                         ? "true"
                         : "false" ) );
-            assertTrue( "Incorrect version for " + artifact.getDependencyConflictId(),
-                        artifact.getVersion().equals( "1.0" ) );
+            assertTrue( artifact.getVersion().equals( "1.0" ),
+                        "Incorrect version for " + artifact.getDependencyConflictId() );
         }
     }
 }
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t08/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t08/ProjectInheritanceTest.java
index b0a7873bdf..c4562dc67e 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t08/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t08/ProjectInheritanceTest.java
@@ -26,6 +26,11 @@ import java.util.Set;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * A test which demonstrates maven's dependency management
@@ -46,6 +51,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testDependencyManagement()
         throws Exception
     {
@@ -63,18 +69,17 @@ public class ProjectInheritanceTest
         assertEquals( pom0Basedir, project1.getParent().getBasedir() );
         System.out.println( "Project " + project1.getId() + " " + project1 );
         Set set = project1.getArtifacts();
-        assertNotNull( "No artifacts", set );
-        assertTrue( "No Artifacts", set.size() > 0 );
+        assertNotNull( set, "No artifacts" );
+        assertTrue( set.size() > 0, "No Artifacts" );
         Iterator iter = set.iterator();
-        assertTrue( "Set size should be 4, is " + set.size(), set.size() == 4 );
+        assertTrue( set.size() == 4, "Set size should be 4, is " + set.size() );
 
         while ( iter.hasNext() )
         {
             Artifact artifact = (Artifact) iter.next();
             System.out.println( "Artifact: " + artifact.getDependencyConflictId() + " " + artifact.getVersion()
               + " Optional=" + ( artifact.isOptional() ? "true" : "false" ) );
-            assertTrue( "Incorrect version for " + artifact.getDependencyConflictId(),
-                        artifact.getVersion().equals( "1.0" ) );
+            assertTrue( artifact.getVersion().equals( "1.0" ), "Incorrect version for " + artifact.getDependencyConflictId() );
         }
 
     }
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t09/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t09/ProjectInheritanceTest.java
index 29cd2ea6ab..dcc4e8bf7e 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t09/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t09/ProjectInheritanceTest.java
@@ -23,6 +23,12 @@ import java.util.Map;
 
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Verifies exclusions listed in dependencyManagement are valid for
@@ -56,6 +62,7 @@ public class ProjectInheritanceTest
      * We should see that the resulting size of collected artifacts is two:
      * a &amp; b only.
      */
+    @Test
     public void testDependencyManagementExclusionsExcludeTransitively()
         throws Exception
     {
@@ -69,17 +76,17 @@ public class ProjectInheritanceTest
         MavenProject project0 = getProjectWithDependencies( pom0 );
         MavenProject project1 = getProjectWithDependencies( pom1 );
 
-        assertNotNull("Parent is null", project1.getParent());
+        assertNotNull( project1.getParent(), "Parent is null" );
         assertEquals( pom0Basedir, project1.getParent().getBasedir() );
         Map map = project1.getArtifactMap();
 
-        assertNotNull("No artifacts", map);
-        assertTrue("No Artifacts", map.size() > 0);
-        assertTrue("Set size should be 2, is " + map.size(), map.size() == 2);
+        assertNotNull( map, "No artifacts" );
+        assertTrue( map.size() > 0, "No Artifacts" );
+        assertTrue( map.size() == 2, "Set size should be 2, is " + map.size() );
 
-        assertTrue("maven-test:t09-a is not in the project", map.containsKey( "maven-test:t09-a" ));
-        assertTrue("maven-test:t09-b is not in the project", map.containsKey( "maven-test:t09-b" ));
-        assertFalse("maven-test:t09-c is in the project", map.containsKey( "maven-test:t09-c" ));
+        assertTrue( map.containsKey( "maven-test:t09-a" ), "maven-test:t09-a is not in the project" );
+        assertTrue( map.containsKey( "maven-test:t09-b" ), "maven-test:t09-b is not in the project" );
+        assertFalse( map.containsKey( "maven-test:t09-c" ), "maven-test:t09-c is in the project" );
     }
 
     /**
@@ -92,6 +99,7 @@ public class ProjectInheritanceTest
      *
      * @throws Exception
      */
+    @Test
     public void testDependencyManagementExclusionDoesNotOverrideGloballyForTransitives()
         throws Exception
     {
@@ -107,13 +115,13 @@ public class ProjectInheritanceTest
 
         assertEquals( pom0Basedir, project2.getParent().getBasedir() );
         Map map = project2.getArtifactMap();
-        assertNotNull( "No artifacts", map );
-        assertTrue( "No Artifacts", map.size() > 0 );
-        assertTrue( "Set size should be 4, is " + map.size(), map.size() == 4 );
+        assertNotNull( map, "No artifacts" );
+        assertTrue( map.size() > 0, "No Artifacts" );
+        assertTrue( map.size() == 4, "Set size should be 4, is " + map.size() );
 
-        assertTrue( "maven-test:t09-a is not in the project", map.containsKey( "maven-test:t09-a" ) );
-        assertTrue( "maven-test:t09-b is not in the project", map.containsKey( "maven-test:t09-b" ) );
-        assertTrue( "maven-test:t09-c is not in the project", map.containsKey( "maven-test:t09-c" ) );
-        assertTrue( "maven-test:t09-d is not in the project", map.containsKey( "maven-test:t09-d" ) );
+        assertTrue( map.containsKey( "maven-test:t09-a" ), "maven-test:t09-a is not in the project" );
+        assertTrue( map.containsKey( "maven-test:t09-b" ), "maven-test:t09-b is not in the project" );
+        assertTrue( map.containsKey( "maven-test:t09-c" ), "maven-test:t09-c is not in the project" );
+        assertTrue( map.containsKey( "maven-test:t09-d" ), "maven-test:t09-d is not in the project" );
     }
 }
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t10/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t10/ProjectInheritanceTest.java
index b24f70f39c..b1e74087ba 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t10/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t10/ProjectInheritanceTest.java
@@ -25,6 +25,11 @@ import java.util.Map;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Verifies scope inheritance of direct and transitive dependencies.
@@ -52,6 +57,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testDependencyManagementOverridesTransitiveDependencyVersion()
         throws Exception
     {
@@ -68,9 +74,9 @@ public class ProjectInheritanceTest
         assertEquals( pom0Basedir, project1.getParent().getBasedir() );
         System.out.println("Project " + project1.getId() + " " + project1);
         Map map = project1.getArtifactMap();
-        assertNotNull("No artifacts", map);
-        assertTrue("No Artifacts", map.size() > 0);
-        assertTrue("Set size should be 3, is " + map.size(), map.size() == 3);
+        assertNotNull( map, "No artifacts" );
+        assertTrue( map.size() > 0, "No Artifacts" );
+        assertTrue( map.size() == 3, "Set size should be 3, is " + map.size() );
 
         Artifact a = (Artifact) map.get("maven-test:t10-a");
         Artifact b = (Artifact) map.get("maven-test:t10-b");
@@ -82,13 +88,13 @@ public class ProjectInheritanceTest
 
         // inherited from depMgmt
         System.out.println(a.getScope());
-        assertTrue("Incorrect scope for " + a.getDependencyConflictId(), a.getScope().equals("test"));
+        assertTrue( a.getScope().equals("test"), "Incorrect scope for " + a.getDependencyConflictId() );
 
         // transitive dep, overridden b depMgmt
-        assertTrue("Incorrect scope for " + b.getDependencyConflictId(), b.getScope().equals("runtime"));
+        assertTrue( b.getScope().equals("runtime"), "Incorrect scope for " + b.getDependencyConflictId() );
 
         // direct dep, overrides depMgmt
-        assertTrue("Incorrect scope for " + c.getDependencyConflictId(), c.getScope().equals("runtime"));
+        assertTrue( c.getScope().equals("runtime"), "Incorrect scope for " + c.getDependencyConflictId() );
 
     }
 }
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t11/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t11/ProjectInheritanceTest.java
index d8a3926742..3f21d5e0ad 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t11/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t11/ProjectInheritanceTest.java
@@ -23,6 +23,10 @@ import java.io.File;
 
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 /**
  * Verifies scope of root project is preserved regardless of parent dependency management.
@@ -44,6 +48,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testDependencyManagementDoesNotOverrideScopeOfCurrentArtifact()
         throws Exception
     {
@@ -58,7 +63,7 @@ public class ProjectInheritanceTest
         MavenProject project1 = getProjectWithDependencies( pom1 );
 
         assertEquals( pom0Basedir, project1.getParent().getBasedir() );
-        assertNull( "dependencyManagement has overwritten the scope of the currently building child project",
-                    project1.getArtifact().getScope() );
+        assertNull( project1.getArtifact().getScope(),
+                    "dependencyManagement has overwritten the scope of the currently building child project" );
     }
 }
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t12/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t12/ProjectInheritanceTest.java
index 814e48719e..086d710eb2 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t12/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t12/ProjectInheritanceTest.java
@@ -25,6 +25,10 @@ import java.util.Map;
 import org.apache.maven.model.Plugin;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 /**
  * Verifies that plugin execution sections in the parent POM that have
@@ -43,6 +47,7 @@ public class ProjectInheritanceTest extends AbstractProjectInheritanceTestCase
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testFalsePluginExecutionInheritValue() throws Exception
     {
         File localRepo = getLocalRepositoryPath();
@@ -60,6 +65,6 @@ public class ProjectInheritanceTest extends AbstractProjectInheritanceTestCase
         assertNotNull( compilerPlugin );
 
         Map executionMap = compilerPlugin.getExecutionsAsMap();
-        assertNull( "Plugin execution: \'test\' should NOT exist in the compiler plugin specification for the child project!", executionMap.get( "test" ) );
+        assertNull( executionMap.get( "test" ), "Plugin execution: \'test\' should NOT exist in the compiler plugin specification for the child project!" );
     }
 }
\ No newline at end of file
diff --git a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t12scm/ProjectInheritanceTest.java b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t12scm/ProjectInheritanceTest.java
index 7627c1355d..82aee6c70f 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/inheritance/t12scm/ProjectInheritanceTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/inheritance/t12scm/ProjectInheritanceTest.java
@@ -23,6 +23,9 @@ import java.io.File;
 
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * Verifies SCM inheritance uses modules statement from parent.
@@ -43,6 +46,7 @@ public class ProjectInheritanceTest
     //
     // ----------------------------------------------------------------------
 
+    @Test
     public void testScmInfoCalculatedCorrectlyOnParentAndChildRead()
         throws Exception
     {
@@ -76,6 +80,7 @@ public class ProjectInheritanceTest
                                                                   + "/modules/p1" );
     }
 
+    @Test
     public void testScmInfoCalculatedCorrectlyOnChildOnlyRead()
         throws Exception
     {
diff --git a/maven-compat/src/test/java/org/apache/maven/project/path/DefaultPathTranslatorTest.java b/maven-compat/src/test/java/org/apache/maven/project/path/DefaultPathTranslatorTest.java
index b19ef99683..022ccd5592 100644
--- a/maven-compat/src/test/java/org/apache/maven/project/path/DefaultPathTranslatorTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/project/path/DefaultPathTranslatorTest.java
@@ -21,13 +21,14 @@ package org.apache.maven.project.path;
 
 import java.io.File;
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
 @SuppressWarnings( "deprecation" )
 public class DefaultPathTranslatorTest
-    extends TestCase
 {
 
+    @Test
     public void testAlignToBasedirWhereBasedirExpressionIsTheCompleteValue()
     {
         File basedir = new File( System.getProperty( "java.io.tmpdir" ), "test" ).getAbsoluteFile();
@@ -37,6 +38,7 @@ public class DefaultPathTranslatorTest
         assertEquals( basedir.getAbsolutePath(), aligned );
     }
 
+    @Test
     public void testAlignToBasedirWhereBasedirExpressionIsTheValuePrefix()
     {
         File basedir = new File( System.getProperty( "java.io.tmpdir" ), "test" ).getAbsoluteFile();
@@ -46,6 +48,7 @@ public class DefaultPathTranslatorTest
         assertEquals( new File( basedir, "dir" ).getAbsolutePath(), aligned );
     }
 
+    @Test
     public void testUnalignToBasedirWherePathEqualsBasedir()
     {
         File basedir = new File( System.getProperty( "java.io.tmpdir" ), "test" ).getAbsoluteFile();
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/DefaultMirrorSelectorTest.java b/maven-compat/src/test/java/org/apache/maven/repository/DefaultMirrorSelectorTest.java
index 5735db0ec5..97687e3207 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/DefaultMirrorSelectorTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/DefaultMirrorSelectorTest.java
@@ -21,9 +21,9 @@ package org.apache.maven.repository;
 
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.artifact.repository.DefaultArtifactRepository;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertFalse;
 
 public class DefaultMirrorSelectorTest
 {
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/LegacyRepositorySystemTest.java b/maven-compat/src/test/java/org/apache/maven/repository/LegacyRepositorySystemTest.java
index 65dbd892a1..eb56bc8590 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/LegacyRepositorySystemTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/LegacyRepositorySystemTest.java
@@ -17,7 +17,6 @@ package org.apache.maven.repository;
 
 import java.io.File;
 import java.util.Arrays;
-import java.util.Collections;
 import java.util.List;
 
 import org.apache.maven.artifact.Artifact;
@@ -32,16 +31,18 @@ import org.apache.maven.model.Dependency;
 import org.apache.maven.model.Repository;
 import org.apache.maven.model.RepositoryPolicy;
 import org.apache.maven.plugin.LegacySupport;
-import org.apache.maven.project.ProjectBuilder;
-import org.apache.maven.repository.RepositorySystem;
 import org.apache.maven.repository.legacy.LegacyRepositorySystem;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
+import org.apache.maven.test.PlexusTestCase;
 import org.eclipse.aether.DefaultRepositorySystemSession;
 import org.eclipse.aether.internal.impl.SimpleLocalRepositoryManagerFactory;
 import org.eclipse.aether.repository.LocalRepository;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import javax.inject.Inject;
 
@@ -58,25 +59,6 @@ public class LegacyRepositorySystemTest
     @Inject
     private ResolutionErrorHandler resolutionErrorHandler;
 
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp()
-            throws Exception
-    {
-        super.setUp();
-
-        ((DefaultPlexusContainer)getContainer())
-                .addPlexusInjector( Collections.emptyList(),
-                        binder ->  binder.requestInjection( this ) );
-    }
-
     protected List<ArtifactRepository> getRemoteRepositories()
         throws Exception
     {
@@ -104,6 +86,7 @@ public class LegacyRepositorySystemTest
         return repositorySystem.createLocalRepository( repoDir );
     }
 
+    @Test
     public void testThatASystemScopedDependencyIsNotResolvedFromRepositories()
         throws Exception
     {
@@ -186,6 +169,7 @@ public class LegacyRepositorySystemTest
         }
     }
 
+    @Test
     public void testLocalRepositoryBasedir()
         throws Exception
     {
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/MirrorProcessorTest.java b/maven-compat/src/test/java/org/apache/maven/repository/MirrorProcessorTest.java
index 8492f7bcad..443bc44135 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/MirrorProcessorTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/MirrorProcessorTest.java
@@ -20,17 +20,21 @@ package org.apache.maven.repository;
  */
 
 import java.util.Arrays;
-import java.util.Collections;
 import java.util.List;
 
+import org.apache.maven.test.PlexusTestCase;
 import org.apache.maven.artifact.repository.ArtifactRepository;
-import org.apache.maven.repository.legacy.repository.ArtifactRepositoryFactory;
 import org.apache.maven.artifact.repository.layout.DefaultRepositoryLayout;
+import org.apache.maven.repository.legacy.repository.ArtifactRepositoryFactory;
 import org.apache.maven.settings.Mirror;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import javax.inject.Inject;
 
@@ -39,28 +43,11 @@ public class MirrorProcessorTest
 {
     @Inject
     private DefaultMirrorSelector mirrorSelector;
+
     @Inject
     private ArtifactRepositoryFactory repositorySystem;
 
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp()
-            throws Exception
-    {
-        super.setUp();
-
-        ((DefaultPlexusContainer)getContainer())
-                .addPlexusInjector( Collections.emptyList(),
-                        binder ->  binder.requestInjection( this ) );
-    }
-
+    @Test
     public void testExternalURL()
     {
         assertTrue( DefaultMirrorSelector.isExternalRepo( getRepo( "foo", "http://somehost" ) ) );
@@ -83,6 +70,7 @@ public class MirrorProcessorTest
         assertFalse( DefaultMirrorSelector.isExternalRepo( getRepo( "foo", "" ) ) );
     }
 
+    @Test
     public void testMirrorLookup()
     {
         Mirror mirrorA = newMirror( "a", "a", "http://a" );
@@ -97,6 +85,7 @@ public class MirrorProcessorTest
         assertNull( mirrorSelector.getMirror( getRepo( "c", "http://c.c" ), mirrors ) );
     }
 
+    @Test
     public void testMirrorWildcardLookup()
     {
         Mirror mirrorA = newMirror( "a", "a", "http://a" );
@@ -112,6 +101,7 @@ public class MirrorProcessorTest
         assertSame( mirrorC, mirrorSelector.getMirror( getRepo( "c", "http://c.c" ), mirrors ) );
     }
 
+    @Test
     public void testMirrorStopOnFirstMatch()
     {
         // exact matches win first
@@ -140,6 +130,7 @@ public class MirrorProcessorTest
         assertSame( mirrorC2, mirrorSelector.getMirror( getRepo( "f", "http://f" ), mirrors ) );
     }
 
+    @Test
     public void testPatterns()
     {
         assertTrue( DefaultMirrorSelector.matchPattern( getRepo( "a" ), "*" ) );
@@ -176,6 +167,7 @@ public class MirrorProcessorTest
         assertFalse( DefaultMirrorSelector.matchPattern( getRepo( "d" ), "!a,!c*" ) );
     }
 
+    @Test
     public void testPatternsWithExternal()
     {
         assertTrue( DefaultMirrorSelector.matchPattern( getRepo( "a", "http://localhost" ), "*" ) );
@@ -190,6 +182,7 @@ public class MirrorProcessorTest
         assertTrue( DefaultMirrorSelector.matchPattern( getRepo( "c", "http://somehost" ), "!a,external:*" ) );
     }
 
+    @Test
     public void testLayoutPattern()
     {
         assertTrue( DefaultMirrorSelector.matchesLayout( "default", null ) );
@@ -209,6 +202,7 @@ public class MirrorProcessorTest
         assertFalse( DefaultMirrorSelector.matchesLayout( "default", "!default,*" ) );
     }
 
+    @Test
     public void testMirrorLayoutConsideredForMatching()
     {
         ArtifactRepository repo = getRepo( "a" );
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/legacy/DefaultUpdateCheckManagerTest.java b/maven-compat/src/test/java/org/apache/maven/repository/legacy/DefaultUpdateCheckManagerTest.java
index 1c5f34c3c7..e826505124 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/legacy/DefaultUpdateCheckManagerTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/legacy/DefaultUpdateCheckManagerTest.java
@@ -21,20 +21,32 @@ package org.apache.maven.repository.legacy;
 
 import java.io.File;
 
+import javax.inject.Inject;
+
 import org.apache.maven.artifact.AbstractArtifactComponentTestCase;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.factory.ArtifactFactory;
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.artifact.repository.metadata.ArtifactRepositoryMetadata;
 import org.apache.maven.artifact.repository.metadata.RepositoryMetadata;
-import org.apache.maven.repository.legacy.DefaultUpdateCheckManager;
 import org.codehaus.plexus.logging.Logger;
 import org.codehaus.plexus.logging.console.ConsoleLogger;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class DefaultUpdateCheckManagerTest
     extends AbstractArtifactComponentTestCase
 {
 
+    @Inject
+    private ArtifactFactory artifactFactory;
+
     DefaultUpdateCheckManager updateCheckManager;
 
     @Override
@@ -43,8 +55,9 @@ public class DefaultUpdateCheckManagerTest
         return "updateCheckManager";
     }
 
+    @BeforeEach
     @Override
-    protected void setUp()
+    public void setUp()
         throws Exception
     {
         super.setUp();
@@ -52,6 +65,7 @@ public class DefaultUpdateCheckManagerTest
         updateCheckManager = new DefaultUpdateCheckManager( new ConsoleLogger( Logger.LEVEL_DEBUG, "test" ) );
     }
 
+    @Test
     public void testArtifact() throws Exception
     {
         ArtifactRepository remoteRepository = remoteRepository();
@@ -81,6 +95,7 @@ public class DefaultUpdateCheckManagerTest
         assertFalse( updateCheckManager.getTouchfile( a ).exists() );
     }
 
+    @Test
     public void testMissingArtifact()
         throws Exception
     {
@@ -108,6 +123,7 @@ public class DefaultUpdateCheckManagerTest
                                                            updateCheckManager.getRepositoryKey( remoteRepository ) ) );
     }
 
+    @Test
     public void testPom() throws Exception
     {
         ArtifactRepository remoteRepository = remoteRepository();
@@ -137,6 +153,7 @@ public class DefaultUpdateCheckManagerTest
         assertFalse( updateCheckManager.getTouchfile( a ).exists() );
     }
 
+    @Test
     public void testMissingPom()
         throws Exception
     {
@@ -164,6 +181,7 @@ public class DefaultUpdateCheckManagerTest
                                                            updateCheckManager.getRepositoryKey( remoteRepository ) ) );
     }
 
+    @Test
     public void testMetadata() throws Exception
     {
         ArtifactRepository remoteRepository = remoteRepository();
@@ -191,6 +209,7 @@ public class DefaultUpdateCheckManagerTest
         assertNotNull( updateCheckManager.readLastUpdated( touchFile, updateCheckManager.getMetadataKey( remoteRepository, file ) ) );
     }
 
+    @Test
     public void testMissingMetadata() throws Exception
     {
         ArtifactRepository remoteRepository = remoteRepository();
@@ -216,10 +235,9 @@ public class DefaultUpdateCheckManagerTest
         assertNotNull( updateCheckManager.readLastUpdated( touchFile, updateCheckManager.getMetadataKey( remoteRepository, file ) ) );
     }
 
+    @Test
     public void testArtifactTouchFileName() throws Exception
     {
-        ArtifactFactory artifactFactory = (ArtifactFactory) lookup( ArtifactFactory.ROLE );
-
         ArtifactRepository localRepository = localRepository();
 
         Artifact a = artifactFactory.createArtifactWithClassifier( "groupdId", "a", "0.0.1-SNAPSHOT", "jar", null );
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/legacy/DefaultWagonManagerTest.java b/maven-compat/src/test/java/org/apache/maven/repository/legacy/DefaultWagonManagerTest.java
index 9ddbe32ab9..e6177c722a 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/legacy/DefaultWagonManagerTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/legacy/DefaultWagonManagerTest.java
@@ -22,7 +22,6 @@ package org.apache.maven.repository.legacy;
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 
 import org.apache.maven.artifact.Artifact;
@@ -30,25 +29,32 @@ import org.apache.maven.artifact.DefaultArtifact;
 import org.apache.maven.artifact.factory.ArtifactFactory;
 import org.apache.maven.artifact.metadata.ArtifactMetadata;
 import org.apache.maven.artifact.repository.ArtifactRepository;
-import org.apache.maven.repository.legacy.repository.ArtifactRepositoryFactory;
 import org.apache.maven.artifact.repository.ArtifactRepositoryPolicy;
 import org.apache.maven.artifact.repository.layout.ArtifactRepositoryLayout;
 import org.apache.maven.artifact.repository.layout.DefaultRepositoryLayout;
 import org.apache.maven.artifact.versioning.VersionRange;
+import org.apache.maven.repository.legacy.repository.ArtifactRepositoryFactory;
 import org.apache.maven.wagon.ResourceDoesNotExistException;
 import org.apache.maven.wagon.TransferFailedException;
 import org.apache.maven.wagon.UnsupportedProtocolException;
 import org.apache.maven.wagon.Wagon;
-import org.apache.maven.wagon.authorization.AuthorizationException;
 import org.apache.maven.wagon.events.TransferEvent;
 import org.apache.maven.wagon.events.TransferListener;
 import org.apache.maven.wagon.observers.AbstractTransferListener;
 import org.apache.maven.wagon.observers.Debug;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
+import org.apache.maven.test.PlexusTestCase;
 import org.codehaus.plexus.util.FileUtils;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import javax.inject.Inject;
 
@@ -69,25 +75,7 @@ public class DefaultWagonManagerTest
     @Inject
     private ArtifactRepositoryFactory artifactRepositoryFactory;
 
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp()
-            throws Exception
-    {
-        super.setUp();
-
-        ((DefaultPlexusContainer)getContainer())
-                .addPlexusInjector( Collections.emptyList(),
-                        binder ->  binder.requestInjection( this ) );
-    }
-
+    @Test
     public void testUnnecessaryRepositoryLookup()
         throws Exception
     {
@@ -123,46 +111,33 @@ public class DefaultWagonManagerTest
         assertEquals( 1, listener.events.size() );
     }
 
+    @Test
     public void testGetMissingJar() throws TransferFailedException, UnsupportedProtocolException, IOException
     {
         Artifact artifact = createTestArtifact( "target/test-data/get-missing-jar", "jar" );
 
         ArtifactRepository repo = createStringRepo();
 
-        try
-        {
-            wagonManager.getArtifact( artifact, repo, null, false );
-
-            fail();
-        }
-        catch ( ResourceDoesNotExistException e )
-        {
-            assertTrue( true );
-        }
+        assertThrows( ResourceDoesNotExistException.class,
+                () -> wagonManager.getArtifact( artifact, repo, null, false ) );
 
         assertFalse( artifact.getFile().exists() );
     }
 
+    @Test
     public void testGetMissingJarForced() throws TransferFailedException, UnsupportedProtocolException, IOException
     {
         Artifact artifact = createTestArtifact( "target/test-data/get-missing-jar", "jar" );
 
         ArtifactRepository repo = createStringRepo();
 
-        try
-        {
-            wagonManager.getArtifact( artifact, repo, null, true );
-
-            fail();
-        }
-        catch ( ResourceDoesNotExistException e )
-        {
-            assertTrue( true );
-        }
+        assertThrows( ResourceDoesNotExistException.class,
+                () -> wagonManager.getArtifact( artifact, repo, null, true ) );
 
         assertFalse( artifact.getFile().exists() );
     }
 
+    @Test
     public void testGetRemoteJar()
         throws TransferFailedException, ResourceDoesNotExistException, UnsupportedProtocolException, IOException
     {
@@ -240,6 +215,7 @@ public class DefaultWagonManagerTest
         return getRepo( id, "http://something" );
     }
 
+    @Test
     public void testDefaultWagonManager()
         throws Exception
     {
@@ -251,22 +227,13 @@ public class DefaultWagonManagerTest
 
         assertWagon( "string" );
 
-        try
-        {
-            assertWagon( "d" );
-
-            fail( "Expected :" + UnsupportedProtocolException.class.getName() );
-        }
-        catch ( UnsupportedProtocolException e )
-        {
-            // ok
-            assertTrue( true );
-        }
+        assertThrows( UnsupportedProtocolException.class, () -> assertWagon( "d" ) );
     }
 
     /**
      * Check that transfer listeners are properly removed after getArtifact and putArtifact
      */
+    @Test
     public void testWagonTransferListenerRemovedAfterGetArtifactAndPutArtifact()
         throws Exception
     {
@@ -277,25 +244,29 @@ public class DefaultWagonManagerTest
         wagon.addExpectedContent( repo.getLayout().pathOf( artifact ) + ".md5", "cd26d9e10ce691cc69aa2b90dcebbdac" );
 
         /* getArtifact */
-        assertFalse( "Transfer listener is registered before test",
-                     wagon.getTransferEventSupport().hasTransferListener( transferListener ) );
+        assertFalse( wagon.getTransferEventSupport().hasTransferListener( transferListener ),
+                    "Transfer listener is registered before test" );
         wagonManager.getArtifact( artifact, repo, transferListener, false );
-        assertFalse( "Transfer listener still registered after getArtifact",
-                     wagon.getTransferEventSupport().hasTransferListener( transferListener ) );
+        assertFalse( wagon.getTransferEventSupport().hasTransferListener( transferListener ),
+                    "Transfer listener still registered after getArtifact" );
 
         /* putArtifact */
         File sampleFile = getTestFile( "target/test-file" );
         FileUtils.fileWrite( sampleFile.getAbsolutePath(), "sample file" );
 
-        assertFalse( "Transfer listener is registered before test", wagon.getTransferEventSupport().hasTransferListener( transferListener ) );
+        assertFalse( wagon.getTransferEventSupport().hasTransferListener( transferListener ),
+                    "Transfer listener is registered before test" );
         wagonManager.putArtifact( sampleFile, artifact, repo, transferListener );
-        assertFalse( "Transfer listener still registered after putArtifact", wagon.getTransferEventSupport().hasTransferListener( transferListener ) );
+        assertFalse( wagon.getTransferEventSupport().hasTransferListener( transferListener ),
+                    "Transfer listener still registered after putArtifact" );
     }
 
     /**
      * Checks the verification of checksums.
      */
-    public void xtestChecksumVerification()
+    @Disabled
+    @Test
+    public void testChecksumVerification()
         throws Exception
     {
         ArtifactRepositoryPolicy policy = new ArtifactRepositoryPolicy( true, ArtifactRepositoryPolicy.UPDATE_POLICY_ALWAYS, ArtifactRepositoryPolicy.CHECKSUM_POLICY_FAIL );
@@ -312,84 +283,41 @@ public class DefaultWagonManagerTest
         wagon.clearExpectedContent();
         wagon.addExpectedContent( "path", "lower-case-checksum" );
         wagon.addExpectedContent( "path.sha1", "2a25dc564a3b34f68237fc849066cbc7bb7a36a1" );
-
-        try
-        {
-            wagonManager.getArtifact( artifact, repo, null, false );
-        }
-        catch ( ChecksumFailedException e )
-        {
-            fail( "Checksum verification did not pass: " + e.getMessage() );
-        }
+        wagonManager.getArtifact( artifact, repo, null, false );
 
         wagon.clearExpectedContent();
         wagon.addExpectedContent( "path", "upper-case-checksum" );
         wagon.addExpectedContent( "path.sha1", "B7BB97D7D0B9244398D9B47296907F73313663E6" );
-
-        try
-        {
-            wagonManager.getArtifact( artifact, repo, null, false );
-        }
-        catch ( ChecksumFailedException e )
-        {
-            fail( "Checksum verification did not pass: " + e.getMessage() );
-        }
+        wagonManager.getArtifact( artifact, repo, null, false );
 
         wagon.clearExpectedContent();
         wagon.addExpectedContent( "path", "expected-failure" );
         wagon.addExpectedContent( "path.sha1", "b7bb97d7d0b9244398d9b47296907f73313663e6" );
-
-        try
-        {
-            wagonManager.getArtifact( artifact, repo, null, false );
-            fail( "Checksum verification did not fail" );
-        }
-        catch ( ChecksumFailedException e )
-        {
-            // expected
-        }
+        assertThrows(
+                ChecksumFailedException.class, () ->
+                wagonManager.getArtifact( artifact, repo, null, false ),
+                "Checksum verification did not fail" );
 
         wagon.clearExpectedContent();
         wagon.addExpectedContent( "path", "lower-case-checksum" );
         wagon.addExpectedContent( "path.md5", "50b2cf50a103a965efac62b983035cac" );
-
-        try
-        {
-            wagonManager.getArtifact( artifact, repo, null, false );
-        }
-        catch ( ChecksumFailedException e )
-        {
-            fail( "Checksum verification did not pass: " + e.getMessage() );
-        }
+        wagonManager.getArtifact( artifact, repo, null, false );
 
         wagon.clearExpectedContent();
         wagon.addExpectedContent( "path", "upper-case-checksum" );
         wagon.addExpectedContent( "path.md5", "842F568FCCFEB7E534DC72133D42FFDC" );
-
-        try
-        {
-            wagonManager.getArtifact( artifact, repo, null, false );
-        }
-        catch ( ChecksumFailedException e )
-        {
-            fail( "Checksum verification did not pass: " + e.getMessage() );
-        }
+        wagonManager.getArtifact( artifact, repo, null, false );
 
         wagon.clearExpectedContent();
         wagon.addExpectedContent( "path", "expected-failure" );
         wagon.addExpectedContent( "path.md5", "b7bb97d7d0b9244398d9b47296907f73313663e6" );
-
-        try
-        {
-            wagonManager.getArtifact( artifact, repo, null, false );
-            fail( "Checksum verification did not fail" );
-        }
-        catch ( ChecksumFailedException e )
-        {
-            // expected
-        }
+        assertThrows(
+                ChecksumFailedException.class,
+                () -> wagonManager.getArtifact( artifact, repo, null, false ),
+                "Checksum verification did not fail" );
     }
 
+    @Test
     public void testPerLookupInstantiation()
         throws Exception
     {
@@ -406,7 +334,7 @@ public class DefaultWagonManagerTest
     {
         Wagon wagon = wagonManager.getWagon( protocol );
 
-        assertNotNull( "Check wagon, protocol=" + protocol, wagon );
+        assertNotNull( wagon, "Check wagon, protocol=" + protocol );
     }
 
     private final class ArtifactRepositoryLayoutStub
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/legacy/LegacyRepositorySystemTest.java b/maven-compat/src/test/java/org/apache/maven/repository/legacy/LegacyRepositorySystemTest.java
index d5f281fba5..61f16cceb1 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/legacy/LegacyRepositorySystemTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/legacy/LegacyRepositorySystemTest.java
@@ -17,16 +17,18 @@ package org.apache.maven.repository.legacy;
 
 import java.io.File;
 import java.util.Arrays;
-import java.util.Collections;
 
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.artifact.repository.Authentication;
 import org.apache.maven.repository.RepositorySystem;
 import org.apache.maven.settings.Server;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
+import org.apache.maven.test.PlexusTestCase;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 import javax.inject.Inject;
 
@@ -41,25 +43,7 @@ public class LegacyRepositorySystemTest
     @Inject
     private RepositorySystem repositorySystem;
 
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp()
-            throws Exception
-    {
-        super.setUp();
-
-        ((DefaultPlexusContainer)getContainer())
-                .addPlexusInjector( Collections.emptyList(),
-                        binder ->  binder.requestInjection( this ) );
-    }
-
+    @Test
     public void testThatLocalRepositoryWithSpacesIsProperlyHandled()
         throws Exception
     {
@@ -68,6 +52,7 @@ public class LegacyRepositorySystemTest
         assertEquals( basedir, new File( repo.getBasedir() ) );
     }
 
+    @Test
     public void testAuthenticationHandling()
     {
         Server server = new Server();
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/DefaultArtifactCollectorTest.java b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/DefaultArtifactCollectorTest.java
index 5d88702136..0ef67d9be4 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/DefaultArtifactCollectorTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/DefaultArtifactCollectorTest.java
@@ -19,6 +19,18 @@ package org.apache.maven.repository.legacy.resolver;
  * under the License.
  */
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import javax.inject.Inject;
+
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.factory.ArtifactFactory;
 import org.apache.maven.artifact.metadata.ArtifactMetadataRetrievalException;
@@ -37,19 +49,16 @@ import org.apache.maven.artifact.versioning.InvalidVersionSpecificationException
 import org.apache.maven.artifact.versioning.OverConstrainedVersionException;
 import org.apache.maven.artifact.versioning.VersionRange;
 import org.apache.maven.repository.legacy.metadata.MetadataResolutionRequest;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
+import org.apache.maven.test.PlexusTestCase;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.LinkedHashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Test the default artifact collector.
@@ -59,8 +68,10 @@ import java.util.Set;
 public class DefaultArtifactCollectorTest
     extends PlexusTestCase
 {
+    @Inject
     private LegacyArtifactCollector artifactCollector;
 
+    @Inject
     private ArtifactFactory artifactFactory;
 
     private ArtifactSpec projectArtifact;
@@ -69,72 +80,47 @@ public class DefaultArtifactCollectorTest
 
     private static final String GROUP_ID = "test";
 
+    @BeforeEach
     @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp()
+    public void setUp()
         throws Exception
     {
         super.setUp();
 
         source = new Source();
-        artifactFactory = (ArtifactFactory) lookup( ArtifactFactory.ROLE );
-        artifactCollector = lookup( LegacyArtifactCollector.class );
 
         projectArtifact = createArtifactSpec( "project", "1.0", null );
     }
 
-    @Override
-    protected void tearDown()
-        throws Exception
-    {
-        artifactCollector = null;
-        artifactFactory = null;
-        super.tearDown();
-    }
-
-    // works, but we don't fail on cycles presently
-    public void disabledtestCircularDependencyNotIncludingCurrentProject()
+    @Test
+    @Disabled("works, but we don't fail on cycles presently")
+    public void testCircularDependencyNotIncludingCurrentProject()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
         ArtifactSpec a = createArtifactSpec( "a", "1.0" );
         ArtifactSpec b = a.addDependency( "b", "1.0" );
         b.addDependency( "a", "1.0" );
-        try
-        {
-            collect( a );
-            fail( "Should have failed on cyclic dependency not involving project" );
-        }
-        catch ( CyclicDependencyException expected )
-        {
-            assertTrue( true );
-        }
+        assertThrows(
+                CyclicDependencyException.class,
+                () -> collect( a ),
+                "Should have failed on cyclic dependency not involving project" );
     }
 
-    // works, but we don't fail on cycles presently
-    public void disabledtestCircularDependencyIncludingCurrentProject()
+    @Test
+    @Disabled("works, but we don't fail on cycles presently")
+    public void testCircularDependencyIncludingCurrentProject()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
         ArtifactSpec a = createArtifactSpec( "a", "1.0" );
         ArtifactSpec b = a.addDependency( "b", "1.0" );
         b.addDependency( "project", "1.0" );
-        try
-        {
-            collect( a );
-            fail( "Should have failed on cyclic dependency involving project" );
-        }
-        catch ( CyclicDependencyException expected )
-        {
-            assertTrue( true );
-        }
+        assertThrows(
+                CyclicDependencyException.class,
+                () -> collect( a ),
+                "Should have failed on cyclic dependency not involving project" );
     }
 
+    @Test
     public void testResolveWithFilter()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -146,14 +132,15 @@ public class DefaultArtifactCollectorTest
         ArtifactSpec d = b.addDependency( "d", "4.0" );
 
         ArtifactResolutionResult res = collect( a );
-        assertEquals( "Check artifact list",
-                      createSet( new Object[] { a.artifact, b.artifact, c.artifact, d.artifact } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact, c.artifact, d.artifact } ), res.getArtifacts(),
+                    "Check artifact list" );
 
         ArtifactFilter filter = new ExclusionSetFilter( new String[] { "b" } );
         res = collect( a, filter );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, c.artifact } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, c.artifact } ), res.getArtifacts(), "Check artifact list" );
     }
 
+    @Test
     public void testResolveCorrectDependenciesWhenDifferentDependenciesOnNearest()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -167,12 +154,14 @@ public class DefaultArtifactCollectorTest
         ArtifactSpec f = c1.addDependency( "f", "1.0" );
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, e.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact, e.artifact, c1.artifact,
-            f.artifact } ), res.getArtifacts() );
-        assertEquals( "Check version", "1.0", getArtifact( "c", res.getArtifacts() ).getVersion() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact, e.artifact, c1.artifact, f.artifact } ), 
+                      res.getArtifacts(), "Check artifact list" );
+        assertEquals( "1.0", getArtifact( "c", res.getArtifacts() ).getVersion(), "Check version" );
     }
 
-    public void disabledtestResolveCorrectDependenciesWhenDifferentDependenciesOnNewest()
+    @Test
+    @Disabled
+    public void testResolveCorrectDependenciesWhenDifferentDependenciesOnNewest()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
         // TODO use newest conflict resolver
@@ -186,12 +175,13 @@ public class DefaultArtifactCollectorTest
         c1.addDependency( "f", "1.0" );
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, e.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact, e.artifact, c2.artifact,
-            d.artifact } ), res.getArtifacts() );
-        assertEquals( "Check version", "2.0", getArtifact( "c", res.getArtifacts() ).getVersion() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact, e.artifact, c2.artifact, d.artifact } ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "2.0", getArtifact( "c", res.getArtifacts() ).getVersion(), "Check version" );
     }
 
-    public void disabledtestResolveCorrectDependenciesWhenDifferentDependenciesOnNewestVersionReplaced()
+    @Test
+    @Disabled
+    public void testResolveCorrectDependenciesWhenDifferentDependenciesOnNewestVersionReplaced()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
         // TODO use newest conflict resolver
@@ -207,11 +197,12 @@ public class DefaultArtifactCollectorTest
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact } ) );
         Object[] artifacts = new Object[] { a.artifact, c.artifact, d1.artifact, b2.artifact, e.artifact, g.artifact };
-        assertEquals( "Check artifact list", createSet( artifacts ), res.getArtifacts() );
-        assertEquals( "Check version", "1.0", getArtifact( "d", res.getArtifacts() ).getVersion() );
-        assertEquals( "Check version", "2.0", getArtifact( "b", res.getArtifacts() ).getVersion() );
+        assertEquals( createSet( artifacts ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "1.0", getArtifact( "d", res.getArtifacts() ).getVersion(), "Check version" );
+        assertEquals( "2.0", getArtifact( "b", res.getArtifacts() ).getVersion(), "Check version" );
     }
 
+    @Test
     public void testResolveNearestNewestIsNearest()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -222,11 +213,11 @@ public class DefaultArtifactCollectorTest
         b.addDependency( "c", "2.0" );
 
         ArtifactResolutionResult res = collect( a );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact, c.artifact } ),
-                      res.getArtifacts() );
-        assertEquals( "Check version", "3.0", getArtifact( "c", res.getArtifacts() ).getVersion() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact, c.artifact } ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "3.0", getArtifact( "c", res.getArtifacts() ).getVersion(), "Check version" );
     }
 
+    @Test
     public void testResolveNearestOldestIsNearest()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -237,11 +228,11 @@ public class DefaultArtifactCollectorTest
         b.addDependency( "c", "3.0" );
 
         ArtifactResolutionResult res = collect( a );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact, c.artifact } ),
-                      res.getArtifacts() );
-        assertEquals( "Check version", "2.0", getArtifact( "c", res.getArtifacts() ).getVersion() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact, c.artifact } ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "2.0", getArtifact( "c", res.getArtifacts() ).getVersion(), "Check version" );
     }
 
+    @Test
     public void testResolveLocalNewestIsLocal()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -250,10 +241,11 @@ public class DefaultArtifactCollectorTest
         ArtifactSpec b = createArtifactSpec( "b", "3.0" );
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, b.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts() );
-        assertEquals( "Check version", "3.0", getArtifact( "b", res.getArtifacts() ).getVersion() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "3.0", getArtifact( "b", res.getArtifacts() ).getVersion(), "Check version" );
     }
 
+    @Test
     public void testResolveLocalOldestIsLocal()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -262,10 +254,11 @@ public class DefaultArtifactCollectorTest
         ArtifactSpec b = createArtifactSpec( "b", "2.0" );
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, b.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts() );
-        assertEquals( "Check version", "2.0", getArtifact( "b", res.getArtifacts() ).getVersion() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "2.0", getArtifact( "b", res.getArtifacts() ).getVersion(), "Check version" );
     }
 
+    @Test
     public void testResolveLocalWithNewerVersionButLesserScope()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -274,11 +267,12 @@ public class DefaultArtifactCollectorTest
         ArtifactSpec b = createArtifactSpec( "junit", "3.8.1", Artifact.SCOPE_TEST );
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, b.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts() );
-        assertEquals( "Check version", "3.8.1", getArtifact( "junit", res.getArtifacts() ).getVersion() );
-        assertEquals( "Check artifactScope", Artifact.SCOPE_TEST, getArtifact( "junit", res.getArtifacts() ).getScope() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "3.8.1", getArtifact( "junit", res.getArtifacts() ).getVersion(), "Check version" );
+        assertEquals( Artifact.SCOPE_TEST, getArtifact( "junit", res.getArtifacts() ).getScope(), "Check artifactScope" );
     }
 
+    @Test
     public void testResolveLocalWithNewerVersionButLesserScopeResolvedFirst()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -287,11 +281,12 @@ public class DefaultArtifactCollectorTest
         a.addDependency( "junit", "3.7" );
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, b.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts() );
-        assertEquals( "Check version", "3.8.1", getArtifact( "junit", res.getArtifacts() ).getVersion() );
-        assertEquals( "Check artifactScope", Artifact.SCOPE_TEST, getArtifact( "junit", res.getArtifacts() ).getScope() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "3.8.1", getArtifact( "junit", res.getArtifacts() ).getVersion(), "Check version" );
+        assertEquals( Artifact.SCOPE_TEST, getArtifact( "junit", res.getArtifacts() ).getScope(), "Check artifactScope" );
     }
 
+    @Test
     public void testResolveNearestWithRanges()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -302,11 +297,11 @@ public class DefaultArtifactCollectorTest
         b.addDependency( "c", "[1.0,3.0]" );
 
         ArtifactResolutionResult res = collect( a );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact, c.artifact } ),
-                      res.getArtifacts() );
-        assertEquals( "Check version", "2.0", getArtifact( "c", res.getArtifacts() ).getVersion() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact, c.artifact } ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "2.0", getArtifact( "c", res.getArtifacts() ).getVersion(), "Check version" );
     }
 
+    @Test
     public void testResolveRangeWithManagedVersion()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -316,11 +311,11 @@ public class DefaultArtifactCollectorTest
         ArtifactSpec managedB = createArtifactSpec( "b", "5.0" );
 
         ArtifactResolutionResult res = collect( a, managedB.artifact );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, managedB.artifact } ),
-                      res.getArtifacts() );
-        assertEquals( "Check version", "5.0", getArtifact( "b", res.getArtifacts() ).getVersion() );
+        assertEquals( createSet( new Object[] { a.artifact, managedB.artifact } ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "5.0", getArtifact( "b", res.getArtifacts() ).getVersion(), "Check version" );
     }
 
+    @Test
     public void testCompatibleRanges()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -332,11 +327,11 @@ public class DefaultArtifactCollectorTest
 
         ArtifactResolutionResult res = collect( a );
 
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact, c.artifact } ),
-                      res.getArtifacts() );
-        assertEquals( "Check version", "2.5", getArtifact( "c", res.getArtifacts() ).getVersion() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact, c.artifact } ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "2.5", getArtifact( "c", res.getArtifacts() ).getVersion(), "Check version" );
     }
 
+    @Test
     public void testIncompatibleRanges()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -351,6 +346,7 @@ public class DefaultArtifactCollectorTest
         assertTrue( res.hasVersionRangeViolations() );
     }
 
+    @Test
     public void testUnboundedRangeWhenVersionUnavailable()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -364,6 +360,7 @@ public class DefaultArtifactCollectorTest
         assertTrue( res.hasVersionRangeViolations() );
     }
 
+    @Test
     public void testUnboundedRangeBelowLastRelease()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -375,10 +372,11 @@ public class DefaultArtifactCollectorTest
 
         ArtifactResolutionResult res = collect( a );
 
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, c.artifact } ), res.getArtifacts() );
-        assertEquals( "Check version", "2.0", getArtifact( "c", res.getArtifacts() ).getVersion() );
+        assertEquals( createSet( new Object[] { a.artifact, c.artifact } ), res.getArtifacts(), "Check artifact list" );
+        assertEquals( "2.0", getArtifact( "c", res.getArtifacts() ).getVersion(), "Check version" );
     }
 
+    @Test
     public void testUnboundedRangeAboveLastRelease()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -391,6 +389,7 @@ public class DefaultArtifactCollectorTest
         assertTrue( res.hasVersionRangeViolations() );
     }
 
+    @Test
     public void testResolveManagedVersion()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -401,9 +400,10 @@ public class DefaultArtifactCollectorTest
         Artifact modifiedB = createArtifactSpec( "b", "5.0", Artifact.SCOPE_RUNTIME ).artifact;
 
         ArtifactResolutionResult res = collect( a, managedVersion );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, modifiedB } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, modifiedB } ), res.getArtifacts(), "Check artifact list" );
     }
 
+    @Test
     public void testCollectChangesVersionOfOriginatingArtifactIfInDependencyManagementHasDifferentVersion()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -414,13 +414,14 @@ public class DefaultArtifactCollectorTest
 
         ArtifactResolutionResult result = collect( a, managedVersion );
 
-        assertEquals( "collect has modified version in originating artifact", "1.0", artifact.getVersion() );
+        assertEquals( "1.0", artifact.getVersion(), "collect has modified version in originating artifact" );
 
         Artifact resolvedArtifact = result.getArtifacts().iterator().next();
 
-        assertEquals( "Resolved version don't match original artifact version", "1.0", resolvedArtifact.getVersion() );
+        assertEquals( "1.0", resolvedArtifact.getVersion(), "Resolved version don't match original artifact version" );
     }
 
+    @Test
     public void testResolveCompileScopeOverTestScope()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -432,13 +433,14 @@ public class DefaultArtifactCollectorTest
         Artifact modifiedC = createArtifactSpec( "c", "3.0", Artifact.SCOPE_COMPILE ).artifact;
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, c.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, modifiedC } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, modifiedC } ), res.getArtifacts(), "Check artifact list" );
         Artifact artifact = getArtifact( "c", res.getArtifacts() );
         // local wins now, and irrelevant if not local as test/provided aren't transitive
-        // assertEquals( "Check artifactScope", Artifact.SCOPE_COMPILE, artifact.getArtifactScope() );
-        assertEquals( "Check artifactScope", Artifact.SCOPE_TEST, artifact.getScope() );
+        // assertEquals( Artifact.SCOPE_COMPILE, artifact.getArtifactScope(), "Check artifactScope" );
+        assertEquals( Artifact.SCOPE_TEST, artifact.getScope(), "Check artifactScope" );
     }
 
+    @Test
     public void testResolveRuntimeScopeOverTestScope()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -450,13 +452,14 @@ public class DefaultArtifactCollectorTest
         Artifact modifiedC = createArtifactSpec( "c", "3.0", Artifact.SCOPE_RUNTIME ).artifact;
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, c.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, modifiedC } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, modifiedC } ), res.getArtifacts(), "Check artifact list" );
         Artifact artifact = getArtifact( "c", res.getArtifacts() );
         // local wins now, and irrelevant if not local as test/provided aren't transitive
-        // assertEquals( "Check artifactScope", Artifact.SCOPE_RUNTIME, artifact.getArtifactScope() );
-        assertEquals( "Check artifactScope", Artifact.SCOPE_TEST, artifact.getScope() );
+        // assertEquals( Artifact.SCOPE_RUNTIME, artifact.getArtifactScope(), "Check artifactScope" );
+        assertEquals( Artifact.SCOPE_TEST, artifact.getScope(), "Check artifactScope" );
     }
 
+    @Test
     public void testResolveCompileScopeOverRuntimeScope()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -469,12 +472,12 @@ public class DefaultArtifactCollectorTest
         Artifact modifiedC = createArtifactSpec( "c", "3.0", Artifact.SCOPE_COMPILE ).artifact;
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { root.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, root.artifact, modifiedC } ),
-                      res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, root.artifact, modifiedC } ), res.getArtifacts(), "Check artifact list" );
         Artifact artifact = getArtifact( "c", res.getArtifacts() );
-        assertEquals( "Check artifactScope", Artifact.SCOPE_COMPILE, artifact.getScope() );
+        assertEquals( Artifact.SCOPE_COMPILE, artifact.getScope(), "Check artifactScope" );
     }
 
+    @Test
     public void testResolveCompileScopeOverProvidedScope()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -486,13 +489,14 @@ public class DefaultArtifactCollectorTest
         Artifact modifiedC = createArtifactSpec( "c", "3.0", Artifact.SCOPE_COMPILE ).artifact;
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, c.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, modifiedC } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, modifiedC } ), res.getArtifacts(), "Check artifact list" );
         Artifact artifact = getArtifact( "c", res.getArtifacts() );
         // local wins now, and irrelevant if not local as test/provided aren't transitive
-        // assertEquals( "Check artifactScope", Artifact.SCOPE_COMPILE, artifact.getArtifactScope() );
-        assertEquals( "Check artifactScope", Artifact.SCOPE_PROVIDED, artifact.getScope() );
+        // assertEquals( Artifact.SCOPE_COMPILE, artifact.getArtifactScope(), "Check artifactScope" );
+        assertEquals( Artifact.SCOPE_PROVIDED, artifact.getScope(), "Check artifactScope" );
     }
 
+    @Test
     public void testResolveRuntimeScopeOverProvidedScope()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -504,13 +508,14 @@ public class DefaultArtifactCollectorTest
         Artifact modifiedC = createArtifactSpec( "c", "3.0", Artifact.SCOPE_RUNTIME ).artifact;
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, c.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, modifiedC } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, modifiedC } ), res.getArtifacts(), "Check artifact list" );
         Artifact artifact = getArtifact( "c", res.getArtifacts() );
         // local wins now, and irrelevant if not local as test/provided aren't transitive
-        // assertEquals( "Check artifactScope", Artifact.SCOPE_RUNTIME, artifact.getArtifactScope() );
-        assertEquals( "Check artifactScope", Artifact.SCOPE_PROVIDED, artifact.getScope() );
+        // assertEquals( Artifact.SCOPE_RUNTIME, artifact.getArtifactScope(), "Check artifactScope" );
+        assertEquals( Artifact.SCOPE_PROVIDED, artifact.getScope(), "Check artifactScope" );
     }
 
+    @Test
     public void testProvidedScopeNotTransitive()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -519,9 +524,10 @@ public class DefaultArtifactCollectorTest
         b.addDependency( "c", "3.0", Artifact.SCOPE_PROVIDED );
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, b.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts(), "Check artifact list" );
     }
 
+    @Test
     public void testOptionalNotTransitive()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -530,9 +536,10 @@ public class DefaultArtifactCollectorTest
         b.addDependency( "c", "3.0", true );
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, b.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts(), "Check artifact list" );
     }
 
+    @Test
     public void testOptionalIncludedAtRoot()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -541,9 +548,10 @@ public class DefaultArtifactCollectorTest
         ArtifactSpec b = createArtifactSpec( "b", "1.0", true );
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, b.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts(), "Check artifact list" );
     }
 
+    @Test
     public void testScopeUpdate()
         throws InvalidVersionSpecificationException, ArtifactResolutionException
     {
@@ -643,19 +651,21 @@ public class DefaultArtifactCollectorTest
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, b.artifact } ), filter );
         Artifact artifact = getArtifact( "d", res.getArtifacts() );
-        assertNotNull( "MNG-1895 Dependency was not added to resolution", artifact );
-        assertEquals( "Check artifactScope", expectedScope, artifact.getScope() );
-        assertEquals( "Check version", expectedVersion, artifact.getVersion() );
+        assertNotNull( artifact, "MNG-1895 Dependency was not added to resolution" );
+        assertEquals( expectedScope, artifact.getScope(), "Check artifactScope" );
+        assertEquals( expectedVersion, artifact.getVersion(), "Check version" );
 
         ArtifactSpec d = createArtifactSpec( "d", "1.0" );
         res = collect( createSet( new Object[] { a.artifact, b.artifact, d.artifact } ), filter );
         artifact = getArtifact( "d", res.getArtifacts() );
-        assertNotNull( "MNG-1895 Dependency was not added to resolution", artifact );
-        assertEquals( "Check artifactScope", d.artifact.getScope(), artifact.getScope() );
-        assertEquals( "Check version", "1.0", artifact.getVersion() );
+        assertNotNull( artifact, "MNG-1895 Dependency was not added to resolution" );
+        assertEquals( d.artifact.getScope(), artifact.getScope(), "Check artifactScope" );
+        assertEquals( "1.0", artifact.getVersion(), "Check version" );
     }
 
-    public void disabledtestOptionalNotTransitiveButVersionIsInfluential()
+    @Test
+    @Disabled
+    public void testOptionalNotTransitiveButVersionIsInfluential()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
         ArtifactSpec a = createArtifactSpec( "a", "1.0" );
@@ -668,12 +678,12 @@ public class DefaultArtifactCollectorTest
         ArtifactSpec c = createArtifactSpec( "c", "3.0" );
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, b.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact, c.artifact, d.artifact,
-            e.artifact } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact, c.artifact, d.artifact, e.artifact } ), res.getArtifacts(), "Check artifact list" );
         Artifact artifact = getArtifact( "c", res.getArtifacts() );
-        assertEquals( "Check version", "3.0", artifact.getVersion() );
+        assertEquals( "3.0", artifact.getVersion(), "Check version" );
     }
 
+    @Test
     public void testTestScopeNotTransitive()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -682,9 +692,10 @@ public class DefaultArtifactCollectorTest
         b.addDependency( "c", "3.0", Artifact.SCOPE_TEST );
 
         ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact, b.artifact } ) );
-        assertEquals( "Check artifact list", createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts() );
+        assertEquals( createSet( new Object[] { a.artifact, b.artifact } ), res.getArtifacts(), "Check artifact list" );
     }
 
+    @Test
     public void testSnapshotNotIncluded()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -703,6 +714,8 @@ public class DefaultArtifactCollectorTest
          */
     }
 
+    @Test
+    @Disabled("that one does not work")
     public void testOverConstrainedVersionException()
         throws ArtifactResolutionException, InvalidVersionSpecificationException
     {
@@ -715,15 +728,11 @@ public class DefaultArtifactCollectorTest
 
         ArtifactSpec c = createArtifactSpec( "c", "3.2.1-v3235e" );
 
-        try
-        {
-            ArtifactResolutionResult res = collect( createSet( new Object[] { a.artifact } ) );
-        }
-        catch ( OverConstrainedVersionException e )
-        {
-            assertTrue( "Versions unordered", e.getMessage().contains( "[3.2.1-v3235e, 3.3.0-v3346]" ) );
-            assertTrue( "DependencyTrail unresolved", e.getMessage().contains( "Path to dependency:" ) );
-        }
+        OverConstrainedVersionException e = assertThrows(
+                OverConstrainedVersionException.class,
+                () -> collect( createSet( new Object[] { a.artifact } ) ) );
+        assertTrue( e.getMessage().contains( "[3.2.1-v3235e, 3.3.0-v3346]" ), "Versions unordered" );
+        assertTrue( e.getMessage().contains( "Path to dependency:" ), "DependencyTrail unresolved" );
     }
 
     private Artifact getArtifact( String id, Set artifacts )
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/AbstractConflictResolverTest.java b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/AbstractConflictResolverTest.java
index 54ae26a1f6..fbb2531a7b 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/AbstractConflictResolverTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/AbstractConflictResolverTest.java
@@ -19,20 +19,22 @@ package org.apache.maven.repository.legacy.resolver.conflict;
  * under the License.
  */
 
+import java.util.Collections;
+
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.factory.ArtifactFactory;
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.artifact.resolver.ResolutionNode;
 import org.apache.maven.artifact.versioning.InvalidVersionSpecificationException;
 import org.apache.maven.artifact.versioning.VersionRange;
-import org.apache.maven.repository.legacy.resolver.conflict.ConflictResolver;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
+import org.apache.maven.test.PlexusTestCase;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 
 import javax.inject.Inject;
-import java.util.Collections;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  * Provides a basis for testing conflict resolvers.
@@ -71,25 +73,17 @@ public abstract class AbstractConflictResolverTest
 
     // TestCase methods -------------------------------------------------------
 
+    /*
+     * @see junit.framework.TestCase#setUp()
+     */
+    @BeforeEach
     @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp()
+    public void setUp()
             throws Exception
     {
         super.setUp();
 
-        ((DefaultPlexusContainer)getContainer())
-                .addPlexusInjector( Collections.emptyList(),
-                        binder ->  binder.requestInjection( this ) );
-
-        conflictResolver = (ConflictResolver) lookup( ConflictResolver.ROLE, roleHint );
+        conflictResolver = lookup( ConflictResolver.ROLE, roleHint );
 
         a1 = createArtifact( "a", "1.0" );
         a2 = createArtifact( "a", "2.0" );
@@ -99,7 +93,9 @@ public abstract class AbstractConflictResolverTest
     /*
      * @see org.codehaus.plexus.PlexusTestCase#tearDown()
      */
-    protected void tearDown() throws Exception
+    @AfterEach
+    @Override
+    public void tearDown() throws Exception
     {
         a1 = null;
         a2 = null;
@@ -121,8 +117,8 @@ public abstract class AbstractConflictResolverTest
     {
         ResolutionNode resolvedNode = getConflictResolver().resolveConflict( actualNode1, actualNode2 );
 
-        assertNotNull( "Expected resolvable", resolvedNode );
-        assertEquals( "Resolution node", expectedNode, resolvedNode );
+        assertNotNull( resolvedNode, "Expected resolvable" );
+        assertEquals( expectedNode, resolvedNode, "Resolution node" );
     }
 
     protected Artifact createArtifact( String id, String version ) throws InvalidVersionSpecificationException
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/FarthestConflictResolverTest.java b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/FarthestConflictResolverTest.java
index 363c7a2481..7b46ee342d 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/FarthestConflictResolverTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/FarthestConflictResolverTest.java
@@ -20,6 +20,7 @@ package org.apache.maven.repository.legacy.resolver.conflict;
  */
 
 import org.apache.maven.artifact.resolver.ResolutionNode;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests <code>FarthestConflictResolver</code>.
@@ -47,6 +48,7 @@ public class FarthestConflictResolverTest
      * b:1.0 -&gt; a:2.0
      * </pre>
      */
+    @Test
     public void testDepth()
     {
         ResolutionNode a1n = createResolutionNode( a1);
@@ -63,6 +65,7 @@ public class FarthestConflictResolverTest
      * a:1.0
      * </pre>
      */
+    @Test
     public void testDepthReversed()
     {
         ResolutionNode b1n = createResolutionNode( b1  );
@@ -79,6 +82,7 @@ public class FarthestConflictResolverTest
      * a:2.0
      * </pre>
      */
+    @Test
     public void testEqual()
     {
         ResolutionNode a1n = createResolutionNode( a1 );
@@ -94,6 +98,7 @@ public class FarthestConflictResolverTest
      * a:1.0
      * </pre>
      */
+    @Test
     public void testEqualReversed()
     {
         ResolutionNode a2n = createResolutionNode( a2);
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/NearestConflictResolverTest.java b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/NearestConflictResolverTest.java
index 23683d56df..34026bc289 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/NearestConflictResolverTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/NearestConflictResolverTest.java
@@ -20,6 +20,7 @@ package org.apache.maven.repository.legacy.resolver.conflict;
  */
 
 import org.apache.maven.artifact.resolver.ResolutionNode;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests <code>NearestConflictResolver</code>.
@@ -47,6 +48,7 @@ public class NearestConflictResolverTest
      * b:1.0 -&gt; a:2.0
      * </pre>
      */
+    @Test
     public void testDepth()
     {
         ResolutionNode a1n = createResolutionNode( a1);
@@ -63,6 +65,7 @@ public class NearestConflictResolverTest
      * a:1.0
      * </pre>
      */
+    @Test
     public void testDepthReversed()
     {
         ResolutionNode b1n = createResolutionNode( b1 );
@@ -79,6 +82,7 @@ public class NearestConflictResolverTest
      * a:2.0
      * </pre>
      */
+    @Test
     public void testEqual()
     {
         ResolutionNode a1n = createResolutionNode( a1 );
@@ -94,6 +98,7 @@ public class NearestConflictResolverTest
      * a:1.0
      * </pre>
      */
+    @Test
     public void testEqualReversed()
     {
         ResolutionNode a2n = createResolutionNode( a2);
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/NewestConflictResolverTest.java b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/NewestConflictResolverTest.java
index 4cfffc67e1..874644a9c0 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/NewestConflictResolverTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/NewestConflictResolverTest.java
@@ -20,6 +20,7 @@ package org.apache.maven.repository.legacy.resolver.conflict;
  */
 
 import org.apache.maven.artifact.resolver.ResolutionNode;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests <code>NewestConflictResolver</code>.
@@ -47,6 +48,7 @@ public class NewestConflictResolverTest
      * b:1.0 -&gt; a:2.0
      * </pre>
      */
+    @Test
     public void testDepth()
     {
         ResolutionNode a1n = createResolutionNode( a1 );
@@ -63,6 +65,7 @@ public class NewestConflictResolverTest
      * a:1.0
      * </pre>
      */
+    @Test
     public void testDepthReversed()
     {
         ResolutionNode b1n = createResolutionNode( b1 );
@@ -79,6 +82,7 @@ public class NewestConflictResolverTest
      * a:2.0
      * </pre>
      */
+    @Test
     public void testEqual()
     {
         ResolutionNode a1n = createResolutionNode( a1 );
@@ -94,6 +98,7 @@ public class NewestConflictResolverTest
      * a:1.0
      * </pre>
      */
+    @Test
     public void testEqualReversed()
     {
         ResolutionNode a2n = createResolutionNode( a2 );
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/OldestConflictResolverTest.java b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/OldestConflictResolverTest.java
index 8744de2b05..76335f26af 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/OldestConflictResolverTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/legacy/resolver/conflict/OldestConflictResolverTest.java
@@ -20,6 +20,7 @@ package org.apache.maven.repository.legacy.resolver.conflict;
  */
 
 import org.apache.maven.artifact.resolver.ResolutionNode;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests <code>OldestConflictResolver</code>.
@@ -47,6 +48,7 @@ public class OldestConflictResolverTest
      * b:1.0 -&gt; a:2.0
      * </pre>
      */
+    @Test
     public void testDepth()
     {
         ResolutionNode a1n = createResolutionNode( a1 );
@@ -64,6 +66,7 @@ public class OldestConflictResolverTest
      * a:1.0
      * </pre>
      */
+    @Test
     public void testDepthReversed()
     {
         ResolutionNode b1n = createResolutionNode( b1 );
@@ -80,6 +83,7 @@ public class OldestConflictResolverTest
      * a:2.0
      * </pre>
      */
+    @Test
     public void testEqual()
     {
         ResolutionNode a1n = createResolutionNode( a1 );
@@ -95,6 +99,7 @@ public class OldestConflictResolverTest
      * a:1.0
      * </pre>
      */
+    @Test
     public void testEqualReversed()
     {
         ResolutionNode a2n = createResolutionNode( a2);
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultClasspathTransformationTest.java b/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultClasspathTransformationTest.java
index 339ce24c3e..ebe0fd50aa 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultClasspathTransformationTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultClasspathTransformationTest.java
@@ -15,14 +15,15 @@ package org.apache.maven.repository.metadata;
  * the License.
  */
 
+import javax.inject.Inject;
+
 import org.apache.maven.artifact.ArtifactScopeEnum;
-import org.apache.maven.repository.metadata.ArtifactMetadata;
-import org.apache.maven.repository.metadata.ClasspathContainer;
-import org.apache.maven.repository.metadata.ClasspathTransformation;
-import org.apache.maven.repository.metadata.MetadataGraph;
-import org.apache.maven.repository.metadata.MetadataGraphEdge;
-import org.apache.maven.repository.metadata.MetadataGraphVertex;
-import org.codehaus.plexus.PlexusTestCase;
+import org.apache.maven.test.PlexusTestCase;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.BeforeEach;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  *
@@ -33,6 +34,7 @@ import org.codehaus.plexus.PlexusTestCase;
 public class DefaultClasspathTransformationTest
 extends PlexusTestCase
 {
+    @Inject
     ClasspathTransformation transform;
 
     MetadataGraph graph;
@@ -42,11 +44,11 @@ extends PlexusTestCase
     MetadataGraphVertex v3;
     MetadataGraphVertex v4;
     //------------------------------------------------------------------------------------------
+	@BeforeEach
     @Override
-    protected void setUp() throws Exception
+    public void setUp() throws Exception
     {
         super.setUp();
-        transform = (ClasspathTransformation) lookup( ClasspathTransformation.ROLE, "default" );
 
         graph = new MetadataGraph( 4, 3 );
         /*
@@ -74,6 +76,7 @@ extends PlexusTestCase
         graph.addEdge(v3, v4, new MetadataGraphEdge( "1.2", true, ArtifactScopeEnum.test, null, 2, 2 ) );
     }
     //------------------------------------------------------------------------------------------
+	@Test
     public void testCompileClasspathTransform()
     throws Exception
     {
@@ -81,11 +84,12 @@ extends PlexusTestCase
 
         res = transform.transform( graph, ArtifactScopeEnum.compile, false );
 
-        assertNotNull("null classpath container after compile transform", res );
-        assertNotNull("null classpath after compile transform", res.getClasspath() );
-        assertEquals("compile classpath should have 3 entries", 3, res.getClasspath().size() );
+        assertNotNull( res, "null classpath container after compile transform" );
+        assertNotNull( res.getClasspath(), "null classpath after compile transform" );
+        assertEquals( 3, res.getClasspath().size(), "compile classpath should have 3 entries" );
     }
     //------------------------------------------------------------------------------------------
+	@Test
     public void testRuntimeClasspathTransform()
     throws Exception
     {
@@ -93,14 +97,15 @@ extends PlexusTestCase
 
         res = transform.transform( graph, ArtifactScopeEnum.runtime, false );
 
-        assertNotNull("null classpath container after runtime transform", res );
-        assertNotNull("null classpath after runtime transform", res.getClasspath() );
-        assertEquals("runtime classpath should have 4 entries", 4, res.getClasspath().size() );
+        assertNotNull( res, "null classpath container after runtime transform" );
+        assertNotNull( res.getClasspath(), "null classpath after runtime transform" );
+        assertEquals( 4, res.getClasspath().size(), "runtime classpath should have 4 entries" );
 
         ArtifactMetadata md = res.getClasspath().get(3);
-        assertEquals("runtime artifact version should be 1.1", "1.1", md.getVersion() );
+        assertEquals("1.1", md.getVersion(), "runtime artifact version should be 1.1" );
     }
     //------------------------------------------------------------------------------------------
+	@Test
     public void testTestClasspathTransform()
     throws Exception
     {
@@ -108,12 +113,12 @@ extends PlexusTestCase
 
         res = transform.transform( graph, ArtifactScopeEnum.test, false );
 
-        assertNotNull("null classpath container after runtime transform", res );
-        assertNotNull("null classpath after runtime transform", res.getClasspath() );
-        assertEquals("runtime classpath should have 4 entries", 4, res.getClasspath().size() );
+        assertNotNull( res, "null classpath container after test transform" );
+        assertNotNull( res.getClasspath(), "null classpath after test transform" );
+        assertEquals( 4, res.getClasspath().size(), "test classpath should have 4 entries" );
 
         ArtifactMetadata md = res.getClasspath().get(3);
-        assertEquals("test artifact version should be 1.2", "1.2", md.getVersion() );
+        assertEquals("1.2", md.getVersion(), "test artifact version should be 1.2" );
     }
     //------------------------------------------------------------------------------------------
     //------------------------------------------------------------------------------------------
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultGraphConflictResolutionPolicyTest.java b/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultGraphConflictResolutionPolicyTest.java
index 472f018b2a..ea4352e504 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultGraphConflictResolutionPolicyTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultGraphConflictResolutionPolicyTest.java
@@ -15,10 +15,10 @@ package org.apache.maven.repository.metadata;
  * the License.
  */
 
-import org.apache.maven.repository.metadata.GraphConflictResolutionPolicy;
-import org.apache.maven.repository.metadata.MetadataGraphEdge;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-import junit.framework.TestCase;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  *
@@ -27,33 +27,32 @@ import junit.framework.TestCase;
  */
 
 public class DefaultGraphConflictResolutionPolicyTest
-    extends TestCase
 {
     GraphConflictResolutionPolicy policy;
     MetadataGraphEdge e1;
     MetadataGraphEdge e2;
     MetadataGraphEdge e3;
     //------------------------------------------------------------------------------------------
-    @Override
-    protected void setUp() throws Exception
-    {
-        super.setUp();
-        policy = new DefaultGraphConflictResolutionPolicy();
-        e1 = new MetadataGraphEdge( "1.1", true, null, null, 2, 1 );
-        e2 = new MetadataGraphEdge( "1.2", true, null, null, 3, 2 );
-        e3 = new MetadataGraphEdge( "1.2", true, null, null, 2, 3 );
-    }
+	@BeforeEach
+    public void setUp() throws Exception
+	{
+		policy = new DefaultGraphConflictResolutionPolicy();
+    	e1 = new MetadataGraphEdge( "1.1", true, null, null, 2, 1 );
+    	e2 = new MetadataGraphEdge( "1.2", true, null, null, 3, 2 );
+    	e3 = new MetadataGraphEdge( "1.2", true, null, null, 2, 3 );
+	}
     //------------------------------------------------------------------------------------------
+	@Test
     public void testDefaultPolicy()
         throws Exception
     {
         MetadataGraphEdge res;
 
         res = policy.apply( e1, e2 );
-        assertEquals( "Wrong depth edge selected", "1.1", res.getVersion() );
+        assertEquals( "1.1", res.getVersion(), "Wrong depth edge selected" );
 
         res = policy.apply( e1, e3 );
-        assertEquals( "Wrong version edge selected", "1.2", res.getVersion() );
+        assertEquals( "1.2", res.getVersion(), "Wrong version edge selected" );
     }
     //------------------------------------------------------------------------------------------
     //------------------------------------------------------------------------------------------
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultGraphConflictResolverTest.java b/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultGraphConflictResolverTest.java
index ccd25b43bc..a41464a1c3 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultGraphConflictResolverTest.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/metadata/DefaultGraphConflictResolverTest.java
@@ -15,14 +15,15 @@ package org.apache.maven.repository.metadata;
  * the License.
  */
 
+import javax.inject.Inject;
+
 import org.apache.maven.artifact.ArtifactScopeEnum;
-import org.apache.maven.repository.metadata.ArtifactMetadata;
-import org.apache.maven.repository.metadata.GraphConflictResolver;
-import org.apache.maven.repository.metadata.MetadataGraph;
-import org.apache.maven.repository.metadata.MetadataGraphEdge;
-import org.apache.maven.repository.metadata.MetadataGraphVertex;
-import org.codehaus.plexus.PlexusTestCase;
-import org.codehaus.plexus.logging.Logger;
+import org.apache.maven.test.PlexusTestCase;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  *
@@ -33,8 +34,7 @@ import org.codehaus.plexus.logging.Logger;
 public class DefaultGraphConflictResolverTest
 extends PlexusTestCase
 {
-    Logger log;
-
+    @Inject
     GraphConflictResolver resolver;
 
     MetadataGraph graph;
@@ -44,11 +44,11 @@ extends PlexusTestCase
     MetadataGraphVertex v3;
     MetadataGraphVertex v4;
     //------------------------------------------------------------------------------------------
+	@BeforeEach
     @Override
-    protected void setUp() throws Exception
+    public void setUp() throws Exception
     {
         super.setUp();
-        resolver = (GraphConflictResolver) lookup( GraphConflictResolver.ROLE, "default" );
 
         /*
          *       v2
@@ -76,6 +76,7 @@ extends PlexusTestCase
         graph.addEdge(v3, v4, new MetadataGraphEdge( "1.2", true, ArtifactScopeEnum.provided, null, 2, 2 ) );
     }
     //------------------------------------------------------------------------------------------
+	@Test
     public void testCompileResolution()
     throws Exception
     {
@@ -83,24 +84,25 @@ extends PlexusTestCase
 
         res = resolver.resolveConflicts( graph, ArtifactScopeEnum.compile );
 
-        assertNotNull("null graph after resolver", res );
-        assertNotNull("no vertices in the resulting graph after resolver", res.getVertices() );
+        assertNotNull( res, "null graph after resolver" );
+        assertNotNull( res.getVertices(), "no vertices in the resulting graph after resolver" );
 
-        assertNotNull("no edges in the resulting graph after resolver", res.getExcidentEdges(v1) );
+        assertNotNull( res.getExcidentEdges(v1), "no edges in the resulting graph after resolver" );
 
-        assertEquals( "wrong # of vertices in the resulting graph after resolver", 4, res.getVertices().size() );
-        assertEquals( "wrong # of excident edges in the resulting graph entry after resolver", 2, res.getExcidentEdges(v1).size() );
+        assertEquals( 4, res.getVertices().size(), "wrong # of vertices in the resulting graph after resolver" );
+        assertEquals( 2, res.getExcidentEdges(v1).size(), "wrong # of excident edges in the resulting graph entry after resolver" );
 
-        assertEquals( "wrong # of v2 incident edges in the resulting graph after resolver", 1, res.getIncidentEdges(v2).size() );
-        assertEquals( "wrong edge v1-v2 in the resulting graph after resolver", "1.2", res.getIncidentEdges(v2).get(0).getVersion() );
+        assertEquals( 1, res.getIncidentEdges(v2).size(), "wrong # of v2 incident edges in the resulting graph after resolver" );
+        assertEquals( "1.2", res.getIncidentEdges(v2).get(0).getVersion(), "wrong edge v1-v2 in the resulting graph after resolver" );
 
-        assertEquals( "wrong # of edges v1-v3 in the resulting graph after resolver", 1, res.getIncidentEdges(v3).size() );
-        assertEquals( "wrong edge v1-v3 in the resulting graph after resolver", "1.1", res.getIncidentEdges(v3).get(0).getVersion() );
+        assertEquals( 1, res.getIncidentEdges(v3).size(), "wrong # of edges v1-v3 in the resulting graph after resolver" );
+        assertEquals( "1.1", res.getIncidentEdges(v3).get(0).getVersion(), "wrong edge v1-v3 in the resulting graph after resolver" );
 
-        assertEquals( "wrong # of edges v3-v4 in the resulting graph after resolver", 1, res.getIncidentEdges(v4).size() );
-        assertEquals( "wrong edge v3-v4 in the resulting graph after resolver", "1.2", res.getIncidentEdges(v4).get(0).getVersion() );
+        assertEquals( 1, res.getIncidentEdges(v4).size(), "wrong # of edges v3-v4 in the resulting graph after resolver" );
+        assertEquals( "1.2", res.getIncidentEdges(v4).get(0).getVersion(), "wrong edge v3-v4 in the resulting graph after resolver" );
     }
     //------------------------------------------------------------------------------------------
+	@Test
     public void testRuntimeResolution()
     throws Exception
     {
@@ -108,23 +110,24 @@ extends PlexusTestCase
 
         res = resolver.resolveConflicts( graph, ArtifactScopeEnum.runtime );
 
-        assertNotNull("null graph after resolver", res );
-        assertNotNull("no vertices in the resulting graph after resolver", res.getVertices() );
-        assertNotNull("no edges in the resulting graph after resolver", res.getExcidentEdges(v1) );
+        assertNotNull( res, "null graph after resolver" );
+        assertNotNull( res.getVertices(), "no vertices in the resulting graph after resolver" );
+        assertNotNull( res.getExcidentEdges(v1), "no edges in the resulting graph after resolver" );
 
-        assertEquals( "wrong # of vertices in the resulting graph after resolver", 4, res.getVertices().size() );
-        assertEquals( "wrong # of excident edges in the resulting graph entry after resolver", 2, res.getExcidentEdges(v1).size() );
+        assertEquals( 4, res.getVertices().size(), "wrong # of vertices in the resulting graph after resolver" );
+        assertEquals( 2, res.getExcidentEdges(v1).size(), "wrong # of excident edges in the resulting graph entry after resolver" );
 
-        assertEquals( "wrong # of v2 incident edges in the resulting graph after resolver", 1, res.getIncidentEdges(v2).size() );
-        assertEquals( "wrong edge v1-v2 in the resulting graph after resolver", "1.2", res.getIncidentEdges(v2).get(0).getVersion() );
+        assertEquals( 1, res.getIncidentEdges(v2).size(), "wrong # of v2 incident edges in the resulting graph after resolver" );
+        assertEquals( "1.2", res.getIncidentEdges(v2).get(0).getVersion(), "wrong edge v1-v2 in the resulting graph after resolver" );
 
-        assertEquals( "wrong # of edges v1-v3 in the resulting graph after resolver", 1, res.getIncidentEdges(v3).size() );
-        assertEquals( "wrong edge v1-v3 in the resulting graph after resolver", "1.1", res.getIncidentEdges(v3).get(0).getVersion() );
+        assertEquals( 1, res.getIncidentEdges(v3).size(), "wrong # of edges v1-v3 in the resulting graph after resolver" );
+        assertEquals( "1.1", res.getIncidentEdges(v3).get(0).getVersion(), "wrong edge v1-v3 in the resulting graph after resolver" );
 
-        assertEquals( "wrong # of edges v3-v4 in the resulting graph after resolver", 1, res.getIncidentEdges(v4).size() );
-        assertEquals( "wrong edge v3-v4 in the resulting graph after resolver", "1.1", res.getIncidentEdges(v4).get(0).getVersion() );
+        assertEquals( 1, res.getIncidentEdges(v4).size(), "wrong # of edges v3-v4 in the resulting graph after resolver" );
+        assertEquals( "1.1", res.getIncidentEdges(v4).get(0).getVersion(), "wrong edge v3-v4 in the resulting graph after resolver" );
     }
     //------------------------------------------------------------------------------------------
+	@Test
     public void testTestResolution()
     throws Exception
     {
@@ -132,21 +135,21 @@ extends PlexusTestCase
 
         res = resolver.resolveConflicts( graph, ArtifactScopeEnum.test );
 
-        assertNotNull("null graph after resolver", res );
-        assertNotNull("no vertices in the resulting graph after resolver", res.getVertices() );
-        assertNotNull("no edges in the resulting graph after resolver", res.getExcidentEdges(v1) );
+        assertNotNull( res, "null graph after resolver" );
+        assertNotNull( res.getVertices(), "no vertices in the resulting graph after resolver" );
+        assertNotNull( res.getExcidentEdges(v1), "no edges in the resulting graph after resolver" );
 
-        assertEquals( "wrong # of vertices in the resulting graph after resolver", 4, res.getVertices().size() );
-        assertEquals( "wrong # of excident edges in the resulting graph entry after resolver", 2, res.getExcidentEdges(v1).size() );
+        assertEquals( 4, res.getVertices().size(), "wrong # of vertices in the resulting graph after resolver" );
+        assertEquals( 2, res.getExcidentEdges(v1).size(), "wrong # of excident edges in the resulting graph entry after resolver" );
 
-        assertEquals( "wrong # of v2 incident edges in the resulting graph after resolver", 1, res.getIncidentEdges(v2).size() );
-        assertEquals( "wrong edge v1-v2 in the resulting graph after resolver", "1.2", res.getIncidentEdges(v2).get(0).getVersion() );
+        assertEquals( 1, res.getIncidentEdges(v2).size(), "wrong # of v2 incident edges in the resulting graph after resolver" );
+        assertEquals( "1.2", res.getIncidentEdges(v2).get(0).getVersion(), "wrong edge v1-v2 in the resulting graph after resolver" );
 
-        assertEquals( "wrong # of edges v1-v3 in the resulting graph after resolver", 1, res.getIncidentEdges(v3).size() );
-        assertEquals( "wrong edge v1-v3 in the resulting graph after resolver", "1.1", res.getIncidentEdges(v3).get(0).getVersion() );
+        assertEquals(  1, res.getIncidentEdges(v3).size(), "wrong # of edges v1-v3 in the resulting graph after resolver" );
+        assertEquals( "1.1", res.getIncidentEdges(v3).get(0).getVersion(), "wrong edge v1-v3 in the resulting graph after resolver" );
 
-        assertEquals( "wrong # of edges v3-v4 in the resulting graph after resolver", 1, res.getIncidentEdges(v4).size() );
-        assertEquals( "wrong edge v3-v4 in the resulting graph after resolver", "1.2", res.getIncidentEdges(v4).get(0).getVersion() );
+        assertEquals( 1, res.getIncidentEdges(v4).size(), "wrong # of edges v3-v4 in the resulting graph after resolver" );
+        assertEquals( "1.2", res.getIncidentEdges(v4).get(0).getVersion(), "wrong edge v3-v4 in the resulting graph after resolver" );
     }
     //------------------------------------------------------------------------------------------
     //------------------------------------------------------------------------------------------
diff --git a/maven-compat/src/test/java/org/apache/maven/repository/metadata/TestMetadataSource.java b/maven-compat/src/test/java/org/apache/maven/repository/metadata/TestMetadataSource.java
index fbb9035830..efec2e6ea7 100644
--- a/maven-compat/src/test/java/org/apache/maven/repository/metadata/TestMetadataSource.java
+++ b/maven-compat/src/test/java/org/apache/maven/repository/metadata/TestMetadataSource.java
@@ -19,6 +19,10 @@ package org.apache.maven.repository.metadata;
  * under the License.
  */
 
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.factory.ArtifactFactory;
 import org.apache.maven.artifact.repository.ArtifactRepository;
@@ -31,9 +35,6 @@ import org.apache.maven.repository.legacy.metadata.ResolutionGroup;
 import javax.inject.Inject;
 import javax.inject.Named;
 import javax.inject.Singleton;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
 
 @Named
 @Singleton
diff --git a/maven-core/pom.xml b/maven-core/pom.xml
index 661ae9bf12..4316ff7ed4 100644
--- a/maven-core/pom.xml
+++ b/maven-core/pom.xml
@@ -156,6 +156,11 @@ under the License.
       <artifactId>xmlunit-assertj</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-test-support</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>
diff --git a/maven-core/src/test/java/org/apache/maven/AbstractCoreMavenComponentTestCase.java b/maven-core/src/test/java/org/apache/maven/AbstractCoreMavenComponentTestCase.java
index de0f99beef..3b5b7a6bd4 100644
--- a/maven-core/src/test/java/org/apache/maven/AbstractCoreMavenComponentTestCase.java
+++ b/maven-core/src/test/java/org/apache/maven/AbstractCoreMavenComponentTestCase.java
@@ -22,7 +22,6 @@ package org.apache.maven;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Collections;
 import java.util.List;
 import java.util.Properties;
 
@@ -45,14 +44,14 @@ import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.ProjectBuildingRequest;
 import org.apache.maven.repository.RepositorySystem;
 import org.apache.maven.repository.internal.MavenRepositorySystemUtils;
+import org.apache.maven.test.PlexusTestCase;
 import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
 import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
 import org.codehaus.plexus.util.FileUtils;
 import org.eclipse.aether.DefaultRepositorySystemSession;
 import org.eclipse.aether.internal.impl.SimpleLocalRepositoryManagerFactory;
 import org.eclipse.aether.repository.LocalRepository;
+import org.junit.jupiter.api.BeforeEach;
 
 import javax.inject.Inject;
 
@@ -65,22 +64,6 @@ public abstract class AbstractCoreMavenComponentTestCase
     @Inject
     protected org.apache.maven.project.ProjectBuilder projectBuilder;
 
-    @Override
-    protected void setUp() throws Exception
-    {
-        super.setUp();
-        getContainer();
-    }
-
-    @Override
-    protected synchronized void setupContainer()
-    {
-        super.setupContainer();
-
-        ( (DefaultPlexusContainer) getContainer() ).addPlexusInjector( Collections.emptyList(),
-                binder -> binder.requestInjection( this ) );
-    }
-
     abstract protected String getProjectsDirectory();
 
     protected File getProject( String name )
diff --git a/maven-core/src/test/java/org/apache/maven/DefaultMavenTest.java b/maven-core/src/test/java/org/apache/maven/DefaultMavenTest.java
index c63acbc146..3a85ea4ad6 100644
--- a/maven-core/src/test/java/org/apache/maven/DefaultMavenTest.java
+++ b/maven-core/src/test/java/org/apache/maven/DefaultMavenTest.java
@@ -1,5 +1,3 @@
-package org.apache.maven;
-
 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
@@ -18,6 +16,12 @@ package org.apache.maven;
  * specific language governing permissions and limitations
  * under the License.
  */
+package org.apache.maven;
+
+import java.io.File;
+import java.nio.file.Files;
+
+import javax.inject.Inject;
 
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.DefaultArtifact;
@@ -25,13 +29,10 @@ import org.apache.maven.execution.MavenExecutionRequest;
 import org.apache.maven.execution.MavenExecutionResult;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.MavenProjectHelper;
-
-import java.io.File;
-import java.nio.file.Files;
-
-import javax.inject.Inject;
+import org.junit.jupiter.api.Test;
 
 import static java.util.Arrays.asList;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class DefaultMavenTest
     extends AbstractCoreMavenComponentTestCase
@@ -40,6 +41,14 @@ public class DefaultMavenTest
     @Inject
     private Maven maven;
 
+    @Override
+    protected String getProjectsDirectory()
+    {
+        return "src/test/projects/default-maven";
+    }
+
+
+    @Test
     public void testThatErrorDuringProjectDependencyGraphCreationAreStored()
             throws Exception
     {
@@ -50,13 +59,7 @@ public class DefaultMavenTest
         assertEquals( ProjectCycleException.class, result.getExceptions().get( 0 ).getClass() );
     }
 
-    @Override
-    protected String getProjectsDirectory()
-    {
-        return "src/test/projects/default-maven";
-    }
-
-
+    @Test
     public void testMavenProjectNoDuplicateArtifacts()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/MavenLifecycleParticipantTest.java b/maven-core/src/test/java/org/apache/maven/MavenLifecycleParticipantTest.java
index 7d02856640..13ff67a1d6 100644
--- a/maven-core/src/test/java/org/apache/maven/MavenLifecycleParticipantTest.java
+++ b/maven-core/src/test/java/org/apache/maven/MavenLifecycleParticipantTest.java
@@ -29,6 +29,10 @@ import org.apache.maven.model.Dependency;
 import org.apache.maven.project.MavenProject;
 import org.codehaus.plexus.PlexusContainer;
 import org.codehaus.plexus.component.repository.ComponentDescriptor;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
 
 public class MavenLifecycleParticipantTest
     extends AbstractCoreMavenComponentTestCase
@@ -109,6 +113,7 @@ public class MavenLifecycleParticipantTest
         return "src/test/projects/lifecycle-listener";
     }
 
+    @Test
     public void testDependencyInjection()
         throws Exception
     {
@@ -126,7 +131,7 @@ public class MavenLifecycleParticipantTest
         request.setGoals( Arrays.asList( "validate" ) );
         MavenExecutionResult result = maven.execute( request );
 
-        assertFalse( result.getExceptions().toString(), result.hasExceptions() );
+        assertFalse( result.hasExceptions(), result.getExceptions().toString() );
 
         MavenProject project = result.getProject();
 
@@ -138,6 +143,7 @@ public class MavenLifecycleParticipantTest
         assertEquals( INJECTED_ARTIFACT_ID, artifacts.get( 0 ).getArtifactId() );
     }
 
+    @Test
     public void testReactorDependencyInjection()
         throws Exception
     {
@@ -161,7 +167,7 @@ public class MavenLifecycleParticipantTest
         request.setGoals( Arrays.asList( "validate" ) );
         MavenExecutionResult result = maven.execute( request );
 
-        assertFalse( result.getExceptions().toString(), result.hasExceptions() );
+        assertFalse( result.hasExceptions(), result.getExceptions().toString() );
 
         List<String> order = new ArrayList<>();
         for ( MavenProject project : result.getTopologicallySortedProjects() )
diff --git a/maven-core/src/test/java/org/apache/maven/MavenTest.java b/maven-core/src/test/java/org/apache/maven/MavenTest.java
index 711199a9de..991e61d0a7 100644
--- a/maven-core/src/test/java/org/apache/maven/MavenTest.java
+++ b/maven-core/src/test/java/org/apache/maven/MavenTest.java
@@ -17,14 +17,9 @@ package org.apache.maven;
 
 
 import org.apache.maven.exception.ExceptionHandler;
-import org.apache.maven.exception.ExceptionSummary;
-import org.apache.maven.execution.MavenExecutionRequest;
-import org.apache.maven.execution.MavenExecutionResult;
-import org.codehaus.plexus.DefaultPlexusContainer;
+import org.junit.jupiter.api.Test;
 
 import javax.inject.Inject;
-import java.io.File;
-import java.util.Collections;
 
 public class MavenTest
     extends AbstractCoreMavenComponentTestCase
@@ -35,20 +30,12 @@ public class MavenTest
     @Inject
     private ExceptionHandler exceptionHandler;
 
-    @Override
-    protected synchronized void setupContainer()
-    {
-        super.setupContainer();
-
-        ( (DefaultPlexusContainer) getContainer() ).addPlexusInjector( Collections.emptyList(),
-                binder -> binder.requestInjection( this ) );
-    }
-
     protected String getProjectsDirectory()
     {
         return "src/test/projects/lifecycle-executor";
     }
 
+    @Test
     public void testLifecycleExecutionUsingADefaultLifecyclePhase()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/ProjectDependenciesResolverTest.java b/maven-core/src/test/java/org/apache/maven/ProjectDependenciesResolverTest.java
index d3b2eaa5b6..777bae5a8b 100644
--- a/maven-core/src/test/java/org/apache/maven/ProjectDependenciesResolverTest.java
+++ b/maven-core/src/test/java/org/apache/maven/ProjectDependenciesResolverTest.java
@@ -15,9 +15,6 @@ package org.apache.maven;
  * the License.
  */
 
-import static org.hamcrest.Matchers.endsWith;
-import static org.junit.Assert.assertThat;
-
 import java.io.File;
 import java.util.Collections;
 import java.util.List;
@@ -29,6 +26,11 @@ import org.apache.maven.execution.MavenSession;
 import org.apache.maven.project.MavenProject;
 
 import javax.inject.Inject;
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.Matchers.endsWith;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.hamcrest.MatcherAssert.assertThat;
 
 public class ProjectDependenciesResolverTest
     extends AbstractCoreMavenComponentTestCase
@@ -42,6 +44,7 @@ public class ProjectDependenciesResolverTest
     }
 
     /*
+    @Test
     public void testExclusionsInDependencies()
         throws Exception
     {
@@ -65,6 +68,7 @@ public class ProjectDependenciesResolverTest
     }
     */
 
+    @Test
     public void testSystemScopeDependencies()
         throws Exception
     {
@@ -79,6 +83,7 @@ public class ProjectDependenciesResolverTest
         assertEquals( 1, artifactDependencies.size() );
     }
 
+    @Test
     public void testSystemScopeDependencyIsPresentInTheCompileClasspathElements()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/artifact/handler/ArtifactHandlerTest.java b/maven-core/src/test/java/org/apache/maven/artifact/handler/ArtifactHandlerTest.java
index 2803d8d80a..6dba994a39 100644
--- a/maven-core/src/test/java/org/apache/maven/artifact/handler/ArtifactHandlerTest.java
+++ b/maven-core/src/test/java/org/apache/maven/artifact/handler/ArtifactHandlerTest.java
@@ -22,12 +22,16 @@ package org.apache.maven.artifact.handler;
 import java.io.File;
 import java.util.List;
 
-import org.codehaus.plexus.PlexusTestCase;
+import org.apache.maven.test.PlexusTestCase;
 import org.codehaus.plexus.util.FileUtils;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class ArtifactHandlerTest
     extends PlexusTestCase
 {
+    @Test
     public void testAptConsistency()
         throws Exception
     {
@@ -47,7 +51,7 @@ public class ArtifactHandlerTest
                 int i = 0;
                 for ( String col : cols )
                 {
-                    assertEquals( "Wrong column header", expected[i++], col.trim() );
+                    assertEquals( expected[i++], col.trim(), "Wrong column header" );
                 }
             }
             else if ( line.startsWith( "|" ) )
@@ -63,12 +67,12 @@ public class ArtifactHandlerTest
                 String includesDependencies = trimApt( cols[7] );
 
                 ArtifactHandler handler = lookup( ArtifactHandler.class, type );
-                assertEquals( type + " extension", handler.getExtension(), extension );
-                assertEquals( type + " packaging", handler.getPackaging(), packaging );
-                assertEquals( type + " classifier", handler.getClassifier(), classifier );
-                assertEquals( type + " language", handler.getLanguage(), language );
-                assertEquals( type + " addedToClasspath", handler.isAddedToClasspath() ? "true" : null, addedToClasspath );
-                assertEquals( type + " includesDependencies", handler.isIncludesDependencies() ? "true" : null, includesDependencies );
+                assertEquals( handler.getExtension(), extension, type + " extension" );
+                assertEquals( handler.getPackaging(), packaging, type + " packaging" );
+                assertEquals( handler.getClassifier(), classifier, type + " classifier" );
+                assertEquals( handler.getLanguage(), language, type + " language" );
+                assertEquals( handler.isAddedToClasspath() ? "true" : null, addedToClasspath, type + " addedToClasspath" );
+                assertEquals( handler.isIncludesDependencies() ? "true" : null, includesDependencies, type + " includesDependencies" );
             }
         }
     }
diff --git a/maven-core/src/test/java/org/apache/maven/artifact/resolver/filter/ExclusionArtifactFilterTest.java b/maven-core/src/test/java/org/apache/maven/artifact/resolver/filter/ExclusionArtifactFilterTest.java
index c504c96bb9..76b1654644 100644
--- a/maven-core/src/test/java/org/apache/maven/artifact/resolver/filter/ExclusionArtifactFilterTest.java
+++ b/maven-core/src/test/java/org/apache/maven/artifact/resolver/filter/ExclusionArtifactFilterTest.java
@@ -21,14 +21,14 @@ package org.apache.maven.artifact.resolver.filter;
 
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.model.Exclusion;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.BeforeEach;
 
 import java.util.Arrays;
 import java.util.Collections;
 
 import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertThat;
+import static org.hamcrest.MatcherAssert.assertThat;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
@@ -36,7 +36,7 @@ public class ExclusionArtifactFilterTest
 {
     private Artifact artifact;
 
-    @Before
+    @BeforeEach
     public void setup()
     {
         artifact = mock( Artifact.class );
diff --git a/maven-core/src/test/java/org/apache/maven/configuration/DefaultBeanConfiguratorTest.java b/maven-core/src/test/java/org/apache/maven/configuration/DefaultBeanConfiguratorTest.java
index a0588a2c9e..3dd3eff7f5 100644
--- a/maven-core/src/test/java/org/apache/maven/configuration/DefaultBeanConfiguratorTest.java
+++ b/maven-core/src/test/java/org/apache/maven/configuration/DefaultBeanConfiguratorTest.java
@@ -27,34 +27,32 @@ import org.apache.maven.configuration.internal.DefaultBeanConfigurator;
 import org.codehaus.plexus.util.xml.Xpp3Dom;
 import org.codehaus.plexus.util.xml.Xpp3DomBuilder;
 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-import junit.framework.TestCase;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * @author Benjamin Bentmann
  */
 public class DefaultBeanConfiguratorTest
-    extends TestCase
 {
 
     private BeanConfigurator configurator;
 
-    @Override
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
-        super.setUp();
-
         configurator = new DefaultBeanConfigurator();
     }
 
-    @Override
-    protected void tearDown()
+    @AfterEach
+    public void tearDown()
         throws Exception
     {
         configurator = null;
-
-        super.tearDown();
     }
 
     private Xpp3Dom toConfig( String xml )
@@ -69,6 +67,7 @@ public class DefaultBeanConfiguratorTest
         }
     }
 
+    @Test
     public void testMinimal()
         throws BeanConfigurationException
     {
@@ -84,6 +83,7 @@ public class DefaultBeanConfiguratorTest
         assertEquals( new File( "test" ), bean.file );
     }
 
+    @Test
     public void testPreAndPostProcessing()
         throws BeanConfigurationException
     {
@@ -111,6 +111,7 @@ public class DefaultBeanConfiguratorTest
         assertEquals( new File( "base/test" ).getAbsoluteFile(), bean.file );
     }
 
+    @Test
     public void testChildConfigurationElement()
         throws BeanConfigurationException
     {
diff --git a/maven-core/src/test/java/org/apache/maven/exception/DefaultExceptionHandlerTest.java b/maven-core/src/test/java/org/apache/maven/exception/DefaultExceptionHandlerTest.java
index 9fe6d4f30f..48cdb2fba1 100644
--- a/maven-core/src/test/java/org/apache/maven/exception/DefaultExceptionHandlerTest.java
+++ b/maven-core/src/test/java/org/apache/maven/exception/DefaultExceptionHandlerTest.java
@@ -30,9 +30,9 @@ import org.apache.maven.plugin.PluginContainerException;
 import org.apache.maven.plugin.PluginExecutionException;
 import org.apache.maven.plugin.descriptor.MojoDescriptor;
 import org.apache.maven.plugin.descriptor.PluginDescriptor;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * @author <a href="mailto:baerrach@apache.org">Barrie Treloar</a>
diff --git a/maven-core/src/test/java/org/apache/maven/execution/DefaultBuildResumptionAnalyzerTest.java b/maven-core/src/test/java/org/apache/maven/execution/DefaultBuildResumptionAnalyzerTest.java
index 6e037763e2..df4941c434 100644
--- a/maven-core/src/test/java/org/apache/maven/execution/DefaultBuildResumptionAnalyzerTest.java
+++ b/maven-core/src/test/java/org/apache/maven/execution/DefaultBuildResumptionAnalyzerTest.java
@@ -22,8 +22,8 @@ package org.apache.maven.execution;
 import org.apache.maven.lifecycle.LifecycleExecutionException;
 import org.apache.maven.model.Dependency;
 import org.apache.maven.project.MavenProject;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 import java.util.Optional;
 
@@ -40,7 +40,7 @@ public class DefaultBuildResumptionAnalyzerTest
 
     private MavenExecutionResult executionResult;
 
-    @Before
+    @BeforeEach
     public void before() {
         executionResult = new DefaultMavenExecutionResult();
     }
diff --git a/maven-core/src/test/java/org/apache/maven/execution/DefaultBuildResumptionDataRepositoryTest.java b/maven-core/src/test/java/org/apache/maven/execution/DefaultBuildResumptionDataRepositoryTest.java
index 697c74f9a0..e1e1fa41ac 100644
--- a/maven-core/src/test/java/org/apache/maven/execution/DefaultBuildResumptionDataRepositoryTest.java
+++ b/maven-core/src/test/java/org/apache/maven/execution/DefaultBuildResumptionDataRepositoryTest.java
@@ -21,9 +21,7 @@ package org.apache.maven.execution;
 
 import org.apache.maven.model.Build;
 import org.apache.maven.project.MavenProject;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.junit.MockitoJUnitRunner;
+import org.junit.jupiter.api.Test;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -34,7 +32,6 @@ import static org.hamcrest.Matchers.contains;
 import static org.hamcrest.Matchers.empty;
 import static org.hamcrest.Matchers.is;
 
-@RunWith( MockitoJUnitRunner.class )
 public class DefaultBuildResumptionDataRepositoryTest
 {
     private final DefaultBuildResumptionDataRepository repository = new DefaultBuildResumptionDataRepository();
diff --git a/maven-core/src/test/java/org/apache/maven/execution/DefaultMavenExecutionRequestPopulatorTest.java b/maven-core/src/test/java/org/apache/maven/execution/DefaultMavenExecutionRequestPopulatorTest.java
index bcc5895b7b..e57e79133f 100644
--- a/maven-core/src/test/java/org/apache/maven/execution/DefaultMavenExecutionRequestPopulatorTest.java
+++ b/maven-core/src/test/java/org/apache/maven/execution/DefaultMavenExecutionRequestPopulatorTest.java
@@ -8,7 +8,10 @@ import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.settings.Profile;
 import org.apache.maven.settings.Repository;
 import org.apache.maven.settings.Settings;
-import org.eclipse.sisu.launch.InjectedTestCase;
+import org.apache.maven.test.PlexusTestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /*
  * Licensed to the Apache Software Foundation (ASF) under one
@@ -30,11 +33,12 @@ import org.eclipse.sisu.launch.InjectedTestCase;
  */
 
 public class DefaultMavenExecutionRequestPopulatorTest
-    extends InjectedTestCase
+    extends PlexusTestCase
 {
     @Inject
     MavenExecutionRequestPopulator testee;
 
+    @Test
     public void testPluginRepositoryInjection()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/execution/DefaultMavenExecutionTest.java b/maven-core/src/test/java/org/apache/maven/execution/DefaultMavenExecutionTest.java
index 237362e451..9a363eeeaf 100644
--- a/maven-core/src/test/java/org/apache/maven/execution/DefaultMavenExecutionTest.java
+++ b/maven-core/src/test/java/org/apache/maven/execution/DefaultMavenExecutionTest.java
@@ -20,14 +20,14 @@ package org.apache.maven.execution;
  */
 import static org.hamcrest.Matchers.empty;
 import static org.hamcrest.Matchers.is;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNotSame;
-import static org.junit.Assert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.hamcrest.MatcherAssert.assertThat;
 
 import java.util.List;
 
 import org.apache.maven.project.MavenProject;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author Benjamin Bentmann
diff --git a/maven-core/src/test/java/org/apache/maven/execution/scope/internal/MojoExecutionScopeTest.java b/maven-core/src/test/java/org/apache/maven/execution/scope/internal/MojoExecutionScopeTest.java
index c7db866bff..0dda0501b0 100644
--- a/maven-core/src/test/java/org/apache/maven/execution/scope/internal/MojoExecutionScopeTest.java
+++ b/maven-core/src/test/java/org/apache/maven/execution/scope/internal/MojoExecutionScopeTest.java
@@ -16,17 +16,19 @@ package org.apache.maven.execution.scope.internal;
 
 import java.util.concurrent.atomic.AtomicInteger;
 
+import com.google.inject.Key;
 import org.apache.maven.execution.MojoExecutionEvent;
 import org.apache.maven.execution.scope.WeakMojoExecutionListener;
 import org.apache.maven.plugin.MojoExecutionException;
+import org.junit.jupiter.api.Test;
 
-import junit.framework.TestCase;
-
-import com.google.inject.Key;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class MojoExecutionScopeTest
-    extends TestCase
 {
+    @Test
     public void testNestedEnter()
         throws Exception
     {
@@ -48,16 +50,10 @@ public class MojoExecutionScopeTest
 
         scope.exit();
 
-        try
-        {
-            scope.exit();
-            fail();
-        }
-        catch ( IllegalStateException expected )
-        {
-        }
+        assertThrows( IllegalStateException.class, () -> scope.exit() );
     }
 
+    @Test
     public void testMultiKeyInstance()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/graph/DefaultGraphBuilderTest.java b/maven-core/src/test/java/org/apache/maven/graph/DefaultGraphBuilderTest.java
index 6a8320bae1..d2f29e2dee 100644
--- a/maven-core/src/test/java/org/apache/maven/graph/DefaultGraphBuilderTest.java
+++ b/maven-core/src/test/java/org/apache/maven/graph/DefaultGraphBuilderTest.java
@@ -37,12 +37,12 @@ import org.apache.maven.project.collector.MultiModuleCollectionStrategy;
 import org.apache.maven.project.collector.PomlessCollectionStrategy;
 import org.apache.maven.project.collector.ProjectsSelector;
 import org.apache.maven.project.collector.RequestPomCollectionStrategy;
+import org.apache.maven.test.Parameter;
+import org.apache.maven.test.Parameterized;
+import org.apache.maven.test.Parameters;
+import org.apache.maven.test.Test;
 import org.codehaus.plexus.util.StringUtils;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.junit.runners.Parameterized;
-import org.junit.runners.Parameterized.Parameters;
+import org.junit.jupiter.api.BeforeEach;
 
 import java.io.File;
 import java.util.ArrayList;
@@ -56,15 +56,15 @@ import static java.util.Arrays.asList;
 import static java.util.Collections.emptyList;
 import static java.util.Collections.singletonList;
 import static java.util.function.Function.identity;
-import static junit.framework.TestCase.assertEquals;
 import static org.apache.maven.execution.MavenExecutionRequest.REACTOR_MAKE_DOWNSTREAM;
 import static org.apache.maven.execution.MavenExecutionRequest.REACTOR_MAKE_UPSTREAM;
 import static org.apache.maven.graph.DefaultGraphBuilderTest.ScenarioBuilder.scenario;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.mockito.ArgumentMatchers.*;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
-@RunWith( Parameterized.class )
+@Parameterized
 public class DefaultGraphBuilderTest
 {
     /*
@@ -104,13 +104,20 @@ public class DefaultGraphBuilderTest
     private Map<String, MavenProject> artifactIdProjectMap;
 
     // Parameters for the test
-    private final String parameterDescription;
-    private final List<String> parameterSelectedProjects;
-    private final List<String> parameterExcludedProjects;
-    private final String parameterResumeFrom;
-    private final String parameterMakeBehavior;
-    private final List<String> parameterExpectedResult;
-    private final File parameterRequestedPom;
+    @Parameter( 0 )
+    private String parameterDescription;
+    @Parameter( 1 )
+    private List<String> parameterSelectedProjects;
+    @Parameter( 2 )
+    private List<String> parameterExcludedProjects;
+    @Parameter( 3 )
+    private String parameterResumeFrom;
+    @Parameter( 4 )
+    private String parameterMakeBehavior;
+    @Parameter( 5 )
+    private List<String> parameterExpectedResult;
+    @Parameter( 6 )
+    private File parameterRequestedPom;
 
     @Parameters(name = "{index}. {0}")
     public static Collection<Object[]> parameters()
@@ -191,17 +198,6 @@ public class DefaultGraphBuilderTest
         );
     }
 
-    public DefaultGraphBuilderTest( String description, List<String> selectedProjects, List<String> excludedProjects, String resumedFrom, String makeBehavior, List<String> expectedReactorProjects, File requestedPom )
-    {
-        this.parameterDescription = description;
-        this.parameterSelectedProjects = selectedProjects;
-        this.parameterExcludedProjects = excludedProjects;
-        this.parameterResumeFrom = resumedFrom;
-        this.parameterMakeBehavior = makeBehavior;
-        this.parameterExpectedResult = expectedReactorProjects;
-        this.parameterRequestedPom = requestedPom;
-    }
-
     @Test
     public void testGetReactorProjects()
     {
@@ -226,10 +222,10 @@ public class DefaultGraphBuilderTest
         List<MavenProject> expectedReactorProjects = parameterExpectedResult.stream()
                 .map( artifactIdProjectMap::get )
                 .collect( Collectors.toList());
-        assertEquals( parameterDescription, expectedReactorProjects, actualReactorProjects );
+        assertEquals( expectedReactorProjects, actualReactorProjects, parameterDescription );
     }
 
-    @Before
+    @BeforeEach
     public void before() throws Exception
     {
         graphBuilder = new DefaultGraphBuilder(
diff --git a/maven-core/src/test/java/org/apache/maven/graph/DefaultProjectDependencyGraphTest.java b/maven-core/src/test/java/org/apache/maven/graph/DefaultProjectDependencyGraphTest.java
index 6ce201d41d..94737fb514 100644
--- a/maven-core/src/test/java/org/apache/maven/graph/DefaultProjectDependencyGraphTest.java
+++ b/maven-core/src/test/java/org/apache/maven/graph/DefaultProjectDependencyGraphTest.java
@@ -14,21 +14,22 @@
  */
 package org.apache.maven.graph;
 
-import junit.framework.TestCase;
+import java.util.Arrays;
+import java.util.List;
+
 import org.apache.maven.execution.ProjectDependencyGraph;
 import org.apache.maven.model.Dependency;
 import org.apache.maven.project.DuplicateProjectException;
 import org.apache.maven.project.MavenProject;
 import org.codehaus.plexus.util.dag.CycleDetectedException;
+import org.junit.jupiter.api.Test;
 
-import java.util.Arrays;
-import java.util.List;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * @author Kristian Rosenvold
  */
 public class DefaultProjectDependencyGraphTest
-    extends TestCase
 {
 
     private final MavenProject aProject = createA();
@@ -45,6 +46,7 @@ public class DefaultProjectDependencyGraphTest
     private final MavenProject transitiveOnly =
         createProject( Arrays.asList( toDependency( depender3 ) ), "depender5" );
 
+    @Test
     public void testGetSortedProjects()
         throws DuplicateProjectException, CycleDetectedException
     {
@@ -54,6 +56,7 @@ public class DefaultProjectDependencyGraphTest
         assertEquals( depender1, sortedProjects.get( 1 ) );
     }
 
+    @Test
     public void testVerifyExpectedParentStructure()
         throws CycleDetectedException, DuplicateProjectException
     {
@@ -66,6 +69,7 @@ public class DefaultProjectDependencyGraphTest
         assertEquals( depender3, sortedProjects.get( 3 ) );
     }
 
+    @Test
     public void testVerifyThatDownstreamProjectsComeInSortedOrder()
         throws CycleDetectedException, DuplicateProjectException
     {
@@ -76,6 +80,7 @@ public class DefaultProjectDependencyGraphTest
         assertEquals( depender3, downstreamProjects.get( 2 ) );
     }
 
+    @Test
     public void testTransitivesInOrder()
         throws CycleDetectedException, DuplicateProjectException
     {
@@ -89,6 +94,7 @@ public class DefaultProjectDependencyGraphTest
         assertEquals( depender2, downstreamProjects.get( 3 ) );
     }
 
+    @Test
     public void testNonTransitivesInOrder()
         throws CycleDetectedException, DuplicateProjectException
     {
@@ -102,6 +108,7 @@ public class DefaultProjectDependencyGraphTest
         assertEquals( depender2, downstreamProjects.get( 3 ) );
     }
 
+    @Test
     public void testWithTransitiveOnly()
         throws CycleDetectedException, DuplicateProjectException
     {
@@ -115,6 +122,7 @@ public class DefaultProjectDependencyGraphTest
         assertEquals( depender2, downstreamProjects.get( 3 ) );
     }
 
+    @Test
     public void testWithMissingTransitiveOnly()
         throws CycleDetectedException, DuplicateProjectException
     {
@@ -127,6 +135,7 @@ public class DefaultProjectDependencyGraphTest
         assertEquals( depender2, downstreamProjects.get( 2 ) );
     }
 
+    @Test
     public void testGetUpstreamProjects()
         throws CycleDetectedException, DuplicateProjectException
     {
diff --git a/maven-core/src/test/java/org/apache/maven/internal/aether/ConsumerModelSourceTransformerTest.java b/maven-core/src/test/java/org/apache/maven/internal/aether/ConsumerModelSourceTransformerTest.java
index 0f1f634f4e..50506239fb 100644
--- a/maven-core/src/test/java/org/apache/maven/internal/aether/ConsumerModelSourceTransformerTest.java
+++ b/maven-core/src/test/java/org/apache/maven/internal/aether/ConsumerModelSourceTransformerTest.java
@@ -26,7 +26,7 @@ import java.nio.file.Paths;
 
 import org.apache.maven.model.Model;
 import org.apache.maven.model.building.TransformerContext;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.xmlunit.assertj.XmlAssert;
 
 public class ConsumerModelSourceTransformerTest
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/DefaultLifecyclesTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/DefaultLifecyclesTest.java
index 28ffeda669..2378ddd2af 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/DefaultLifecyclesTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/DefaultLifecyclesTest.java
@@ -15,25 +15,22 @@ package org.apache.maven.lifecycle;
  * the License.
  */
 
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.is;
-import static org.hamcrest.Matchers.arrayWithSize;
-import static org.hamcrest.Matchers.hasSize;
-
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;
 
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
-
 import javax.inject.Inject;
-import java.util.Collections;
-import java.util.List;
+
+import org.apache.maven.test.PlexusTestCase;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.arrayWithSize;
+import static org.hamcrest.Matchers.hasSize;
+import static org.hamcrest.Matchers.is;
 
 /**
  * @author Kristian Rosenvold
@@ -45,30 +42,7 @@ public class DefaultLifecyclesTest
     @Inject
     private DefaultLifecycles defaultLifeCycles;
 
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration configuration )
-    {
-        super.customizeContainerConfiguration( configuration );
-        configuration.setAutoWiring( true );
-        configuration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp() throws Exception
-    {
-        super.setUp();
-        getContainer();
-    }
-
-    @Override
-    protected synchronized void setupContainer()
-    {
-        super.setupContainer();
-
-        ( (DefaultPlexusContainer) getContainer() ).addPlexusInjector( Collections.emptyList(),
-                binder -> binder.requestInjection( this ) );
-    }
-
+    @Test
     public void testDefaultLifecycles()
     {
         final List<Lifecycle> lifecycles = defaultLifeCycles.getLifeCycles();
@@ -76,6 +50,7 @@ public class DefaultLifecyclesTest
         assertThat( DefaultLifecycles.STANDARD_LIFECYCLES,  arrayWithSize( 4 ) );
     }
 
+    @Test
     public void testDefaultLifecycle()
     {
         final Lifecycle lifecycle = getLifeCycleById( "default" );
@@ -83,6 +58,7 @@ public class DefaultLifecyclesTest
         assertThat( lifecycle.getPhases(), hasSize( 23 ) );
     }
 
+    @Test
     public void testCleanLifecycle()
     {
         final Lifecycle lifecycle = getLifeCycleById( "clean" );
@@ -90,6 +66,7 @@ public class DefaultLifecyclesTest
         assertThat( lifecycle.getPhases(), hasSize( 3 ) );
     }
 
+    @Test
     public void testSiteLifecycle()
     {
         final Lifecycle lifecycle = getLifeCycleById( "site" );
@@ -97,6 +74,7 @@ public class DefaultLifecyclesTest
         assertThat( lifecycle.getPhases(), hasSize( 4 ) );
     }
 
+    @Test
     public void testWrapperLifecycle()
     {
         final Lifecycle lifecycle = getLifeCycleById( "wrapper" );
@@ -104,6 +82,7 @@ public class DefaultLifecyclesTest
         assertThat( lifecycle.getPhases(), hasSize( 1 ) );
     }
 
+    @Test
     public void testCustomLifecycle()
     {
         List<Lifecycle> myLifecycles = new ArrayList<>();
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/LifecycleExecutorSubModulesTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/LifecycleExecutorSubModulesTest.java
index dbf242e5e1..84c16ff80e 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/LifecycleExecutorSubModulesTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/LifecycleExecutorSubModulesTest.java
@@ -25,6 +25,11 @@ import org.apache.maven.lifecycle.internal.LifecycleTaskSegmentCalculator;
 import org.apache.maven.lifecycle.internal.MojoExecutor;
 
 import javax.inject.Inject;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  * Just asserts that it's able to create those components. Handy when CDI container gets a nervous breakdown.
@@ -64,6 +69,7 @@ public class LifecycleExecutorSubModulesTest
         return "src/test/projects/lifecycle-executor";
     }
 
+    @Test
     public void testCreation()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/LifecycleExecutorTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/LifecycleExecutorTest.java
index d4a7e9b5b0..448ffda3ca 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/LifecycleExecutorTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/LifecycleExecutorTest.java
@@ -15,9 +15,6 @@ package org.apache.maven.lifecycle;
  * the License.
  */
 
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.hasSize;
-
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -45,6 +42,16 @@ import org.apache.maven.plugin.MojoNotFoundException;
 import org.apache.maven.plugin.descriptor.MojoDescriptor;
 import org.apache.maven.project.MavenProject;
 import org.codehaus.plexus.util.xml.Xpp3Dom;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.hasSize;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import javax.inject.Inject;
 
@@ -72,6 +79,7 @@ public class LifecycleExecutorTest
     // Tests which exercise the lifecycle executor when it is dealing with default lifecycle phases.
     // -----------------------------------------------------------------------------------------------
 
+    @Test
     public void testCalculationOfBuildPlanWithIndividualTaskWherePluginIsSpecifiedInThePom()
         throws Exception
     {
@@ -92,6 +100,7 @@ public class LifecycleExecutorTest
         assertEquals( "0.1", mojoExecution.getMojoDescriptor().getPluginDescriptor().getVersion() );
     }
 
+    @Test
     public void testCalculationOfBuildPlanWithIndividualTaskOfTheCleanLifecycle()
         throws Exception
     {
@@ -111,6 +120,7 @@ public class LifecycleExecutorTest
         assertEquals( "0.1", mojoExecution.getMojoDescriptor().getPluginDescriptor().getVersion() );
     }
 
+    @Test
     public void testCalculationOfBuildPlanWithIndividualTaskOfTheCleanCleanGoal()
         throws Exception
     {
@@ -233,6 +243,7 @@ public class LifecycleExecutorTest
                           "configuration/models[1]/model" ) );
     }
 
+    @Test
     public void testLifecycleQueryingUsingADefaultLifecyclePhase()
         throws Exception
     {
@@ -263,6 +274,7 @@ public class LifecycleExecutorTest
         assertEquals( "jar:jar", executionPlan.get( 7 ).getMojoDescriptor().getFullGoalName() );
     }
 
+    @Test
     public void testLifecyclePluginsRetrievalForDefaultLifecycle()
         throws Exception
     {
@@ -272,6 +284,7 @@ public class LifecycleExecutorTest
         assertThat( plugins.toString(), plugins, hasSize( 9 ) );
     }
 
+    @Test
     public void testPluginConfigurationCreation()
         throws Exception
     {
@@ -301,33 +314,27 @@ public class LifecycleExecutorTest
                                                                         mergedSegment.getTasks() );
     }
 
+    @Test
     public void testInvalidGoalName()
         throws Exception
     {
         File pom = getProject( "project-basic" );
         MavenSession session = createMavenSession( pom );
-        try
-        {
-            getExecutions( calculateExecutionPlan( session, "resources:" ) );
-            fail( "expected a MojoNotFoundException" );
-        }
-        catch ( MojoNotFoundException e )
-        {
-            assertEquals( "", e.getGoal() );
-        }
+        MojoNotFoundException e = assertThrows(
+                MojoNotFoundException.class,
+                () -> getExecutions( calculateExecutionPlan( session, "resources:" ) ),
+                "expected a MojoNotFoundException" );
+        assertEquals( "", e.getGoal() );
 
-        try
-        {
-            getExecutions( calculateExecutionPlan( session, "org.apache.maven.plugins:maven-resources-plugin:0.1:resources:toomany" ) );
-            fail( "expected a MojoNotFoundException" );
-        }
-        catch ( MojoNotFoundException e )
-        {
-            assertEquals( "resources:toomany", e.getGoal() );
-        }
+        e = assertThrows(
+                MojoNotFoundException.class,
+                () -> getExecutions( calculateExecutionPlan( session, "org.apache.maven.plugins:maven-resources-plugin:0.1:resources:toomany" ) ),
+                "expected a MojoNotFoundException" );
+        assertEquals( "resources:toomany", e.getGoal() );
     }
 
 
+    @Test
     public void testPluginPrefixRetrieval()
         throws Exception
     {
@@ -340,6 +347,7 @@ public class LifecycleExecutorTest
 
     // Prefixes
 
+    @Test
     public void testFindingPluginPrefixforCleanClean()
         throws Exception
     {
@@ -349,6 +357,7 @@ public class LifecycleExecutorTest
         assertNotNull( plugin );
     }
 
+    @Test
     public void testSetupMojoExecution()
         throws Exception
     {
@@ -362,7 +371,7 @@ public class LifecycleExecutorTest
                                                                      Arrays.asList( (Object) task ), false );
 
         MojoExecution execution = executionPlan.getMojoExecutions().get(0);
-        assertEquals(execution.toString(), "maven-it-plugin", execution.getArtifactId());
+        assertEquals( "maven-it-plugin", execution.getArtifactId(), execution.toString() );
         assertNull(execution.getConfiguration());
 
         lifeCycleExecutionPlanCalculator.setupMojoExecution( session, session.getCurrentProject(), execution,
@@ -371,6 +380,7 @@ public class LifecycleExecutorTest
         assertEquals("1.0", execution.getConfiguration().getChild( "version" ).getAttribute( "default-value" ));
     }
 
+    @Test
     public void testExecutionListeners()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/MavenExecutionPlanTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/MavenExecutionPlanTest.java
index ffd9f0dae9..e077dc9986 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/MavenExecutionPlanTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/MavenExecutionPlanTest.java
@@ -15,21 +15,24 @@
 
 package org.apache.maven.lifecycle;
 
-import junit.framework.TestCase;
+import java.util.Set;
 
 import org.apache.maven.lifecycle.internal.ExecutionPlanItem;
 import org.apache.maven.lifecycle.internal.stub.LifecycleExecutionPlanCalculatorStub;
 import org.apache.maven.model.Plugin;
+import org.junit.jupiter.api.Test;
 
-import java.util.Set;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 /**
  * @author Kristian Rosenvold
  */
 public class MavenExecutionPlanTest
-    extends TestCase
 {
 
+    @Test
     public void testFindLastInPhase()
         throws Exception
     {
@@ -41,6 +44,7 @@ public class MavenExecutionPlanTest
         assertNotNull( expected );
     }
 
+    @Test
     public void testThreadSafeMojos()
         throws Exception
     {
@@ -52,6 +56,7 @@ public class MavenExecutionPlanTest
     }
 
 
+    @Test
     public void testFindLastWhenFirst()
         throws Exception
     {
@@ -62,6 +67,7 @@ public class MavenExecutionPlanTest
         assertNull( beerPhase );
     }
 
+    @Test
     public void testFindLastInPhaseMisc()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/BuildListCalculatorTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/BuildListCalculatorTest.java
index a0039832af..6a73160c16 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/BuildListCalculatorTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/BuildListCalculatorTest.java
@@ -15,17 +15,20 @@ package org.apache.maven.lifecycle.internal;
  * the License.
  */
 
-import junit.framework.TestCase;
+import java.util.List;
+
 import org.apache.maven.execution.MavenSession;
 import org.apache.maven.lifecycle.internal.stub.LifecycleTaskSegmentCalculatorStub;
 import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
+import org.junit.jupiter.api.Test;
 
-import java.util.List;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 public class BuildListCalculatorTest
-    extends TestCase
 {
 
+    @Test
     public void testCalculateProjectBuilds()
         throws Exception
     {
@@ -35,8 +38,8 @@ public class BuildListCalculatorTest
         List<TaskSegment> taskSegments = lifecycleTaskSegmentCalculator.calculateTaskSegments( session );
         final ProjectBuildList buildList = buildListCalculator.calculateProjectBuilds( session, taskSegments );
         final ProjectBuildList segments = buildList.getByTaskSegment( taskSegments.get( 0 ) );
-        assertEquals( "Stub data contains 3 segments", 3, taskSegments.size() );
-        assertEquals( "Stub data contains 6 items", 6, segments.size() );
+        assertEquals( 3, taskSegments.size(), "Stub data contains 3 segments" );
+        assertEquals( 6, segments.size(), "Stub data contains 6 items" );
         final ProjectSegment build = segments.get( 0 );
         assertNotNull( build );
     }
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/BuilderCommonTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/BuilderCommonTest.java
index b1af3aa520..fe0776e90a 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/BuilderCommonTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/BuilderCommonTest.java
@@ -15,9 +15,7 @@ package org.apache.maven.lifecycle.internal;
  * the License.
  */
 
-import static org.junit.Assert.assertEquals;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.verify;
+import java.util.HashSet;
 
 import org.apache.maven.execution.MavenSession;
 import org.apache.maven.lifecycle.MavenExecutionPlan;
@@ -25,10 +23,11 @@ import org.apache.maven.lifecycle.internal.builder.BuilderCommon;
 import org.apache.maven.lifecycle.internal.stub.LifecycleExecutionPlanCalculatorStub;
 import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
 import org.codehaus.plexus.logging.Logger;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-
-import java.util.HashSet;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
 
 /**
  * @author Kristian Rosenvold
@@ -78,16 +77,19 @@ public class BuilderCommonTest
             + "you should define versions in pluginManagement section of your pom.xml or parent");
     }
 
+    @Test
     public void testHandleBuildError()
         throws Exception
     {
     }
 
+    @Test
     public void testAttachToThread()
         throws Exception
     {
     }
 
+    @Test
     public void testGetKey()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/ConcurrencyDependencyGraphTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/ConcurrencyDependencyGraphTest.java
index 6118bbe638..c2971f1c50 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/ConcurrencyDependencyGraphTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/ConcurrencyDependencyGraphTest.java
@@ -15,6 +15,8 @@ package org.apache.maven.lifecycle.internal;
  * the License.
  */
 
+import java.util.List;
+
 import org.apache.maven.execution.MavenSession;
 import org.apache.maven.execution.ProjectDependencyGraph;
 import org.apache.maven.lifecycle.LifecycleNotFoundException;
@@ -29,17 +31,23 @@ import org.apache.maven.plugin.PluginResolutionException;
 import org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException;
 import org.apache.maven.plugin.version.PluginVersionResolutionException;
 import org.apache.maven.project.MavenProject;
+import org.junit.jupiter.api.Test;
 
-import java.util.List;
-
-import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.*;
+import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.A;
+import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.B;
+import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.C;
+import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.X;
+import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.Y;
+import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.Z;
+import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.getProjectBuildList;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * @author Kristian Rosenvold
  */
 public class ConcurrencyDependencyGraphTest
-    extends junit.framework.TestCase
 {
+    @Test
     public void testConcurrencyGraphPrimaryVersion()
         throws InvalidPluginDescriptorException, PluginVersionResolutionException, PluginDescriptorParsingException,
         NoPluginFoundForPrefixException, MojoNotFoundException, PluginNotFoundException, PluginResolutionException,
@@ -70,6 +78,7 @@ public class ConcurrencyDependencyGraphTest
         assertEquals( Z, cDescendants.get( 1 ) );
     }
 
+    @Test
     public void testConcurrencyGraphDifferentCompletionOrder()
         throws InvalidPluginDescriptorException, PluginVersionResolutionException, PluginDescriptorParsingException,
         NoPluginFoundForPrefixException, MojoNotFoundException, PluginNotFoundException, PluginResolutionException,
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleDependencyResolverTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleDependencyResolverTest.java
index de02428675..000dd883ff 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleDependencyResolverTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleDependencyResolverTest.java
@@ -32,6 +32,10 @@ import org.apache.maven.execution.MavenSession;
 import org.apache.maven.project.MavenProject;
 
 import javax.inject.Inject;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class LifecycleDependencyResolverTest extends AbstractCoreMavenComponentTestCase
 {
@@ -44,6 +48,7 @@ public class LifecycleDependencyResolverTest extends AbstractCoreMavenComponentT
         return null;
     }
 
+    @Test
     public void testCachedReactorProjectDependencies() throws Exception
     {
         MavenSession session = createMavenSession( new File( "src/test/projects/lifecycle-dependency-resolver/pom.xml" ), new Properties(), true );
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleExecutionPlanCalculatorTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleExecutionPlanCalculatorTest.java
index 0e1c3c7304..28d552afec 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleExecutionPlanCalculatorTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleExecutionPlanCalculatorTest.java
@@ -23,6 +23,9 @@ import org.apache.maven.lifecycle.internal.stub.DefaultLifecyclesStub;
 import org.apache.maven.lifecycle.internal.stub.PluginPrefixResolverStub;
 import org.apache.maven.lifecycle.internal.stub.PluginVersionResolverStub;
 import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * @author Kristian Rosenvold
@@ -31,6 +34,7 @@ public class LifecycleExecutionPlanCalculatorTest
     extends AbstractCoreMavenComponentTestCase
 {
 
+    @Test
     public void testCalculateExecutionPlanWithGoalTasks()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleTaskSegmentCalculatorImplTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleTaskSegmentCalculatorImplTest.java
index 5db316f875..e5a44d645e 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleTaskSegmentCalculatorImplTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/LifecycleTaskSegmentCalculatorImplTest.java
@@ -19,19 +19,22 @@ package org.apache.maven.lifecycle.internal;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import java.util.List;
+
 import org.apache.maven.execution.MavenSession;
 import org.apache.maven.lifecycle.internal.stub.LifecycleTaskSegmentCalculatorStub;
 import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
+import org.junit.jupiter.api.Test;
 
-import java.util.List;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  * @author Kristian Rosenvold
  */
 public class LifecycleTaskSegmentCalculatorImplTest
-    extends TestCase
 {
+    @Test
     public void testCalculateProjectBuilds()
         throws Exception
     {
@@ -42,8 +45,8 @@ public class LifecycleTaskSegmentCalculatorImplTest
 
         final ProjectBuildList buildList = buildListCalculator.calculateProjectBuilds( session, taskSegments );
         final ProjectBuildList segments = buildList.getByTaskSegment( taskSegments.get( 0 ) );
-        assertEquals( "Stub data contains 3 segments", 3, taskSegments.size() );
-        assertEquals( "Stub data contains 6 items", 6, segments.size() );
+        assertEquals( 3, taskSegments.size(), "Stub data contains 3 segments" );
+        assertEquals( 6, segments.size(), "Stub data contains 6 items" );
         final ProjectSegment build = segments.get( 0 );
         assertNotNull( build );
     }
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/PhaseRecorderTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/PhaseRecorderTest.java
index f3d6422c66..1d0211f225 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/PhaseRecorderTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/PhaseRecorderTest.java
@@ -15,20 +15,23 @@ package org.apache.maven.lifecycle.internal;
  * the License.
  */
 
-import junit.framework.TestCase;
+import java.util.List;
 
 import org.apache.maven.lifecycle.MavenExecutionPlan;
 import org.apache.maven.lifecycle.internal.stub.LifecycleExecutionPlanCalculatorStub;
 import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
 import org.apache.maven.plugin.MojoExecution;
+import org.junit.jupiter.api.Test;
 
-import java.util.List;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * @author Kristian Rosenvold
  */
-public class PhaseRecorderTest extends TestCase
+public class PhaseRecorderTest
 {
+    @Test
     public void testObserveExecution() throws Exception {
         PhaseRecorder phaseRecorder = new PhaseRecorder( ProjectDependencyGraphStub.A);
         MavenExecutionPlan plan = LifecycleExecutionPlanCalculatorStub.getProjectAExceutionPlan();
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/ProjectBuildListTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/ProjectBuildListTest.java
index 3e3f8922f9..106c311987 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/ProjectBuildListTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/ProjectBuildListTest.java
@@ -17,12 +17,12 @@ package org.apache.maven.lifecycle.internal;
 
 import static org.hamcrest.Matchers.greaterThanOrEqualTo;
 import static org.hamcrest.Matchers.is;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.hamcrest.MatcherAssert.assertThat;
 
 import org.apache.maven.execution.MavenSession;
 import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author Kristian Rosenvold
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/builder/multithreaded/ConcurrencyDependencyGraphTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/builder/multithreaded/ConcurrencyDependencyGraphTest.java
index b909fb066b..acad888941 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/builder/multithreaded/ConcurrencyDependencyGraphTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/builder/multithreaded/ConcurrencyDependencyGraphTest.java
@@ -14,17 +14,20 @@ package org.apache.maven.lifecycle.internal.builder.multithreaded;
  * the License.
  */
 
-import junit.framework.TestCase;
+import java.util.List;
+import java.util.Set;
+
 import org.apache.maven.execution.ProjectDependencyGraph;
 import org.apache.maven.lifecycle.internal.ProjectBuildList;
 import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
 import org.apache.maven.project.MavenProject;
+import org.junit.jupiter.api.Test;
 
-import java.util.List;
-import java.util.Set;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
-public class ConcurrencyDependencyGraphTest extends TestCase {
+public class ConcurrencyDependencyGraphTest {
 
+    @Test
     public void testGraph() throws Exception {
 
         ProjectBuildList projectBuildList = ProjectDependencyGraphStub.getProjectBuildList(
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/builder/multithreaded/ThreadOutputMuxerTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/builder/multithreaded/ThreadOutputMuxerTest.java
index 32ce9badfa..549e90b8b8 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/builder/multithreaded/ThreadOutputMuxerTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/builder/multithreaded/ThreadOutputMuxerTest.java
@@ -15,23 +15,6 @@ package org.apache.maven.lifecycle.internal.builder.multithreaded;
  * the License.
  */
 
-import junit.framework.TestCase;
-
-import org.apache.maven.execution.MavenSession;
-import org.apache.maven.lifecycle.LifecycleNotFoundException;
-import org.apache.maven.lifecycle.LifecyclePhaseNotFoundException;
-import org.apache.maven.lifecycle.internal.ProjectBuildList;
-import org.apache.maven.lifecycle.internal.ProjectSegment;
-import org.apache.maven.lifecycle.internal.builder.multithreaded.ThreadOutputMuxer;
-import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
-import org.apache.maven.plugin.InvalidPluginDescriptorException;
-import org.apache.maven.plugin.MojoNotFoundException;
-import org.apache.maven.plugin.PluginDescriptorParsingException;
-import org.apache.maven.plugin.PluginNotFoundException;
-import org.apache.maven.plugin.PluginResolutionException;
-import org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException;
-import org.apache.maven.plugin.version.PluginVersionResolutionException;
-
 import java.io.ByteArrayOutputStream;
 import java.io.PrintStream;
 import java.util.ArrayList;
@@ -45,11 +28,27 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
 
+import org.apache.maven.execution.MavenSession;
+import org.apache.maven.lifecycle.LifecycleNotFoundException;
+import org.apache.maven.lifecycle.LifecyclePhaseNotFoundException;
+import org.apache.maven.lifecycle.internal.ProjectBuildList;
+import org.apache.maven.lifecycle.internal.ProjectSegment;
+import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
+import org.apache.maven.plugin.InvalidPluginDescriptorException;
+import org.apache.maven.plugin.MojoNotFoundException;
+import org.apache.maven.plugin.PluginDescriptorParsingException;
+import org.apache.maven.plugin.PluginNotFoundException;
+import org.apache.maven.plugin.PluginResolutionException;
+import org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException;
+import org.apache.maven.plugin.version.PluginVersionResolutionException;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 /**
  * @author Kristian Rosenvold
  */
 public class ThreadOutputMuxerTest
-    extends TestCase
 {
 
     final String paid = "Paid";
@@ -58,6 +57,7 @@ public class ThreadOutputMuxerTest
 
     final String full = "Full";
 
+    @Test
     public void testSingleThreaded()
         throws Exception
     {
@@ -86,6 +86,7 @@ public class ThreadOutputMuxerTest
         assertEquals( ( paid + in + full ).length(), byteArrayOutputStream.size() );
     }
 
+    @Test
     public void testMultiThreaded()
         throws Exception
     {
@@ -124,7 +125,7 @@ public class ThreadOutputMuxerTest
         threadOutputMuxer.close();
         final byte[] bytes = byteArrayOutputStream.toByteArray();
         String result = new String( bytes );
-        assertEquals( result, expectedLength, bytes.length );
+        assertEquals( expectedLength, bytes.length, result );
 
 
     }
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/stub/ProjectDependencyGraphStubTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/stub/ProjectDependencyGraphStubTest.java
index 8c60572343..cd2d327a13 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/internal/stub/ProjectDependencyGraphStubTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/internal/stub/ProjectDependencyGraphStubTest.java
@@ -15,11 +15,13 @@
 
 package org.apache.maven.lifecycle.internal.stub;
 
-import junit.framework.TestCase;
-import org.apache.maven.project.MavenProject;
-
 import java.util.List;
 
+import org.apache.maven.project.MavenProject;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests the stub. Yeah, I know.
@@ -28,30 +30,34 @@ import java.util.List;
  */
 
 public class ProjectDependencyGraphStubTest
-    extends TestCase
 {
+    ProjectDependencyGraphStub stub = new ProjectDependencyGraphStub();
+
+    @Test
     public void testADependencies()
     {
-        ProjectDependencyGraphStub stub = new ProjectDependencyGraphStub();
         final List<MavenProject> mavenProjects = stub.getUpstreamProjects( ProjectDependencyGraphStub.A, false );
         assertEquals( 0, mavenProjects.size() );
     }
 
-    public void testBDepenencies( ProjectDependencyGraphStub stub )
+    @Test
+    public void testBDepenencies()
     {
         final List<MavenProject> bProjects = stub.getUpstreamProjects( ProjectDependencyGraphStub.B, false );
         assertEquals( 1, bProjects.size() );
         assertTrue( bProjects.contains( ProjectDependencyGraphStub.A ) );
     }
 
-    public void testCDepenencies( ProjectDependencyGraphStub stub )
+    @Test
+    public void testCDepenencies()
     {
         final List<MavenProject> cProjects = stub.getUpstreamProjects( ProjectDependencyGraphStub.C, false );
         assertEquals( 1, cProjects.size() );
-        assertTrue( cProjects.contains( ProjectDependencyGraphStub.C ) );
+        assertTrue( cProjects.contains( ProjectDependencyGraphStub.A ) );
     }
 
-    public void testXDepenencies( ProjectDependencyGraphStub stub )
+    @Test
+    public void testXDepenencies()
     {
         final List<MavenProject> cProjects = stub.getUpstreamProjects( ProjectDependencyGraphStub.X, false );
         assertEquals( 2, cProjects.size() );
diff --git a/maven-core/src/test/java/org/apache/maven/lifecycle/mapping/LifecyclePhaseTest.java b/maven-core/src/test/java/org/apache/maven/lifecycle/mapping/LifecyclePhaseTest.java
index f60eace0a8..677915f92d 100644
--- a/maven-core/src/test/java/org/apache/maven/lifecycle/mapping/LifecyclePhaseTest.java
+++ b/maven-core/src/test/java/org/apache/maven/lifecycle/mapping/LifecyclePhaseTest.java
@@ -15,13 +15,13 @@ package org.apache.maven.lifecycle.mapping;
  * the License.
  */
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
 import java.util.Arrays;
 import java.util.List;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author atanasenko
diff --git a/maven-core/src/test/java/org/apache/maven/plugin/PluginManagerTest.java b/maven-core/src/test/java/org/apache/maven/plugin/PluginManagerTest.java
index b4b3b3ab04..954e221473 100644
--- a/maven-core/src/test/java/org/apache/maven/plugin/PluginManagerTest.java
+++ b/maven-core/src/test/java/org/apache/maven/plugin/PluginManagerTest.java
@@ -32,6 +32,13 @@ import org.apache.maven.plugin.descriptor.PluginDescriptor;
 import org.apache.maven.project.MavenProject;
 import org.codehaus.plexus.classworlds.realm.ClassRealm;
 import org.codehaus.plexus.component.repository.ComponentDescriptor;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.fail;
 
 import javax.inject.Inject;
 
@@ -41,12 +48,12 @@ public class PluginManagerTest
     @Inject
     private DefaultBuildPluginManager pluginManager;
 
-
     protected String getProjectsDirectory()
     {
         return "src/test/projects/plugin-manager";
     }
 
+    @Test
     public void testPluginLoading()
         throws Exception
     {
@@ -61,6 +68,7 @@ public class PluginManagerTest
         assertNotNull( pluginDescriptor );
     }
 
+    @Test
     public void testMojoDescriptorRetrieval()
         throws Exception
     {
@@ -97,6 +105,7 @@ public class PluginManagerTest
     //      only deal in concrete terms -- all version finding mumbo jumbo is a customization to base functionality
     //      the plugin manager provides.
 
+    @Test
     public void testRemoteResourcesPlugin()
         throws Exception
     {
@@ -150,6 +159,7 @@ public class PluginManagerTest
         */
     }
 
+    @Test
     public void testMojoConfigurationIsMergedCorrectly()
         throws Exception
     {
@@ -160,6 +170,7 @@ public class PluginManagerTest
      * is in the Antlr plugin which comes bundled with a version of Antlr but the user often times needs
      * to use a specific version. We need to make sure the version that they specify takes precedence.
      */
+    @Test
     public void testMojoWhereInternallyStatedDependencyIsOverriddenByProject()
         throws Exception
     {
@@ -169,6 +180,7 @@ public class PluginManagerTest
      * The case where you have a plugin in the current build that you want to be used on projects in
      * the current build.
      */
+    @Test
     public void testMojoThatIsPresentInTheCurrentBuild()
         throws Exception
     {
@@ -178,6 +190,7 @@ public class PluginManagerTest
      * This is the case where the Mojo wants to execute on every project and then do something at the end
      * with the results of each project.
      */
+    @Test
     public void testAggregatorMojo()
         throws Exception
     {
@@ -187,6 +200,7 @@ public class PluginManagerTest
      * This is the case where a Mojo needs the lifecycle run to a certain phase before it can do
      * anything useful.
      */
+    @Test
     public void testMojoThatRequiresExecutionToAGivenPhaseBeforeExecutingItself()
         throws Exception
     {
@@ -198,6 +212,7 @@ public class PluginManagerTest
 
     // test a build where projects use different versions of the same plugin
 
+    @Test
     public void testThatPluginDependencyThatHasSystemScopeIsResolved()
         throws Exception
     {
@@ -241,6 +256,7 @@ public class PluginManagerTest
         assertEquals( version, pd.getVersion() );
     }
 
+    @Test
     public void testPluginRealmCache()
         throws Exception
     {
@@ -285,6 +301,7 @@ public class PluginManagerTest
         }
     }
 
+    @Test
     public void testBuildExtensionsPluginLoading()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/plugin/PluginParameterExceptionTest.java b/maven-core/src/test/java/org/apache/maven/plugin/PluginParameterExceptionTest.java
index c13d1930a1..d2702938ee 100644
--- a/maven-core/src/test/java/org/apache/maven/plugin/PluginParameterExceptionTest.java
+++ b/maven-core/src/test/java/org/apache/maven/plugin/PluginParameterExceptionTest.java
@@ -24,8 +24,9 @@ import java.util.Collections;
 import org.apache.maven.plugin.descriptor.MojoDescriptor;
 import org.apache.maven.plugin.descriptor.Parameter;
 import org.apache.maven.plugin.descriptor.PluginDescriptor;
+import org.junit.jupiter.api.Test;
 
-import junit.framework.TestCase;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * MNG-3131
@@ -34,11 +35,11 @@ import junit.framework.TestCase;
  *
  */
 public class PluginParameterExceptionTest
-    extends TestCase
 {
 
     private final String LS = System.lineSeparator();
 
+    @Test
     public void testMissingRequiredStringArrayTypeParameter()
     {
         MojoDescriptor mojoDescriptor = new MojoDescriptor();
@@ -69,6 +70,7 @@ public class PluginParameterExceptionTest
                 "</configuration>." + LS, exception.buildDiagnosticMessage() );
     }
 
+    @Test
     public void testMissingRequiredCollectionTypeParameter()
     {
         MojoDescriptor mojoDescriptor = new MojoDescriptor();
@@ -99,6 +101,7 @@ public class PluginParameterExceptionTest
                 "</configuration>." + LS, exception.buildDiagnosticMessage() );
     }
 
+    @Test
     public void testMissingRequiredMapTypeParameter()
     {
         MojoDescriptor mojoDescriptor = new MojoDescriptor();
@@ -129,6 +132,7 @@ public class PluginParameterExceptionTest
                 "</configuration>." + LS, exception.buildDiagnosticMessage() );
     }
 
+    @Test
     public void testMissingRequiredPropertiesTypeParameter()
     {
         MojoDescriptor mojoDescriptor = new MojoDescriptor();
diff --git a/maven-core/src/test/java/org/apache/maven/plugin/PluginParameterExpressionEvaluatorTest.java b/maven-core/src/test/java/org/apache/maven/plugin/PluginParameterExpressionEvaluatorTest.java
index e579d691e2..9c0da4fa4f 100644
--- a/maven-core/src/test/java/org/apache/maven/plugin/PluginParameterExpressionEvaluatorTest.java
+++ b/maven-core/src/test/java/org/apache/maven/plugin/PluginParameterExpressionEvaluatorTest.java
@@ -46,6 +46,14 @@ import org.codehaus.plexus.MutablePlexusContainer;
 import org.codehaus.plexus.PlexusContainer;
 import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator;
 import org.codehaus.plexus.util.dag.CycleDetectedException;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import javax.inject.Inject;
 
@@ -60,14 +68,7 @@ public class PluginParameterExpressionEvaluatorTest
     @Inject
     private RepositorySystem factory;
 
-    @Override
-    protected void tearDown()
-        throws Exception
-    {
-        factory = null;
-        super.tearDown();
-    }
-
+    @Test
     public void testPluginDescriptorExpressionReference()
         throws Exception
     {
@@ -79,11 +80,12 @@ public class PluginParameterExpressionEvaluatorTest
 
         System.out.println( "Result: " + result );
 
-        assertSame( "${plugin} expression does not return plugin descriptor.",
-                    exec.getMojoDescriptor().getPluginDescriptor(),
-                    result );
+        assertSame( exec.getMojoDescriptor().getPluginDescriptor(),
+                    result,
+                    "${plugin} expression does not return plugin descriptor." );
     }
 
+    @Test
     public void testPluginArtifactsExpressionReference()
         throws Exception
     {
@@ -106,9 +108,10 @@ public class PluginParameterExpressionEvaluatorTest
 
         assertNotNull( depResults );
         assertEquals( 1, depResults.size() );
-        assertSame( "dependency artifact is wrong.", depArtifact, depResults.get( 0 ) );
+        assertSame( depArtifact, depResults.get( 0 ), "dependency artifact is wrong." );
     }
 
+    @Test
     public void testPluginArtifactMapExpressionReference()
         throws Exception
     {
@@ -131,11 +134,12 @@ public class PluginParameterExpressionEvaluatorTest
 
         assertNotNull( depResults );
         assertEquals( 1, depResults.size() );
-        assertSame( "dependency artifact is wrong.",
-                    depArtifact,
-                    depResults.get( ArtifactUtils.versionlessKey( depArtifact ) ) );
+        assertSame( depArtifact,
+                    depResults.get( ArtifactUtils.versionlessKey( depArtifact ) ),
+                    "dependency artifact is wrong." );
     }
 
+    @Test
     public void testPluginArtifactIdExpressionReference()
         throws Exception
     {
@@ -147,11 +151,12 @@ public class PluginParameterExpressionEvaluatorTest
 
         System.out.println( "Result: " + result );
 
-        assertSame( "${plugin.artifactId} expression does not return plugin descriptor's artifactId.",
-                    exec.getMojoDescriptor().getPluginDescriptor().getArtifactId(),
-                    result );
+        assertSame( exec.getMojoDescriptor().getPluginDescriptor().getArtifactId(),
+                    result,
+                    "${plugin.artifactId} expression does not return plugin descriptor's artifactId." );
     }
 
+    @Test
     public void testValueExtractionWithAPomValueContainingAPath()
         throws Exception
     {
@@ -174,6 +179,7 @@ public class PluginParameterExpressionEvaluatorTest
         assertEquals( expected, actual );
     }
 
+    @Test
     public void testEscapedVariablePassthrough()
         throws Exception
     {
@@ -191,6 +197,7 @@ public class PluginParameterExpressionEvaluatorTest
         assertEquals( var, value );
     }
 
+    @Test
     public void testEscapedVariablePassthroughInLargerExpression()
         throws Exception
     {
@@ -209,6 +216,7 @@ public class PluginParameterExpressionEvaluatorTest
         assertEquals( "${var} with version: 1", value );
     }
 
+    @Test
     public void testMultipleSubExpressionsInLargerExpression()
         throws Exception
     {
@@ -227,6 +235,7 @@ public class PluginParameterExpressionEvaluatorTest
         assertEquals( "test with version: 1", value );
     }
 
+    @Test
     public void testMissingPOMPropertyRefInLargerExpression()
         throws Exception
     {
@@ -241,6 +250,7 @@ public class PluginParameterExpressionEvaluatorTest
         assertEquals( expr, value );
     }
 
+    @Test
     public void testPOMPropertyExtractionWithMissingProject_WithDotNotation()
         throws Exception
     {
@@ -262,6 +272,7 @@ public class PluginParameterExpressionEvaluatorTest
         assertEquals( checkValue, value );
     }
 
+    @Test
     public void testBasedirExtractionWithMissingProject()
         throws Exception
     {
@@ -272,6 +283,7 @@ public class PluginParameterExpressionEvaluatorTest
         assertEquals( System.getProperty( "user.dir" ), value );
     }
 
+    @Test
     public void testValueExtractionFromSystemPropertiesWithMissingProject()
         throws Exception
     {
@@ -291,6 +303,7 @@ public class PluginParameterExpressionEvaluatorTest
         assertEquals( "value", value );
     }
 
+    @Test
     public void testValueExtractionFromSystemPropertiesWithMissingProject_WithDotNotation()
         throws Exception
     {
@@ -323,6 +336,7 @@ public class PluginParameterExpressionEvaluatorTest
         return new MavenSession( container, request, new DefaultMavenExecutionResult(), Collections.<MavenProject>emptyList()  );
     }
 
+    @Test
     public void testLocalRepositoryExtraction()
         throws Exception
     {
@@ -333,6 +347,7 @@ public class PluginParameterExpressionEvaluatorTest
         assertEquals( "local", ( (ArtifactRepository) value ).getId() );
     }
 
+    @Test
     public void testTwoExpressions()
         throws Exception
     {
@@ -351,6 +366,7 @@ public class PluginParameterExpressionEvaluatorTest
         assertEquals( "expected-directory" + File.separatorChar + "expected-finalName", value );
     }
 
+    @Test
     public void testShouldExtractPluginArtifacts()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/plugin/internal/DefaultLegacySupportTest.java b/maven-core/src/test/java/org/apache/maven/plugin/internal/DefaultLegacySupportTest.java
index 25aa176cc6..4cf01cf87d 100644
--- a/maven-core/src/test/java/org/apache/maven/plugin/internal/DefaultLegacySupportTest.java
+++ b/maven-core/src/test/java/org/apache/maven/plugin/internal/DefaultLegacySupportTest.java
@@ -18,20 +18,23 @@ package org.apache.maven.plugin.internal;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import java.util.concurrent.CountDownLatch;
+
 import org.apache.maven.execution.DefaultMavenExecutionRequest;
 import org.apache.maven.execution.MavenExecutionRequest;
 import org.apache.maven.execution.MavenSession;
+import org.junit.jupiter.api.Test;
 
-import java.util.concurrent.CountDownLatch;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 /**
  * @author Kristian Rosenvold
  */
-public class DefaultLegacySupportTest extends TestCase {
+public class DefaultLegacySupportTest {
     final CountDownLatch latch = new CountDownLatch(1);
     final DefaultLegacySupport defaultLegacySupport = new DefaultLegacySupport();
 
+    @Test
     public void testSetSession() throws Exception {
 
         MavenExecutionRequest mavenExecutionRequest = new DefaultMavenExecutionRequest();
diff --git a/maven-core/src/test/java/org/apache/maven/project/AbstractMavenProjectTestCase.java b/maven-core/src/test/java/org/apache/maven/project/AbstractMavenProjectTestCase.java
index 1456ead89f..8b0cec08fa 100644
--- a/maven-core/src/test/java/org/apache/maven/project/AbstractMavenProjectTestCase.java
+++ b/maven-core/src/test/java/org/apache/maven/project/AbstractMavenProjectTestCase.java
@@ -21,18 +21,16 @@ import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URL;
 import java.util.Arrays;
-import java.util.Collections;
 
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.model.building.ModelBuildingException;
 import org.apache.maven.model.building.ModelProblem;
 import org.apache.maven.repository.RepositorySystem;
 import org.apache.maven.repository.internal.MavenRepositorySystemUtils;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
+import org.apache.maven.test.PlexusTestCase;
 import org.eclipse.aether.DefaultRepositorySystemSession;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 
 import javax.inject.Inject;
 
@@ -47,24 +45,8 @@ public abstract class AbstractMavenProjectTestCase
     @Inject
     protected RepositorySystem repositorySystem;
 
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected synchronized void setupContainer()
-    {
-        super.setupContainer();
-
-        ( (DefaultPlexusContainer) getContainer() ).addPlexusInjector( Collections.emptyList(),
-                binder -> binder.requestInjection( this ) );
-    }
-
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
         super.setUp();
@@ -80,15 +62,6 @@ public abstract class AbstractMavenProjectTestCase
         }
     }
 
-    @Override
-    protected void tearDown()
-        throws Exception
-    {
-        projectBuilder = null;
-
-        super.tearDown();
-    }
-
     protected ProjectBuilder getProjectBuilder()
     {
         return projectBuilder;
diff --git a/maven-core/src/test/java/org/apache/maven/project/DefaultMavenProjectBuilderTest.java b/maven-core/src/test/java/org/apache/maven/project/DefaultMavenProjectBuilderTest.java
index 1bb66ab1c9..d73b4887db 100644
--- a/maven-core/src/test/java/org/apache/maven/project/DefaultMavenProjectBuilderTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/DefaultMavenProjectBuilderTest.java
@@ -18,8 +18,6 @@ package org.apache.maven.project;
  * specific language governing permissions and limitations
  * under the License.
  */
-import static org.hamcrest.Matchers.containsString;
-import static org.junit.Assert.assertThat;
 
 import java.io.File;
 import java.util.ArrayList;
@@ -27,8 +25,19 @@ import java.util.List;
 
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.repository.ArtifactRepository;
-import org.apache.maven.artifact.repository.layout.ArtifactRepositoryLayout;
 import org.codehaus.plexus.util.FileUtils;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.containsString;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.fail;
 
 public class DefaultMavenProjectBuilderTest
     extends AbstractMavenProjectTestCase
@@ -39,6 +48,7 @@ public class DefaultMavenProjectBuilderTest
     private File localRepoDir;
 
     @Override
+    @BeforeEach
     public void setUp()
         throws Exception
     {
@@ -53,6 +63,7 @@ public class DefaultMavenProjectBuilderTest
     }
 
     @Override
+    @AfterEach
     public void tearDown()
         throws Exception
     {
@@ -91,6 +102,7 @@ public class DefaultMavenProjectBuilderTest
      * Check that we can build ok from the middle pom of a (parent,child,grandchild) hierarchy
      * @throws Exception
      */
+    @Test
     public void testBuildFromMiddlePom() throws Exception
     {
         File f1 = getTestFile( "src/test/resources/projects/grandchild-check/child/pom.xml");
@@ -103,6 +115,7 @@ public class DefaultMavenProjectBuilderTest
         getProject( f2 );
     }
 
+    @Test
     public void testDuplicatePluginDefinitionsMerged()
         throws Exception
     {
@@ -114,22 +127,20 @@ public class DefaultMavenProjectBuilderTest
         assertEquals( "first", project.getBuildPlugins().get( 0 ).getExecutions().get( 0 ).getId() );
     }
 
+    @Test
     public void testFutureModelVersion()
         throws Exception
     {
         File f1 = getTestFile( "src/test/resources/projects/future-model-version-pom.xml" );
 
-        try
-        {
-            getProject( f1 );
-            fail( "Expected to fail for future versions" );
-        }
-        catch ( ProjectBuildingException e )
-        {
-            assertContains( "Building this project requires a newer version of Maven", e.getMessage() );
-        }
+        ProjectBuildingException e = assertThrows(
+                ProjectBuildingException.class,
+                () -> getProject( f1 ),
+                "Expected to fail for future versions" );
+        assertContains( "Building this project requires a newer version of Maven", e.getMessage() );
     }
 
+    @Test
     public void testPastModelVersion()
         throws Exception
     {
@@ -137,31 +148,24 @@ public class DefaultMavenProjectBuilderTest
         // update the resource if we stop supporting modelVersion 4.0.0
         File f1 = getTestFile( "src/test/resources/projects/past-model-version-pom.xml" );
 
-        try
-        {
-            getProject( f1 );
-            fail( "Expected to fail for past versions" );
-        }
-        catch ( ProjectBuildingException e )
-        {
-            assertContains( "Building this project requires an older version of Maven", e.getMessage() );
-        }
+        ProjectBuildingException e = assertThrows(
+                ProjectBuildingException.class,
+                () -> getProject( f1 ),
+                "Expected to fail for past versions" );
+        assertContains( "Building this project requires an older version of Maven", e.getMessage() );
     }
 
+    @Test
     public void testFutureSchemaModelVersion()
         throws Exception
     {
         File f1 = getTestFile( "src/test/resources/projects/future-schema-model-version-pom.xml" );
 
-        try
-        {
-            getProject( f1 );
-            fail( "Expected to fail for future versions" );
-        }
-        catch ( ProjectBuildingException e )
-        {
-            assertContains( "Building this project requires a newer version of Maven", e.getMessage() );
-        }
+        ProjectBuildingException e = assertThrows(
+                ProjectBuildingException.class,
+                () -> getProject( f1 ),
+                "Expected to fail for future versions" );
+        assertContains( "Building this project requires a newer version of Maven", e.getMessage() );
     }
 
     private void assertContains( String expected, String actual )
@@ -174,6 +178,7 @@ public class DefaultMavenProjectBuilderTest
         }
     }
 
+    @Test
     public void testBuildStubModelForMissingRemotePom()
         throws Exception
     {
@@ -211,31 +216,28 @@ public class DefaultMavenProjectBuilderTest
         }
     }
 
+    @Test
     public void testPartialResultUponBadDependencyDeclaration()
         throws Exception
     {
         File pomFile = getTestFile( "src/test/resources/projects/bad-dependency.xml" );
 
-        try
-        {
-            ProjectBuildingRequest request = newBuildingRequest();
-            request.setProcessPlugins( false );
-            request.setResolveDependencies( true );
-            projectBuilder.build( pomFile, request );
-            fail( "Project building did not fail despite invalid POM" );
-        }
-        catch ( ProjectBuildingException e )
-        {
-            List<ProjectBuildingResult> results = e.getResults();
-            assertNotNull( results );
-            assertEquals( 1, results.size() );
-            ProjectBuildingResult result = results.get( 0 );
-            assertNotNull( result );
-            assertNotNull( result.getProject() );
-            assertEquals( 1, result.getProblems().size() );
-            assertEquals( 1, result.getProject().getArtifacts().size() );
-            assertNotNull( result.getDependencyResolutionResult() );
-        }
+        ProjectBuildingRequest request = newBuildingRequest();
+        request.setProcessPlugins( false );
+        request.setResolveDependencies( true );
+        ProjectBuildingException e = assertThrows(
+                ProjectBuildingException.class,
+                () -> projectBuilder.build( pomFile, request ),
+                "Project building did not fail despite invalid POM" );
+        List<ProjectBuildingResult> results = e.getResults();
+        assertNotNull( results );
+        assertEquals( 1, results.size() );
+        ProjectBuildingResult result = results.get( 0 );
+        assertNotNull( result );
+        assertNotNull( result.getProject() );
+        assertEquals( 1, result.getProblems().size() );
+        assertEquals( 1, result.getProject().getArtifacts().size() );
+        assertNotNull( result.getDependencyResolutionResult() );
     }
 
     /**
@@ -243,6 +245,7 @@ public class DefaultMavenProjectBuilderTest
      *
      * @throws Exception
      */
+    @Test
     public void testBuildValidParentVersionRangeLocally() throws Exception
     {
         File f1 = getTestFile( "src/test/resources/projects/parent-version-range-local-valid/child/pom.xml" );
@@ -262,21 +265,18 @@ public class DefaultMavenProjectBuilderTest
      *
      * @throws Exception
      */
+    @Test
     public void testBuildParentVersionRangeLocallyWithoutChildVersion() throws Exception
     {
         File f1 =
             getTestFile( "src/test/resources/projects/parent-version-range-local-child-without-version/child/pom.xml" );
 
-        try
-        {
-            getProject( f1 );
-            fail( "Expected 'ProjectBuildingException' not thrown." );
-        }
-        catch ( final ProjectBuildingException e )
-        {
-            assertNotNull( e.getMessage() );
-            assertThat( e.getMessage(), containsString( "Version must be a constant" ) );
-        }
+        ProjectBuildingException e = assertThrows(
+                ProjectBuildingException.class,
+                () -> getProject( f1 ),
+                "Expected 'ProjectBuildingException' not thrown." );
+        assertNotNull( e.getMessage() );
+        assertThat( e.getMessage(), containsString( "Version must be a constant" ) );
     }
 
     /**
@@ -284,22 +284,19 @@ public class DefaultMavenProjectBuilderTest
      *
      * @throws Exception
      */
+    @Test
     public void testBuildParentVersionRangeLocallyWithChildVersionExpression() throws Exception
     {
         File f1 =
             getTestFile(
                 "src/test/resources/projects/parent-version-range-local-child-version-expression/child/pom.xml" );
 
-        try
-        {
-            getProject( f1 );
-            fail( "Expected 'ProjectBuildingException' not thrown." );
-        }
-        catch ( final ProjectBuildingException e )
-        {
-            assertNotNull( e.getMessage() );
-            assertThat( e.getMessage(), containsString( "Version must be a constant" ) );
-        }
+        ProjectBuildingException e = assertThrows(
+                ProjectBuildingException.class,
+                () -> getProject( f1 ),
+                "Expected 'ProjectBuildingException' not thrown." );
+        assertNotNull( e.getMessage() );
+        assertThat( e.getMessage(), containsString( "Version must be a constant" ) );
     }
 
     /**
@@ -307,6 +304,7 @@ public class DefaultMavenProjectBuilderTest
      *
      * @throws Exception
      */
+    @Test
     public void testBuildParentVersionRangeExternally() throws Exception
     {
         File f1 = getTestFile( "src/test/resources/projects/parent-version-range-external-valid/pom.xml" );
@@ -326,22 +324,19 @@ public class DefaultMavenProjectBuilderTest
      *
      * @throws Exception
      */
+    @Test
     public void testBuildParentVersionRangeExternallyWithoutChildVersion() throws Exception
     {
         File f1 =
             getTestFile(
                 "src/test/resources/projects/parent-version-range-external-child-without-version/pom.xml" );
 
-        try
-        {
-            this.getProjectFromRemoteRepository( f1 );
-            fail( "Expected 'ProjectBuildingException' not thrown." );
-        }
-        catch ( final ProjectBuildingException e )
-        {
-            assertNotNull( e.getMessage() );
-            assertThat( e.getMessage(), containsString( "Version must be a constant" ) );
-        }
+        ProjectBuildingException e = assertThrows(
+                ProjectBuildingException.class,
+                () -> getProjectFromRemoteRepository( f1 ),
+                "Expected 'ProjectBuildingException' not thrown." );
+        assertNotNull( e.getMessage() );
+        assertThat( e.getMessage(), containsString( "Version must be a constant" ) );
     }
 
     /**
@@ -349,22 +344,19 @@ public class DefaultMavenProjectBuilderTest
      *
      * @throws Exception
      */
+    @Test
     public void testBuildParentVersionRangeExternallyWithChildVersionExpression() throws Exception
     {
         File f1 =
             getTestFile(
                 "src/test/resources/projects/parent-version-range-external-child-version-expression/pom.xml" );
 
-        try
-        {
-            this.getProjectFromRemoteRepository( f1 );
-            fail( "Expected 'ProjectBuildingException' not thrown." );
-        }
-        catch ( final ProjectBuildingException e )
-        {
-            assertNotNull( e.getMessage() );
-            assertThat( e.getMessage(), containsString( "Version must be a constant" ) );
-        }
+        ProjectBuildingException e = assertThrows(
+                ProjectBuildingException.class,
+                () -> getProjectFromRemoteRepository( f1 ),
+                "Expected 'ProjectBuildingException' not thrown." );
+        assertNotNull( e.getMessage() );
+        assertThat( e.getMessage(), containsString( "Version must be a constant" ) );
     }
 
 }
diff --git a/maven-core/src/test/java/org/apache/maven/project/ExtensionDescriptorBuilderTest.java b/maven-core/src/test/java/org/apache/maven/project/ExtensionDescriptorBuilderTest.java
index 5ac8f611cf..150eb6a949 100644
--- a/maven-core/src/test/java/org/apache/maven/project/ExtensionDescriptorBuilderTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/ExtensionDescriptorBuilderTest.java
@@ -19,16 +19,20 @@ package org.apache.maven.project;
  * under the License.
  */
 
-import static org.hamcrest.Matchers.empty;
-import static org.hamcrest.Matchers.is;
-import static org.junit.Assert.assertThat;
-
 import java.io.ByteArrayInputStream;
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.Matchers.empty;
+import static org.hamcrest.Matchers.is;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.hamcrest.MatcherAssert.assertThat;
 
 /**
  * Tests {@link ExtensionDescriptorBuilder}.
@@ -36,27 +40,22 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ExtensionDescriptorBuilderTest
-    extends TestCase
 {
 
     private ExtensionDescriptorBuilder builder;
 
-    @Override
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
-        super.setUp();
-
         builder = new ExtensionDescriptorBuilder();
     }
 
-    @Override
-    protected void tearDown()
+    @AfterEach
+    public void tearDown()
         throws Exception
     {
         builder = null;
-
-        super.tearDown();
     }
 
     private InputStream toStream( String xml )
@@ -64,6 +63,7 @@ public class ExtensionDescriptorBuilderTest
         return new ByteArrayInputStream( xml.getBytes( StandardCharsets.UTF_8 ) );
     }
 
+    @Test
     public void testEmptyDescriptor()
         throws Exception
     {
@@ -78,6 +78,7 @@ public class ExtensionDescriptorBuilderTest
         assertThat( ed.getExportedArtifacts(), is( empty() ) );
     }
 
+    @Test
     public void testCompleteDescriptor()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/project/MavenProjectTest.java b/maven-core/src/test/java/org/apache/maven/project/MavenProjectTest.java
index 6b4258b3fd..d2cba20a41 100644
--- a/maven-core/src/test/java/org/apache/maven/project/MavenProjectTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/MavenProjectTest.java
@@ -28,11 +28,19 @@ import org.apache.maven.model.DependencyManagement;
 import org.apache.maven.model.Model;
 import org.apache.maven.model.Parent;
 import org.apache.maven.model.Profile;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class MavenProjectTest
     extends AbstractMavenProjectTestCase
 {
 
+    @Test
     public void testShouldInterpretChildPathAdjustmentBasedOnModulePaths()
         throws IOException
     {
@@ -59,6 +67,7 @@ public class MavenProjectTest
         assertEquals( "..", adjustment );
     }
 
+    @Test
     public void testIdentityProtoInheritance()
     {
         Parent parent = new Parent();
@@ -74,14 +83,15 @@ public class MavenProjectTest
 
         MavenProject project = new MavenProject( model );
 
-        assertEquals( "groupId proto-inheritance failed.", "test-group", project.getGroupId() );
-        assertEquals( "artifactId is masked.", "real-artifact", project.getArtifactId() );
-        assertEquals( "version proto-inheritance failed.", "1000", project.getVersion() );
+        assertEquals( "test-group", project.getGroupId(), "groupId proto-inheritance failed." );
+        assertEquals( "real-artifact", project.getArtifactId(), "artifactId is masked." );
+        assertEquals( "1000", project.getVersion(), "version proto-inheritance failed." );
 
         // draw the NPE.
         project.getId();
     }
 
+    @Test
     public void testEmptyConstructor()
     {
         MavenProject project = new MavenProject();
@@ -90,6 +100,7 @@ public class MavenProjectTest
                         + MavenProject.EMPTY_PROJECT_VERSION, project.getId() );
     }
 
+    @Test
     public void testClone()
         throws Exception
     {
@@ -99,34 +110,35 @@ public class MavenProjectTest
         MavenProject clonedProject = projectToClone.clone();
         assertEquals( "maven-core", clonedProject.getArtifactId() );
         Map<?, ?> clonedMap = clonedProject.getManagedVersionMap();
-        assertNotNull( "ManagedVersionMap not copied", clonedMap );
-        assertTrue( "ManagedVersionMap is not empty", clonedMap.isEmpty() );
+        assertNotNull( clonedMap, "ManagedVersionMap not copied" );
+        assertTrue( clonedMap.isEmpty(), "ManagedVersionMap is not empty" );
     }
 
+    @Test
     public void testCloneWithDependencyManagement()
         throws Exception
     {
         File f = getFileForClasspathResource( "dependencyManagement-pom.xml" );
         MavenProject projectToClone = getProjectWithDependencies( f );
         DependencyManagement dep = projectToClone.getDependencyManagement();
-        assertNotNull( "No dependencyManagement", dep );
+        assertNotNull( dep, "No dependencyManagement" );
         List<?> list = dep.getDependencies();
-        assertNotNull( "No dependencies", list );
-        assertTrue( "Empty dependency list", !list.isEmpty() );
+        assertNotNull( list, "No dependencies" );
+        assertTrue( !list.isEmpty(), "Empty dependency list" );
 
         Map<?, ?> map = projectToClone.getManagedVersionMap();
-        assertNotNull( "No ManagedVersionMap", map );
-        assertTrue( "ManagedVersionMap is empty", !map.isEmpty() );
+        assertNotNull( map, "No ManagedVersionMap" );
+        assertTrue( !map.isEmpty(), "ManagedVersionMap is empty" );
 
         MavenProject clonedProject = projectToClone.clone();
         assertEquals( "maven-core", clonedProject.getArtifactId() );
         Map<?, ?> clonedMap = clonedProject.getManagedVersionMap();
-        assertNotNull( "ManagedVersionMap not copied", clonedMap );
-        assertTrue( "ManagedVersionMap is empty", !clonedMap.isEmpty() );
-        assertTrue( "ManagedVersionMap does not contain test key",
-                    clonedMap.containsKey( "maven-test:maven-test-b:jar" ) );
+        assertNotNull( clonedMap, "ManagedVersionMap not copied" );
+        assertTrue( !clonedMap.isEmpty(), "ManagedVersionMap is empty" );
+        assertTrue( clonedMap.containsKey( "maven-test:maven-test-b:jar" ), "ManagedVersionMap does not contain test key" );
     }
 
+    @Test
     public void testGetModulePathAdjustment()
         throws IOException
     {
@@ -146,6 +158,7 @@ public class MavenProjectTest
         assertEquals( "..", pathAdjustment );
     }
 
+    @Test
     public void testCloneWithDistributionManagement()
         throws Exception
     {
@@ -154,9 +167,10 @@ public class MavenProjectTest
         MavenProject projectToClone = getProject( f );
 
         MavenProject clonedProject = projectToClone.clone();
-        assertNotNull( "clonedProject - distributionManagement", clonedProject.getDistributionManagementArtifactRepository() );
+        assertNotNull( clonedProject.getDistributionManagementArtifactRepository(), "clonedProject - distributionManagement" );
     }
 
+    @Test
     public void testCloneWithActiveProfile()
         throws Exception
     {
@@ -165,18 +179,19 @@ public class MavenProjectTest
         MavenProject projectToClone = getProject( f );
         List<Profile> activeProfilesOrig = projectToClone.getActiveProfiles();
 
-        assertEquals( "Expecting 1 active profile", 1, activeProfilesOrig.size() );
+        assertEquals( 1, activeProfilesOrig.size(), "Expecting 1 active profile" );
 
         MavenProject clonedProject = projectToClone.clone();
 
         List<Profile> activeProfilesClone = clonedProject.getActiveProfiles();
 
-        assertEquals( "Expecting 1 active profile", 1, activeProfilesClone.size() );
+        assertEquals( 1, activeProfilesClone.size(), "Expecting 1 active profile" );
 
-        assertNotSame( "The list of active profiles should have been cloned too but is same", activeProfilesOrig,
-                       activeProfilesClone );
+        assertNotSame( activeProfilesOrig, activeProfilesClone,
+                      "The list of active profiles should have been cloned too but is same" );
     }
 
+    @Test
     public void testCloneWithBaseDir()
         throws Exception
     {
@@ -184,10 +199,11 @@ public class MavenProjectTest
         MavenProject projectToClone = getProject( f );
         projectToClone.setPomFile( new File( new File( f.getParentFile(), "target" ), "flattened.xml" ) );
         MavenProject clonedProject = projectToClone.clone();
-        assertEquals( "POM file is preserved across clone", projectToClone.getFile(), clonedProject.getFile() );
-        assertEquals( "Base directory is preserved across clone", projectToClone.getBasedir(), clonedProject.getBasedir() );
+        assertEquals( projectToClone.getFile(), clonedProject.getFile(), "POM file is preserved across clone" );
+        assertEquals( projectToClone.getBasedir(), clonedProject.getBasedir(), "Base directory is preserved across clone" );
     }
 
+    @Test
     public void testUndefinedOutputDirectory()
         throws Exception
     {
@@ -198,6 +214,7 @@ public class MavenProjectTest
         assertNoNulls( p.getTestClasspathElements() );
     }
 
+    @Test
     public void testAddDotFile()
     {
         MavenProject project = new MavenProject();
diff --git a/maven-core/src/test/java/org/apache/maven/project/PomConstructionTest.java b/maven-core/src/test/java/org/apache/maven/project/PomConstructionTest.java
index e953dbc8e2..6a53907e10 100644
--- a/maven-core/src/test/java/org/apache/maven/project/PomConstructionTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/PomConstructionTest.java
@@ -22,11 +22,13 @@ package org.apache.maven.project;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 
+import javax.inject.Inject;
+
+import org.apache.maven.test.PlexusTestCase;
 import org.apache.maven.artifact.repository.layout.DefaultRepositoryLayout;
 import org.apache.maven.model.Plugin;
 import org.apache.maven.model.PluginExecution;
@@ -34,19 +36,23 @@ import org.apache.maven.model.building.ModelBuildingRequest;
 import org.apache.maven.project.harness.PomTestWrapper;
 import org.apache.maven.repository.RepositorySystem;
 import org.apache.maven.repository.internal.MavenRepositorySystemUtils;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
 import org.eclipse.aether.DefaultRepositorySystemSession;
 import org.eclipse.aether.internal.impl.SimpleLocalRepositoryManagerFactory;
 import org.eclipse.aether.repository.LocalRepository;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-import javax.inject.Inject;
-
-import static org.hamcrest.Matchers.*;
-import static org.junit.Assert.assertNotEquals;
-import static org.junit.Assert.assertThat;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.endsWith;
+import static org.hamcrest.Matchers.lessThan;
+import static org.hamcrest.Matchers.startsWith;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class PomConstructionTest
     extends PlexusTestCase
@@ -65,33 +71,17 @@ public class PomConstructionTest
 
     private File testDirectory;
 
-    @Override
-    protected synchronized void setupContainer()
-    {
-        super.setupContainer();
-
-        ( (DefaultPlexusContainer) getContainer() ).addPlexusInjector( Collections.emptyList(),
-                binder -> binder.requestInjection( this ) );
-    }
-
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
-        getContainer();
+        super.setUp();
         testDirectory = new File( getBasedir(), BASE_POM_DIR );
         new File( getBasedir(), BASE_MIXIN_DIR );
     }
 
-    @Override
-    protected void tearDown()
+    @AfterEach
+    public void tearDown()
         throws Exception
     {
         projectBuilder = null;
@@ -104,7 +94,7 @@ public class PomConstructionTest
      *
      * @throws Exception
      */
-
+    @Test
     public void testEmptyUrl()
         throws Exception
     {
@@ -117,6 +107,7 @@ public class PomConstructionTest
      * @throws Exception
      */
     /* MNG-786*/
+    @Test
     public void testProfileModules()
         throws Exception
     {
@@ -134,6 +125,7 @@ public class PomConstructionTest
      *
      * @throws Exception
      */
+    @Test
     public void testParentInheritance()
         throws Exception
     {
@@ -141,6 +133,7 @@ public class PomConstructionTest
     }
 
     /*MNG-3995*/
+    @Test
     public void testExecutionConfigurationJoin()
        throws Exception
     {
@@ -149,6 +142,7 @@ public class PomConstructionTest
     }
 
     /*MNG-3803*/
+    @Test
     public void testPluginConfigProperties()
        throws Exception
     {
@@ -157,6 +151,7 @@ public class PomConstructionTest
     }
 
     /*MNG-3900*/
+    @Test
     public void testProfilePropertiesInterpolation()
         throws Exception
     {
@@ -188,6 +183,7 @@ public class PomConstructionTest
     }
 
     /*MNG- 4010*/
+    @Test
     public void testDuplicateExclusionsDependency()
         throws Exception
     {
@@ -197,6 +193,7 @@ public class PomConstructionTest
     }
 
     /*MNG- 4008*/
+    @Test
     public void testMultipleFilters()
         throws Exception
     {
@@ -220,6 +217,7 @@ public class PomConstructionTest
         }
     }
 
+    @Test
     public void testValidationErrorUponNonUniqueDependencyManagementKey()
         throws Exception
     {
@@ -234,6 +232,7 @@ public class PomConstructionTest
         }
     }
 
+    @Test
     public void testValidationErrorUponNonUniqueDependencyKeyInProfile()
         throws Exception
     {
@@ -248,6 +247,7 @@ public class PomConstructionTest
         }
     }
 
+    @Test
     public void testValidationErrorUponNonUniqueDependencyManagementKeyInProfile()
         throws Exception
     {
@@ -262,7 +262,7 @@ public class PomConstructionTest
         }
     }
     */
-
+    @Test
     public void testDuplicateDependenciesCauseLastDeclarationToBePickedInLenientMode()
         throws Exception
     {
@@ -272,6 +272,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3567*/
+    @Test
     public void testParentInterpolation()
         throws Exception
     {
@@ -295,6 +296,7 @@ public class PomConstructionTest
     */
 
     /* MNG-3567*/
+    @Test
     public void testPluginManagementInherited()
         throws Exception
     {
@@ -303,6 +305,7 @@ public class PomConstructionTest
     }
 
      /* MNG-2174*/
+    @Test
     public void testPluginManagementDependencies()
         throws Exception
     {
@@ -313,6 +316,7 @@ public class PomConstructionTest
 
 
     /* MNG-3877*/
+    @Test
     public void testReportingInterpolation()
         throws Exception
     {
@@ -323,6 +327,7 @@ public class PomConstructionTest
     }
 
 
+    @Test
     public void testPluginOrder()
         throws Exception
     {
@@ -331,6 +336,7 @@ public class PomConstructionTest
         assertEquals( "maven-surefire-plugin", pom.getValue( "build/plugins[2]/artifactId" ) );
     }
 
+    @Test
     public void testErroneousJoiningOfDifferentPluginsWithEqualDependencies()
         throws Exception
     {
@@ -342,6 +348,7 @@ public class PomConstructionTest
     }
 
     /** MNG-3821 */
+    @Test
     public void testErroneousJoiningOfDifferentPluginsWithEqualExecutionIds()
         throws Exception
     {
@@ -357,6 +364,7 @@ public class PomConstructionTest
     }
 
      /** MNG-3998 */
+    @Test
     public void testExecutionConfiguration()
         throws Exception
     {
@@ -375,8 +383,7 @@ public class PomConstructionTest
     PomTestWrapper pom = buildPom( "plugin-config-duplicate/dup" );
 }
 */
-
-
+    @Test
     public void testSingleConfigurationInheritance()
         throws Exception
     {
@@ -389,6 +396,7 @@ public class PomConstructionTest
                       pom.getValue( "build/plugins[1]/executions[1]/configuration[1]/rules[1]/requireJavaVersion[1]/version" ) );
     }
 
+    @Test
     public void testConfigWithPluginManagement()
         throws Exception
     {
@@ -399,6 +407,7 @@ public class PomConstructionTest
     }
 
     /** MNG-3965 */
+    @Test
     public void testExecutionConfigurationSubcollections()
         throws Exception
     {
@@ -407,6 +416,7 @@ public class PomConstructionTest
     }
 
     /** MNG-3985 */
+    @Test
     public void testMultipleRepositories()
         throws Exception
     {
@@ -415,6 +425,7 @@ public class PomConstructionTest
     }
 
     /** MNG-3965 */
+    @Test
     public void testMultipleExecutionIds()
         throws Exception
     {
@@ -423,12 +434,14 @@ public class PomConstructionTest
     }
 
     /** MNG-3997 */
+    @Test
     public void testConsecutiveEmptyElements()
         throws Exception
     {
         buildPom( "consecutive_empty_elements" );
     }
 
+    @Test
     public void testOrderOfGoalsFromPluginExecutionWithoutPluginManagement()
         throws Exception
     {
@@ -442,6 +455,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3886*/
+    @Test
     public void testOrderOfGoalsFromPluginExecutionWithPluginManagement()
         throws Exception
     {
@@ -454,6 +468,7 @@ public class PomConstructionTest
         assertEquals( "e", pom.getValue( "build/plugins[1]/executions[1]/goals[5]" ) );
     }
 
+    @Test
     public void testOrderOfPluginExecutionsWithoutPluginManagement()
         throws Exception
     {
@@ -467,6 +482,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3887 */
+    @Test
     public void testOrderOfPluginExecutionsWithPluginManagement()
         throws Exception
     {
@@ -479,6 +495,7 @@ public class PomConstructionTest
         assertEquals( "e", pom.getValue( "build/plugins[1]/executions[5]/id" ) );
     }
 
+    @Test
     public void testMergeOfPluginExecutionsWhenChildInheritsPluginVersion()
         throws Exception
     {
@@ -487,6 +504,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3943*/
+    @Test
     public void testMergeOfPluginExecutionsWhenChildAndParentUseDifferentPluginVersions()
         throws Exception
     {
@@ -495,6 +513,7 @@ public class PomConstructionTest
     }
 
 
+    @Test
     public void testInterpolationWithXmlMarkup()
         throws Exception
     {
@@ -503,6 +522,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3925 */
+    @Test
     public void testOrderOfMergedPluginExecutionsWithoutPluginManagement()
         throws Exception
     {
@@ -515,6 +535,7 @@ public class PomConstructionTest
         assertEquals( "child-2", pom.getValue( "build/plugins[1]/executions[5]/goals[1]" ) );
     }
 
+    @Test
     public void testOrderOfMergedPluginExecutionsWithPluginManagement()
         throws Exception
     {
@@ -528,6 +549,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3984*/
+    @Test
     public void testDifferentContainersWithSameId()
         throws Exception
     {
@@ -537,6 +559,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3937*/
+    @Test
     public void testOrderOfMergedPluginExecutionGoalsWithoutPluginManagement()
         throws Exception
     {
@@ -550,6 +573,7 @@ public class PomConstructionTest
         assertEquals( "parent-a", pom.getValue( "build/plugins[1]/executions[1]/goals[5]" ) );
     }
 
+    @Test
     public void testOrderOfMergedPluginExecutionGoalsWithPluginManagement()
         throws Exception
     {
@@ -563,6 +587,7 @@ public class PomConstructionTest
     }
 
     /*MNG-3938*/
+    @Test
     public void testOverridingOfInheritedPluginExecutionsWithoutPluginManagement()
         throws Exception
     {
@@ -573,6 +598,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3938 */
+    @Test
     public void testOverridingOfInheritedPluginExecutionsWithPluginManagement()
         throws Exception
     {
@@ -584,6 +610,7 @@ public class PomConstructionTest
 
 
     /* MNG-3906*/
+    @Test
     public void testOrderOfMergedPluginDependenciesWithoutPluginManagement()
         throws Exception
     {
@@ -603,6 +630,7 @@ public class PomConstructionTest
         assertEquals( "1", pom.getValue( "build/plugins[1]/dependencies[5]/version" ) );
     }
 
+    @Test
     public void testOrderOfMergedPluginDependenciesWithPluginManagement()
         throws Exception
     {
@@ -620,6 +648,7 @@ public class PomConstructionTest
         assertEquals( "1", pom.getValue( "build/plugins[1]/dependencies[5]/version" ) );
     }
 
+    @Test
     public void testInterpolationOfNestedBuildDirectories()
         throws Exception
     {
@@ -632,6 +661,7 @@ public class PomConstructionTest
                       new File( (String) pom.getValue( "properties/dir2" ) ) );
     }
 
+    @Test
     public void testAppendArtifactIdOfChildToInheritedUrls()
         throws Exception
     {
@@ -651,6 +681,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3846*/
+    @Test
     public void testAppendArtifactIdOfParentAndChildToInheritedUrls()
         throws Exception
     {
@@ -669,7 +700,7 @@ public class PomConstructionTest
         assertEquals( "https://parent.url/download", pom.getValue( "distributionManagement/downloadUrl" ) );
     }
     //*/
-
+    @Test
     public void testNonInheritedElementsInSubtreesOverriddenByChild()
         throws Exception
     {
@@ -692,6 +723,7 @@ public class PomConstructionTest
         assertEquals( null, pom.getValue( "distributionManagement/site/name" ) );
     }
 
+    @Test
     public void testXmlTextCoalescing()
         throws Exception
     {
@@ -702,6 +734,7 @@ public class PomConstructionTest
                       pom.getValue( "properties/prop2" ).toString().trim().replaceAll( "[\n\r]", "" ).length() );
     }
 
+    @Test
     public void testFullInterpolationOfNestedExpressions()
         throws Exception
     {
@@ -713,6 +746,7 @@ public class PomConstructionTest
         }
     }
 
+    @Test
     public void testInterpolationOfLegacyExpressionsThatDontIncludeTheProjectPrefix()
         throws Exception
     {
@@ -747,6 +781,7 @@ public class PomConstructionTest
         assertThat( pom.getValue( "properties/projectSiteOut" ).toString(), endsWith( "doc" ) );
     }
 
+    @Test
     public void testInterpolationWithBasedirAlignedDirectories()
         throws Exception
     {
@@ -768,6 +803,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3944*/
+    @Test
     public void testInterpolationOfBasedirInPomWithUnusualName()
         throws Exception
     {
@@ -777,6 +813,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3979 */
+    @Test
     public void testJoiningOfContainersWhenChildHasEmptyElements()
         throws Exception
     {
@@ -784,6 +821,7 @@ public class PomConstructionTest
         assertNotNull( pom );
     }
 
+    @Test
     public void testOrderOfPluginConfigurationElementsWithoutPluginManagement()
         throws Exception
     {
@@ -795,6 +833,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3827*/
+    @Test
     public void testOrderOfPluginConfigurationElementsWithPluginManagement()
         throws Exception
     {
@@ -805,6 +844,7 @@ public class PomConstructionTest
         assertEquals( "four", pom.getValue( "build/plugins[1]/configuration/stringParams/stringParam[4]" ) );
     }
 
+    @Test
     public void testOrderOfPluginExecutionConfigurationElementsWithoutPluginManagement()
         throws Exception
     {
@@ -819,6 +859,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3864*/
+    @Test
     public void testOrderOfPluginExecutionConfigurationElementsWithPluginManagement()
         throws Exception
     {
@@ -833,6 +874,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3836*/
+    @Test
     public void testMergeOfInheritedPluginConfiguration()
         throws Exception
     {
@@ -852,6 +894,7 @@ public class PomConstructionTest
     }
 
     /* MNG-2591 */
+    @Test
     public void testAppendOfInheritedPluginConfigurationWithNoProfile()
         throws Exception
     {
@@ -859,6 +902,7 @@ public class PomConstructionTest
     }
 
     /* MNG-2591*/
+    @Test
     public void testAppendOfInheritedPluginConfigurationWithActiveProfile()
         throws Exception
     {
@@ -891,6 +935,7 @@ public class PomConstructionTest
     }
 
     /* MNG-4000 */
+    @Test
     public void testMultiplePluginExecutionsWithAndWithoutIdsWithoutPluginManagement()
         throws Exception
     {
@@ -900,6 +945,7 @@ public class PomConstructionTest
         assertEquals( "log-string", pom.getValue( "build/plugins[1]/executions[2]/goals[1]" ) );
     }
 
+    @Test
     public void testMultiplePluginExecutionsWithAndWithoutIdsWithPluginManagement()
         throws Exception
     {
@@ -909,6 +955,7 @@ public class PomConstructionTest
         assertEquals( "log-string", pom.getValue( "build/plugins[1]/executions[2]/goals[1]" ) );
     }
 
+    @Test
     public void testDependencyOrderWithoutPluginManagement()
         throws Exception
     {
@@ -920,6 +967,7 @@ public class PomConstructionTest
         assertEquals( "d", pom.getValue( "dependencies[4]/artifactId" ) );
     }
 
+    @Test
     public void testDependencyOrderWithPluginManagement()
         throws Exception
     {
@@ -931,6 +979,7 @@ public class PomConstructionTest
         assertEquals( "d", pom.getValue( "dependencies[4]/artifactId" ) );
     }
 
+    @Test
     public void testBuildDirectoriesUsePlatformSpecificFileSeparator()
         throws Exception
     {
@@ -947,6 +996,7 @@ public class PomConstructionTest
     }
 
     /* MNG-4008 */
+    @Test
     public void testMergedFilterOrder()
         throws Exception
     {
@@ -963,6 +1013,7 @@ public class PomConstructionTest
     }
 
     /** MNG-4027*/
+    @Test
     public void testProfileInjectedDependencies()
         throws Exception
     {
@@ -975,6 +1026,7 @@ public class PomConstructionTest
     }
 
     /** IT-0021*/
+    @Test
     public void testProfileDependenciesMultipleProfiles()
         throws Exception
     {
@@ -982,6 +1034,7 @@ public class PomConstructionTest
         assertEquals(2,  ( (List<?>) pom.getValue( "dependencies" ) ).size() );
     }
 
+    @Test
     public void testDependencyInheritance()
         throws Exception
     {
@@ -991,6 +1044,7 @@ public class PomConstructionTest
     }
 
     /** MNG-4034 */
+    @Test
     public void testManagedProfileDependency()
         throws Exception
     {
@@ -1005,6 +1059,7 @@ public class PomConstructionTest
     }
 
     /** MNG-4040 */
+    @Test
     public void testProfileModuleInheritance()
         throws Exception
     {
@@ -1013,6 +1068,7 @@ public class PomConstructionTest
     }
 
     /** MNG-3621 */
+    @Test
     public void testUncPath()
         throws Exception
     {
@@ -1021,6 +1077,7 @@ public class PomConstructionTest
     }
 
     /** MNG-2006 */
+    @Test
     public void testUrlAppendWithChildPathAdjustment()
         throws Exception
     {
@@ -1033,6 +1090,7 @@ public class PomConstructionTest
     }
 
     /** MNG-0479 */
+    @Test
     public void testRepoInheritance()
         throws Exception
     {
@@ -1041,6 +1099,7 @@ public class PomConstructionTest
         assertEquals( "it0043", pom.getValue( "repositories[1]/name" ) );
     }
 
+    @Test
     public void testEmptyScm()
         throws Exception
     {
@@ -1048,6 +1107,7 @@ public class PomConstructionTest
         assertNull( pom.getValue( "scm" ) );
     }
 
+    @Test
     public void testPluginConfigurationUsingAttributesWithoutPluginManagement()
         throws Exception
     {
@@ -1060,6 +1120,7 @@ public class PomConstructionTest
     }
 
     /** MNG-4053*/
+    @Test
     public void testPluginConfigurationUsingAttributesWithPluginManagement()
         throws Exception
     {
@@ -1071,6 +1132,7 @@ public class PomConstructionTest
         assertEquals( null, pom.getValue( "build/plugins[1]/configuration/domParam/copy/fileset/@overwrite" ) );
     }
 
+    @Test
     public void testPluginConfigurationUsingAttributesWithPluginManagementAndProfile()
         throws Exception
     {
@@ -1082,6 +1144,7 @@ public class PomConstructionTest
         assertEquals( null, pom.getValue( "build/plugins[1]/configuration/domParam/copy/fileset/@overwrite" ) );
     }
 
+    @Test
     public void testPomEncoding()
         throws Exception
     {
@@ -1092,6 +1155,7 @@ public class PomConstructionTest
     }
 
     /* MNG-4070 */
+    @Test
     public void testXmlWhitespaceHandling()
         throws Exception
     {
@@ -1100,6 +1164,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3760*/
+    @Test
     public void testInterpolationOfBaseUri()
         throws Exception
     {
@@ -1108,6 +1173,7 @@ public class PomConstructionTest
     }
 
     /* MNG-6386 */
+    @Test
     public void testInterpolationOfRfc3986BaseUri()
         throws Exception
     {
@@ -1118,6 +1184,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3811*/
+    @Test
     public void testReportingPluginConfig()
         throws Exception
     {
@@ -1130,6 +1197,7 @@ public class PomConstructionTest
         assertEquals( "true", pom.getValue( "reporting/plugins[1]/configuration/booleanParam" ) );
     }
 
+    @Test
     public void testPropertiesNoDuplication()
         throws Exception
     {
@@ -1138,6 +1206,7 @@ public class PomConstructionTest
         assertEquals( "child", pom.getValue( "properties/pomProfile" ) );
     }
 
+    @Test
     public void testPomInheritance()
         throws Exception
     {
@@ -1146,6 +1215,7 @@ public class PomConstructionTest
         assertEquals( "jar", pom.getValue( "packaging" ) );
     }
 
+    @Test
     public void testCompleteModelWithoutParent()
         throws Exception
     {
@@ -1154,6 +1224,7 @@ public class PomConstructionTest
         testCompleteModel( pom );
     }
 
+    @Test
     public void testCompleteModelWithParent()
         throws Exception
     {
@@ -1369,7 +1440,7 @@ public class PomConstructionTest
     }
 
     /* MNG-2309*/
-
+    @Test
     public void testProfileInjectionOrder()
         throws Exception
     {
@@ -1378,6 +1449,7 @@ public class PomConstructionTest
         assertEquals( "e", pom.getValue( "properties[1]/pomProperty" ) );
     }
 
+    @Test
     public void testPropertiesInheritance()
         throws Exception
     {
@@ -1388,6 +1460,7 @@ public class PomConstructionTest
     }
 
     /* MNG-4102*/
+    @Test
     public void testInheritedPropertiesInterpolatedWithValuesFromChildWithoutProfiles()
         throws Exception
     {
@@ -1398,6 +1471,7 @@ public class PomConstructionTest
     }
 
     /* MNG-4102 */
+    @Test
     public void testInheritedPropertiesInterpolatedWithValuesFromChildWithActiveProfiles()
         throws Exception
     {
@@ -1411,6 +1485,7 @@ public class PomConstructionTest
     }
 
     /* MNG-3545 */
+    @Test
     public void testProfileDefaultActivation()
         throws Exception
     {
@@ -1421,6 +1496,7 @@ public class PomConstructionTest
     }
 
     /* MNG-1995 */
+    @Test
     public void testBooleanInterpolation()
         throws Exception
     {
@@ -1431,6 +1507,7 @@ public class PomConstructionTest
 
 
     /* MNG-3899 */
+    @Test
     public void testBuildExtensionInheritance()
         throws Exception
     {
@@ -1443,6 +1520,7 @@ public class PomConstructionTest
     }
 
     /*MNG-1957*/
+    @Test
     public void testJdkActivation()
         throws Exception
     {
@@ -1457,6 +1535,7 @@ public class PomConstructionTest
     }
 
     /* MNG-2174 */
+    @Test
     public void testProfilePluginMngDependencies()
         throws Exception
     {
@@ -1465,6 +1544,7 @@ public class PomConstructionTest
     }
 
     /** MNG-4116 */
+    @Test
     public void testPercentEncodedUrlsMustNotBeDecoded()
         throws Exception
     {
@@ -1483,6 +1563,7 @@ public class PomConstructionTest
                       pom.getValue( "distributionManagement/site/url" ) );
     }
 
+    @Test
     public void testPluginManagementInheritance()
         throws Exception
     {
@@ -1491,6 +1572,7 @@ public class PomConstructionTest
                       pom.getValue( "build/pluginManagement/plugins[@artifactId='maven-compiler-plugin']/version" ) );
     }
 
+    @Test
     public void testProfilePlugins()
         throws Exception
     {
@@ -1499,6 +1581,7 @@ public class PomConstructionTest
         assertEquals( "maven-assembly2-plugin", pom.getValue( "build/plugins[2]/artifactId" ) );
     }
 
+    @Test
     public void testPluginInheritanceSimple()
         throws Exception
     {
@@ -1506,6 +1589,7 @@ public class PomConstructionTest
         assertEquals( 2, ( (List<?>) pom.getValue( "build/plugins" ) ).size() );
     }
 
+    @Test
     public void testPluginManagementDuplicate()
         throws Exception
     {
@@ -1513,6 +1597,7 @@ public class PomConstructionTest
         assertEquals( 8, ( (List<?>) pom.getValue( "build/pluginManagement/plugins" ) ).size() );
     }
 
+    @Test
     public void testDistributionManagement()
         throws Exception
     {
@@ -1520,6 +1605,7 @@ public class PomConstructionTest
         assertEquals( "legacy", pom.getValue( "distributionManagement/repository/layout" ) );
     }
 
+    @Test
     public void testDependencyScopeInheritance()
         throws Exception
     {
@@ -1528,6 +1614,7 @@ public class PomConstructionTest
         assertEquals( "compile", scope );
     }
 
+    @Test
     public void testDependencyScope()
         throws Exception
     {
@@ -1541,6 +1628,7 @@ public class PomConstructionTest
         buildPom( "dependency-management-with-interpolation/sub" );
     }
 
+    @Test
     public void testInterpolationWithSystemProperty()
         throws Exception
     {
@@ -1551,6 +1639,7 @@ public class PomConstructionTest
     }
 
     /* MNG-4129 */
+    @Test
     public void testPluginExecutionInheritanceWhenChildDoesNotDeclarePlugin()
         throws Exception
     {
@@ -1562,6 +1651,7 @@ public class PomConstructionTest
         assertEquals( "inherited-execution", executions.get( 0 ).getId() );
     }
 
+    @Test
     public void testPluginExecutionInheritanceWhenChildDoesDeclarePluginAsWell()
         throws Exception
     {
@@ -1574,66 +1664,51 @@ public class PomConstructionTest
     }
 
     /* MNG-4193 */
+    @Test
     public void testValidationErrorUponNonUniqueArtifactRepositoryId()
         throws Exception
     {
-        try
-        {
-            buildPom( "unique-repo-id/artifact-repo" );
-            fail( "Non-unique repository ids did not cause validation error" );
-        }
-        catch ( ProjectBuildingException e )
-        {
-            // expected
-        }
+        assertThrows(
+                ProjectBuildingException.class,
+                () -> buildPom( "unique-repo-id/artifact-repo" ),
+                "Non-unique repository ids did not cause validation error" );
     }
 
     /* MNG-4193 */
+    @Test
     public void testValidationErrorUponNonUniquePluginRepositoryId()
         throws Exception
     {
-        try
-        {
-            buildPom( "unique-repo-id/plugin-repo" );
-            fail( "Non-unique repository ids did not cause validation error" );
-        }
-        catch ( ProjectBuildingException e )
-        {
-            // expected
-        }
+        assertThrows(
+                ProjectBuildingException.class,
+                () -> buildPom( "unique-repo-id/plugin-repo" ),
+                "Non-unique repository ids did not cause validation error" );
     }
 
     /* MNG-4193 */
+    @Test
     public void testValidationErrorUponNonUniqueArtifactRepositoryIdInProfile()
         throws Exception
     {
-        try
-        {
-            buildPom( "unique-repo-id/artifact-repo-in-profile" );
-            fail( "Non-unique repository ids did not cause validation error" );
-        }
-        catch ( ProjectBuildingException e )
-        {
-            // expected
-        }
+        assertThrows(
+                ProjectBuildingException.class,
+                () -> buildPom( "unique-repo-id/artifact-repo-in-profile" ),
+                "Non-unique repository ids did not cause validation error" );
     }
 
     /* MNG-4193 */
+    @Test
     public void testValidationErrorUponNonUniquePluginRepositoryIdInProfile()
         throws Exception
     {
-        try
-        {
-            buildPom( "unique-repo-id/plugin-repo-in-profile" );
-            fail( "Non-unique repository ids did not cause validation error" );
-        }
-        catch ( ProjectBuildingException e )
-        {
-            // expected
-        }
+        assertThrows(
+                ProjectBuildingException.class,
+                () -> buildPom( "unique-repo-id/plugin-repo-in-profile" ),
+                "Non-unique repository ids did not cause validation error" );
     }
 
     /** MNG-3843 */
+    @Test
     public void testPrerequisitesAreNotInherited()
         throws Exception
     {
@@ -1641,6 +1716,7 @@ public class PomConstructionTest
         assertSame( null, pom.getValue( "prerequisites" ) );
     }
 
+    @Test
     public void testLicensesAreInheritedButNotAggregated()
         throws Exception
     {
@@ -1650,6 +1726,7 @@ public class PomConstructionTest
         assertEquals( "https://child.url/license", pom.getValue( "licenses[1]/url" ) );
     }
 
+    @Test
     public void testDevelopersAreInheritedButNotAggregated()
         throws Exception
     {
@@ -1658,6 +1735,7 @@ public class PomConstructionTest
         assertEquals( "child-developer", pom.getValue( "developers[1]/name" ) );
     }
 
+    @Test
     public void testContributorsAreInheritedButNotAggregated()
         throws Exception
     {
@@ -1666,6 +1744,7 @@ public class PomConstructionTest
         assertEquals( "child-contributor", pom.getValue( "contributors[1]/name" ) );
     }
 
+    @Test
     public void testMailingListsAreInheritedButNotAggregated()
         throws Exception
     {
@@ -1674,6 +1753,7 @@ public class PomConstructionTest
         assertEquals( "child-mailing-list", pom.getValue( "mailingLists[1]/name" ) );
     }
 
+    @Test
     public void testPluginInheritanceOrder()
         throws Exception
     {
@@ -1688,6 +1768,7 @@ public class PomConstructionTest
         assertEquals( "maven-it-plugin-configuration", pom.getValue( "reporting/plugins[3]/artifactId" ) );
     }
 
+    @Test
     public void testCliPropsDominateProjectPropsDuringInterpolation()
         throws Exception
     {
@@ -1698,21 +1779,18 @@ public class PomConstructionTest
         assertEquals( "PASSED", pom.getValue( "properties/interpolatedProperty" ) );
     }
 
+    @Test
     public void testParentPomPackagingMustBePom()
         throws Exception
     {
-        try
-        {
-            buildPom( "parent-pom-packaging/sub" );
-            fail( "Wrong packaging of parent POM was not rejected" );
-        }
-        catch ( ProjectBuildingException e )
-        {
-            // expected
-        }
+        assertThrows(
+                ProjectBuildingException.class,
+                () -> buildPom( "parent-pom-packaging/sub" ),
+                "Wrong packaging of parent POM was not rejected" );
     }
 
     /** MNG-522, MNG-3018 */
+    @Test
     public void testManagedPluginConfigurationAppliesToImplicitPluginsIntroducedByPackaging()
         throws Exception
     {
@@ -1723,6 +1801,7 @@ public class PomConstructionTest
                       pom.getValue( "build/plugins[@artifactId='maven-it-plugin-log-file']/configuration/logFile" ) );
     }
 
+    @Test
     public void testDefaultPluginsExecutionContributedByPackagingExecuteBeforeUserDefinedExecutions()
         throws Exception
     {
@@ -1738,6 +1817,7 @@ public class PomConstructionTest
         assertEquals( "test-2", executions.get( 3 ).getId() );
     }
 
+    @Test
     public void testPluginDeclarationsRetainPomOrderAfterInjectionOfDefaultPlugins()
         throws Exception
     {
@@ -1760,10 +1840,11 @@ public class PomConstructionTest
                 customPlugin = i;
             }
         }
-        assertEquals( plugins.toString(), customPlugin, resourcesPlugin - 1 );
+        assertEquals( customPlugin, resourcesPlugin - 1, plugins.toString() );
     }
 
     /** MNG-4415 */
+    @Test
     public void testPluginOrderAfterMergingWithInheritedPlugins()
         throws Exception
     {
@@ -1793,6 +1874,7 @@ public class PomConstructionTest
     }
 
     /** MNG-4416 */
+    @Test
     public void testPluginOrderAfterMergingWithInjectedPlugins()
         throws Exception
     {
@@ -1821,18 +1903,14 @@ public class PomConstructionTest
         assertEquals( actual, expected );
     }
 
+    @Test
     public void testProjectArtifactIdIsNotInheritedButMandatory()
         throws Exception
     {
-        try
-        {
-            buildPom( "artifact-id-inheritance/child" );
-            fail( "Missing artifactId did not cause validation error" );
-        }
-        catch ( ProjectBuildingException e )
-        {
-            // expected
-        }
+        assertThrows(
+                ProjectBuildingException.class,
+                () -> buildPom( "artifact-id-inheritance/child" ),
+                "Missing artifactId did not cause validation error" );
     }
 
     private void assertPathSuffixEquals( String expected, Object actual )
diff --git a/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java b/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java
index 74c19a8edf..506a84470b 100644
--- a/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java
@@ -19,14 +19,6 @@ package org.apache.maven.project;
  * under the License.
  */
 
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.containsString;
-import static org.hamcrest.Matchers.empty;
-import static org.hamcrest.Matchers.greaterThan;
-import static org.hamcrest.Matchers.hasKey;
-import static org.hamcrest.Matchers.is;
-import static org.junit.Assert.assertThrows;
-
 import java.io.File;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -42,6 +34,18 @@ import org.apache.maven.model.building.FileModelSource;
 import org.apache.maven.model.building.ModelBuildingRequest;
 import org.apache.maven.model.building.ModelSource;
 import org.apache.maven.shared.utils.io.FileUtils;
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.Matchers.empty;
+import static org.hamcrest.Matchers.greaterThan;
+import static org.hamcrest.Matchers.hasKey;
+import static org.hamcrest.Matchers.is;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 
 public class ProjectBuilderTest
@@ -53,6 +57,7 @@ public class ProjectBuilderTest
         return "src/test/projects/project-builder";
     }
 
+    @Test
     public void testSystemScopeDependencyIsPresentInTheCompileClasspathElements()
         throws Exception
     {
@@ -70,6 +75,7 @@ public class ProjectBuilderTest
         project.getCompileClasspathElements();
     }
 
+    @Test
     public void testBuildFromModelSource()
         throws Exception
     {
@@ -84,6 +90,7 @@ public class ProjectBuilderTest
         assertNotNull( result.getProject().getParentFile() );
     }
 
+    @Test
     public void testVersionlessManagedDependency()
         throws Exception
     {
@@ -99,6 +106,7 @@ public class ProjectBuilderTest
                         + "@ line 9, column 17" ) );
     }
 
+    @Test
     public void testResolveDependencies()
         throws Exception
     {
@@ -120,6 +128,7 @@ public class ProjectBuilderTest
         assertEquals( 1, mavenProject.getArtifacts().size() );
     }
 
+    @Test
     public void testDontResolveDependencies()
         throws Exception
     {
@@ -139,6 +148,7 @@ public class ProjectBuilderTest
         assertEquals( 0, mavenProject.getArtifacts().size() );
     }
 
+    @Test
     public void testReadModifiedPoms() throws Exception {
         String initialValue = System.setProperty( DefaultProjectBuilder.DISABLE_GLOBAL_MODEL_CACHE_SYSTEM_PROPERTY, Boolean.toString( true ) );
         // TODO a similar test should be created to test the dependency management (basically all usages
@@ -179,6 +189,7 @@ public class ProjectBuilderTest
         }
     }
 
+    @Test
     public void testReadErroneousMavenProjectContainsReference()
         throws Exception
     {
@@ -212,6 +223,7 @@ public class ProjectBuilderTest
         assertEquals( pomFile, project2.getFile() );
     }
 
+    @Test
     public void testReadInvalidPom()
         throws Exception
     {
@@ -237,6 +249,7 @@ public class ProjectBuilderTest
         assertThat( pex.getMessage(), containsString( "expected START_TAG or END_TAG not TEXT" ) );
     }
 
+    @Test
     public void testReadParentAndChildWithRegularVersionSetParentFile()
         throws Exception
     {
@@ -297,6 +310,7 @@ public class ProjectBuilderTest
         }
     }
 
+    @Test
     public void testBuildProperties()
             throws Exception
     {
@@ -314,6 +328,7 @@ public class ProjectBuilderTest
         assertEquals( 1, project.getResources().size() );
     }
 
+    @Test
     public void testPropertyInPluginManagementGroupId()
             throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/project/ProjectModelResolverTest.java b/maven-core/src/test/java/org/apache/maven/project/ProjectModelResolverTest.java
index fb1c642382..4c1dcf4427 100644
--- a/maven-core/src/test/java/org/apache/maven/project/ProjectModelResolverTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/ProjectModelResolverTest.java
@@ -19,9 +19,6 @@ package org.apache.maven.project;
  * under the License.
  */
 
-import static org.hamcrest.Matchers.startsWith;
-import static org.junit.Assert.assertThat;
-
 import java.io.File;
 import java.util.Collections;
 import java.util.List;
@@ -36,6 +33,13 @@ import org.eclipse.aether.DefaultRepositorySystemSession;
 import org.eclipse.aether.RepositorySystem;
 import org.eclipse.aether.impl.RemoteRepositoryManager;
 import org.eclipse.aether.repository.RemoteRepository;
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.Matchers.startsWith;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 /**
  * Test cases for the project {@code ModelResolver} implementation.
@@ -54,6 +58,7 @@ public class ProjectModelResolverTest extends AbstractMavenProjectTestCase
         super();
     }
 
+    @Test
     public void testResolveParentThrowsUnresolvableModelExceptionWhenNotFound() throws Exception
     {
         final Parent parent = new Parent();
@@ -61,18 +66,15 @@ public class ProjectModelResolverTest extends AbstractMavenProjectTestCase
         parent.setArtifactId( "apache" );
         parent.setVersion( "0" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( parent );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertNotNull( e.getMessage() );
-            assertThat( e.getMessage(), startsWith( "Could not find artifact org.apache:apache:pom:0 in central" ) );
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( parent ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertNotNull( e.getMessage() );
+        assertThat( e.getMessage(), startsWith( "Could not find artifact org.apache:apache:pom:0 in central" ) );
     }
 
+    @Test
     public void testResolveParentThrowsUnresolvableModelExceptionWhenNoMatchingVersionFound() throws Exception
     {
         final Parent parent = new Parent();
@@ -80,19 +82,15 @@ public class ProjectModelResolverTest extends AbstractMavenProjectTestCase
         parent.setArtifactId( "apache" );
         parent.setVersion( "[2.0,2.1)" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( parent );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertEquals( "No versions matched the requested parent version range '[2.0,2.1)'",
-                          e.getMessage() );
-
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( parent ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertEquals( "No versions matched the requested parent version range '[2.0,2.1)'",
+                      e.getMessage() );
     }
 
+    @Test
     public void testResolveParentThrowsUnresolvableModelExceptionWhenUsingRangesWithoutUpperBound() throws Exception
     {
         final Parent parent = new Parent();
@@ -100,19 +98,15 @@ public class ProjectModelResolverTest extends AbstractMavenProjectTestCase
         parent.setArtifactId( "apache" );
         parent.setVersion( "[1,)" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( parent );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertEquals( "The requested parent version range '[1,)' does not specify an upper bound",
-                          e.getMessage() );
-
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( parent ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertEquals( "The requested parent version range '[1,)' does not specify an upper bound",
+                      e.getMessage() );
     }
 
+    @Test
     public void testResolveParentSuccessfullyResolvesExistingParentWithoutRange() throws Exception
     {
         final Parent parent = new Parent();
@@ -124,6 +118,7 @@ public class ProjectModelResolverTest extends AbstractMavenProjectTestCase
         assertEquals( "1", parent.getVersion() );
     }
 
+    @Test
     public void testResolveParentSuccessfullyResolvesExistingParentUsingHighestVersion() throws Exception
     {
         final Parent parent = new Parent();
@@ -135,6 +130,7 @@ public class ProjectModelResolverTest extends AbstractMavenProjectTestCase
         assertEquals( "1", parent.getVersion() );
     }
 
+    @Test
     public void testResolveDependencyThrowsUnresolvableModelExceptionWhenNotFound() throws Exception
     {
         final Dependency dependency = new Dependency();
@@ -142,18 +138,15 @@ public class ProjectModelResolverTest extends AbstractMavenProjectTestCase
         dependency.setArtifactId( "apache" );
         dependency.setVersion( "0" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( dependency );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertNotNull( e.getMessage() );
-            assertThat( e.getMessage(), startsWith( "Could not find artifact org.apache:apache:pom:0 in central" ) );
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( dependency ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertNotNull( e.getMessage() );
+        assertThat( e.getMessage(), startsWith( "Could not find artifact org.apache:apache:pom:0 in central" ) );
     }
 
+    @Test
     public void testResolveDependencyThrowsUnresolvableModelExceptionWhenNoMatchingVersionFound() throws Exception
     {
         final Dependency dependency = new Dependency();
@@ -161,19 +154,15 @@ public class ProjectModelResolverTest extends AbstractMavenProjectTestCase
         dependency.setArtifactId( "apache" );
         dependency.setVersion( "[2.0,2.1)" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( dependency );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertEquals( "No versions matched the requested dependency version range '[2.0,2.1)'",
-                          e.getMessage() );
-
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( dependency ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertEquals( "No versions matched the requested dependency version range '[2.0,2.1)'",
+                      e.getMessage() );
     }
 
+    @Test
     public void testResolveDependencyThrowsUnresolvableModelExceptionWhenUsingRangesWithoutUpperBound() throws Exception
     {
         final Dependency dependency = new Dependency();
@@ -181,19 +170,15 @@ public class ProjectModelResolverTest extends AbstractMavenProjectTestCase
         dependency.setArtifactId( "apache" );
         dependency.setVersion( "[1,)" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( dependency );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertEquals( "The requested dependency version range '[1,)' does not specify an upper bound",
-                          e.getMessage() );
-
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( dependency ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertEquals( "The requested dependency version range '[1,)' does not specify an upper bound",
+                      e.getMessage() );
     }
 
+    @Test
     public void testResolveDependencySuccessfullyResolvesExistingDependencyWithoutRange() throws Exception
     {
         final Dependency dependency = new Dependency();
@@ -205,6 +190,7 @@ public class ProjectModelResolverTest extends AbstractMavenProjectTestCase
         assertEquals( "1", dependency.getVersion() );
     }
 
+    @Test
     public void testResolveDependencySuccessfullyResolvesExistingDependencyUsingHighestVersion() throws Exception
     {
         final Dependency dependency = new Dependency();
diff --git a/maven-core/src/test/java/org/apache/maven/project/ProjectSorterTest.java b/maven-core/src/test/java/org/apache/maven/project/ProjectSorterTest.java
index 1ca124f130..ec15951059 100644
--- a/maven-core/src/test/java/org/apache/maven/project/ProjectSorterTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/ProjectSorterTest.java
@@ -20,8 +20,9 @@ package org.apache.maven.project;
  */
 
 import static org.hamcrest.Matchers.hasItem;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -34,9 +35,7 @@ import org.apache.maven.model.Model;
 import org.apache.maven.model.Parent;
 import org.apache.maven.model.Plugin;
 import org.apache.maven.model.PluginManagement;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.ExpectedException;
+import org.junit.jupiter.api.Test;
 
 /**
  * Test sorting projects by dependencies.
@@ -45,9 +44,6 @@ import org.junit.rules.ExpectedException;
  */
 public class ProjectSorterTest
 {
-    @Rule
-    public ExpectedException expectedException = ExpectedException.none();
-
     private Parent createParent( MavenProject project )
     {
         return createParent( project.getGroupId(), project.getArtifactId(), project.getVersion() );
@@ -210,10 +206,10 @@ public class ProjectSorterTest
         MavenProject project2 = createProject( "groupId", "artifactId", "1.0" );
         projects.add( project2 );
 
-        expectedException.expect( DuplicateProjectException.class );
-        expectedException.reportMissingExceptionWithMessage( "Duplicate projects should fail" );
-
-        new ProjectSorter( projects ).getSortedProjects();
+        assertThrows(
+                DuplicateProjectException.class,
+                () -> new ProjectSorter( projects ).getSortedProjects(),
+                "Duplicate projects should fail" );
     }
 
     @Test
diff --git a/maven-core/src/test/java/org/apache/maven/project/artifact/DefaultMavenMetadataCacheTest.java b/maven-core/src/test/java/org/apache/maven/project/artifact/DefaultMavenMetadataCacheTest.java
index c039934692..2d5c1baa7f 100644
--- a/maven-core/src/test/java/org/apache/maven/project/artifact/DefaultMavenMetadataCacheTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/artifact/DefaultMavenMetadataCacheTest.java
@@ -29,32 +29,35 @@ import org.apache.maven.project.artifact.DefaultMavenMetadataCache.CacheKey;
 import org.apache.maven.repository.DelegatingLocalArtifactRepository;
 import org.apache.maven.repository.RepositorySystem;
 import org.apache.maven.repository.TestRepositorySystem;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.BeforeEach;
 
-import junit.framework.TestCase;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
 
 /**
  * @author Igor Fedorenko
  */
 public class DefaultMavenMetadataCacheTest
-    extends TestCase
 {
     private RepositorySystem repositorySystem;
 
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
-        super.setUp();
         repositorySystem = new TestRepositorySystem( null, null );
     }
 
-    @Override
-    protected void tearDown()
+    @AfterEach
+    public void tearDown()
         throws Exception
     {
         repositorySystem = null;
-        super.tearDown();
     }
 
+    @Test
     public void testCacheKey()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/project/artifact/DefaultProjectArtifactsCacheTest.java b/maven-core/src/test/java/org/apache/maven/project/artifact/DefaultProjectArtifactsCacheTest.java
index cbe4b35865..16317ff62e 100644
--- a/maven-core/src/test/java/org/apache/maven/project/artifact/DefaultProjectArtifactsCacheTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/artifact/DefaultProjectArtifactsCacheTest.java
@@ -19,29 +19,28 @@ package org.apache.maven.project.artifact;
  * under the License.
  */
 
-import static org.junit.Assert.assertArrayEquals;
-
 import java.util.LinkedHashSet;
 import java.util.Set;
 
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.DefaultArtifact;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-import junit.framework.TestCase;
-
-public class DefaultProjectArtifactsCacheTest extends TestCase
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+public class DefaultProjectArtifactsCacheTest
 {
 
     private ProjectArtifactsCache cache;
 
-    @Override
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
-        super.setUp();
         cache = new DefaultProjectArtifactsCache();
     }
 
+    @Test
     public void testProjectDependencyOrder() throws Exception
     {
         ProjectArtifactsCache.Key project1 = new ProjectArtifactsCache.Key(){};
diff --git a/maven-core/src/test/java/org/apache/maven/project/artifact/MavenMetadataSourceTest.java b/maven-core/src/test/java/org/apache/maven/project/artifact/MavenMetadataSourceTest.java
index beaa1493a5..a69af5e4ad 100644
--- a/maven-core/src/test/java/org/apache/maven/project/artifact/MavenMetadataSourceTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/artifact/MavenMetadataSourceTest.java
@@ -19,45 +19,23 @@ package org.apache.maven.project.artifact;
  * under the License.
  */
 
+import org.apache.maven.test.PlexusTestCase;
 import org.apache.maven.repository.RepositorySystem;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusTestCase;
-import org.junit.Ignore;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
 
 import javax.inject.Inject;
-import java.util.Collections;
 
-@Ignore
+@Disabled
 public class MavenMetadataSourceTest
     extends PlexusTestCase
 {
     @Inject
     private RepositorySystem repositorySystem;
 
-    @Override
-    protected synchronized void setupContainer()
-    {
-        super.setupContainer();
-
-        ( (DefaultPlexusContainer) getContainer() ).addPlexusInjector( Collections.emptyList(),
-                binder -> binder.requestInjection( this ) );
-    }
-
-    @Override
-    protected void setUp() throws Exception
-    {
-        super.setUp();
-        getContainer();
-    }
-
-    @Override
-    protected void tearDown()
-        throws Exception
-    {
-        repositorySystem = null;
-        super.tearDown();
-    }
-
+    @Test
     public void testShouldNotCarryExclusionsOverFromDependencyToDependency()
         throws Exception
     {
@@ -132,18 +110,19 @@ public class MavenMetadataSourceTest
 
         Map artifactMap = project.getArtifactMap();
 
-        assertNotNull( "artifact-map should not be null.", artifactMap );
+        assertNotNull( artifactMap, "artifact-map should not be null." );
         assertEquals( "artifact-map should contain 1 element.", 1, artifactMap.size() );
 
         Artifact artifact = (Artifact) artifactMap.get( key );
 
-        assertNotNull( "dependency artifact not found in map.", artifact );
+        assertNotNull( artifact, "dependency artifact not found in map." );
         assertEquals( "dependency artifact has wrong scope.", Artifact.SCOPE_COMPILE, artifact.getScope() );
 
         //check for back-propagation of default scope.
         assertEquals( "default scope NOT back-propagated to dependency.", Artifact.SCOPE_COMPILE, dep.getScope() );
     }
 
+    @Test
     public void testShouldUseInjectedTestScopeFromDependencyManagement()
         throws Exception
     {
@@ -183,12 +162,12 @@ public class MavenMetadataSourceTest
 
         Map artifactMap = project.getArtifactMap();
 
-        assertNotNull( "artifact-map should not be null.", artifactMap );
+        assertNotNull( artifactMap, "artifact-map should not be null." );
         assertEquals( "artifact-map should contain 1 element.", 1, artifactMap.size() );
 
         Artifact artifact = (Artifact) artifactMap.get( key );
 
-        assertNotNull( "dependency artifact not found in map.", artifact );
+        assertNotNull( artifact, "dependency artifact not found in map." );
         assertEquals( "dependency artifact has wrong scope.", Artifact.SCOPE_TEST, artifact.getScope() );
 
         //check for back-propagation of default scope.
diff --git a/maven-core/src/test/java/org/apache/maven/project/canonical/CanonicalProjectBuilderTest.java b/maven-core/src/test/java/org/apache/maven/project/canonical/CanonicalProjectBuilderTest.java
index 8b6454da11..f966237c33 100644
--- a/maven-core/src/test/java/org/apache/maven/project/canonical/CanonicalProjectBuilderTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/canonical/CanonicalProjectBuilderTest.java
@@ -27,6 +27,10 @@ import org.apache.maven.model.PluginExecution;
 import org.apache.maven.project.AbstractMavenProjectTestCase;
 import org.apache.maven.project.MavenProject;
 import org.codehaus.plexus.util.xml.Xpp3Dom;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  * @author Jason van Zyl
@@ -34,6 +38,7 @@ import org.codehaus.plexus.util.xml.Xpp3Dom;
 public class CanonicalProjectBuilderTest
     extends AbstractMavenProjectTestCase
 {
+    @Test
     public void testProjectBuilder()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/rtinfo/internal/DefaultRuntimeInformationTest.java b/maven-core/src/test/java/org/apache/maven/rtinfo/internal/DefaultRuntimeInformationTest.java
index 9e5d6eaadb..46487377c1 100644
--- a/maven-core/src/test/java/org/apache/maven/rtinfo/internal/DefaultRuntimeInformationTest.java
+++ b/maven-core/src/test/java/org/apache/maven/rtinfo/internal/DefaultRuntimeInformationTest.java
@@ -21,12 +21,17 @@ package org.apache.maven.rtinfo.internal;
 
 import org.apache.maven.rtinfo.RuntimeInformation;
 import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
 import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
+import org.apache.maven.test.PlexusTestCase;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import javax.inject.Inject;
-import java.util.Collections;
 
 public class DefaultRuntimeInformationTest
     extends PlexusTestCase
@@ -43,21 +48,7 @@ public class DefaultRuntimeInformationTest
         configuration.setClassPathScanning(PlexusConstants.SCANNING_INDEX);
     }
 
-    @Override
-    protected void setUp() throws Exception
-    {
-        super.setUp();
-        getContainer();
-    }
-    @Override
-    protected synchronized void setupContainer()
-    {
-        super.setupContainer();
-
-        ( (DefaultPlexusContainer) getContainer() ).addPlexusInjector( Collections.emptyList(),
-                binder -> binder.requestInjection( this ) );
-    }
-
+    @Test
     public void testGetMavenVersion()
     {
         String mavenVersion = rtInfo.getMavenVersion();
@@ -65,6 +56,7 @@ public class DefaultRuntimeInformationTest
         assertTrue( mavenVersion.length() > 0 );
     }
 
+    @Test
     public void testIsMavenVersion()
     {
         assertTrue( rtInfo.isMavenVersion( "2.0" ) );
@@ -73,35 +65,20 @@ public class DefaultRuntimeInformationTest
         assertTrue( rtInfo.isMavenVersion( "[2.0.11,2.1.0),[3.0,)" ) );
         assertFalse( rtInfo.isMavenVersion( "[9.0,)" ) );
 
-        try
-        {
-            rtInfo.isMavenVersion( "[3.0," );
-            fail( "Bad version range wasn't rejected" );
-        }
-        catch ( IllegalArgumentException e )
-        {
-            assertTrue( true );
-        }
+        assertThrows(
+                IllegalArgumentException.class,
+                () -> rtInfo.isMavenVersion( "[3.0," ),
+                "Bad version range wasn't rejected" );
 
-        try
-        {
-            rtInfo.isMavenVersion( "" );
-            fail( "Bad version range wasn't rejected" );
-        }
-        catch ( IllegalArgumentException e )
-        {
-            assertTrue( true );
-        }
+        assertThrows(
+                IllegalArgumentException.class,
+                () -> rtInfo.isMavenVersion( "" ),
+                "Bad version range wasn't rejected" );
 
-        try
-        {
-            rtInfo.isMavenVersion( null );
-            fail( "Bad version range wasn't rejected" );
-        }
-        catch ( NullPointerException e )
-        {
-            assertTrue( true );
-        }
+        assertThrows(
+                NullPointerException.class,
+                () -> rtInfo.isMavenVersion( null ),
+                "Bad version range wasn't rejected" );
     }
 
 }
diff --git a/maven-core/src/test/java/org/apache/maven/settings/PomConstructionWithSettingsTest.java b/maven-core/src/test/java/org/apache/maven/settings/PomConstructionWithSettingsTest.java
index 4d66b0fe49..b9c9734d36 100644
--- a/maven-core/src/test/java/org/apache/maven/settings/PomConstructionWithSettingsTest.java
+++ b/maven-core/src/test/java/org/apache/maven/settings/PomConstructionWithSettingsTest.java
@@ -19,6 +19,10 @@ package org.apache.maven.settings;
  * under the License.
  */
 
+import java.io.File;
+import java.io.IOException;
+import java.io.Reader;
+
 import org.apache.maven.artifact.repository.layout.DefaultRepositoryLayout;
 import org.apache.maven.model.Profile;
 import org.apache.maven.project.DefaultProjectBuilder;
@@ -28,21 +32,18 @@ import org.apache.maven.project.harness.PomTestWrapper;
 import org.apache.maven.repository.RepositorySystem;
 import org.apache.maven.repository.internal.MavenRepositorySystemUtils;
 import org.apache.maven.settings.io.xpp3.SettingsXpp3Reader;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.DefaultPlexusContainer;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
+import org.apache.maven.test.PlexusTestCase;
 import org.codehaus.plexus.util.ReaderFactory;
 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
 import org.eclipse.aether.DefaultRepositorySystemSession;
 import org.eclipse.aether.internal.impl.SimpleLocalRepositoryManagerFactory;
 import org.eclipse.aether.repository.LocalRepository;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 import javax.inject.Inject;
-import java.io.File;
-import java.io.IOException;
-import java.io.Reader;
-import java.util.Collections;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class PomConstructionWithSettingsTest
     extends PlexusTestCase
@@ -59,39 +60,15 @@ public class PomConstructionWithSettingsTest
 
     private File testDirectory;
 
-    @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected synchronized void setupContainer()
-    {
-        super.setupContainer();
-
-        ( (DefaultPlexusContainer) getContainer() ).addPlexusInjector( Collections.emptyList(),
-                binder -> binder.requestInjection( this ) );
-    }
-
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
-        getContainer();
+        super.setUp();
         testDirectory = new File( getBasedir(), BASE_POM_DIR );
     }
 
-    @Override
-    protected void tearDown()
-        throws Exception
-    {
-        projectBuilder = null;
-
-        super.tearDown();
-    }
-
+    @Test
     public void testSettingsNoPom()
         throws Exception
     {
@@ -102,6 +79,7 @@ public class PomConstructionWithSettingsTest
     /**
      * MNG-4107
      */
+    @Test
     public void testPomAndSettingsInterpolation()
         throws Exception
     {
@@ -115,6 +93,7 @@ public class PomConstructionWithSettingsTest
     /**
      * MNG-4107
      */
+    @Test
     public void testRepositories()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/settings/SettingsUtilsTest.java b/maven-core/src/test/java/org/apache/maven/settings/SettingsUtilsTest.java
index 78818c5750..6943c34238 100644
--- a/maven-core/src/test/java/org/apache/maven/settings/SettingsUtilsTest.java
+++ b/maven-core/src/test/java/org/apache/maven/settings/SettingsUtilsTest.java
@@ -19,17 +19,20 @@ package org.apache.maven.settings;
  * under the License.
  */
 
-import junit.framework.TestCase;
-
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Properties;
 import java.util.Random;
 
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
 public class SettingsUtilsTest
-    extends TestCase
 {
 
+    @Test
     public void testShouldAppendRecessivePluginGroupIds()
     {
         Settings dominant = new Settings();
@@ -50,6 +53,7 @@ public class SettingsUtilsTest
         assertEquals( "org.codehaus.plexus", pluginGroups.get( 2 ) );
     }
 
+    @Test
     public void testRoundTripProfiles()
     {
         Random entropy = new Random();
diff --git a/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainManagerPrivateTest.java b/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainManagerPrivateTest.java
index 896b59c327..523645f187 100644
--- a/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainManagerPrivateTest.java
+++ b/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainManagerPrivateTest.java
@@ -19,7 +19,7 @@ package org.apache.maven.toolchain;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
@@ -36,8 +36,8 @@ import org.apache.maven.execution.MavenExecutionRequest;
 import org.apache.maven.execution.MavenSession;
 import org.apache.maven.toolchain.model.ToolchainModel;
 import org.codehaus.plexus.logging.Logger;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
@@ -57,7 +57,7 @@ public class DefaultToolchainManagerPrivateTest
     @Mock
     private ToolchainFactory toolchainFactory_rareType;
 
-    @Before
+    @BeforeEach
     public void setUp()
     {
         toolchainManager = new DefaultToolchainManagerPrivate();
diff --git a/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainManagerTest.java b/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainManagerTest.java
index 84444c08ed..c5b808ffa8 100644
--- a/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainManagerTest.java
+++ b/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainManagerTest.java
@@ -19,7 +19,7 @@ package org.apache.maven.toolchain;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.mockito.Matchers.isA;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
@@ -36,8 +36,8 @@ import org.apache.maven.execution.MavenExecutionRequest;
 import org.apache.maven.execution.MavenSession;
 import org.apache.maven.toolchain.model.ToolchainModel;
 import org.codehaus.plexus.logging.Logger;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.mockito.ArgumentMatchers;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
@@ -58,7 +58,7 @@ public class DefaultToolchainManagerTest
     @Mock
     private ToolchainFactory toolchainFactory_rareType;
 
-    @Before
+    @BeforeEach
     public void onSetup() throws Exception
     {
         toolchainManager = new DefaultToolchainManager();
diff --git a/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainTest.java b/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainTest.java
index 3b75455851..a5d14b29f7 100644
--- a/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainTest.java
+++ b/maven-core/src/test/java/org/apache/maven/toolchain/DefaultToolchainTest.java
@@ -19,9 +19,9 @@ package org.apache.maven.toolchain;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
 import static org.mockito.Mockito.verify;
 
 import java.io.InputStream;
@@ -32,8 +32,8 @@ import org.apache.maven.toolchain.model.PersistedToolchains;
 import org.apache.maven.toolchain.model.ToolchainModel;
 import org.apache.maven.toolchain.model.io.xpp3.MavenToolchainsXpp3Reader;
 import org.codehaus.plexus.logging.Logger;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
@@ -44,7 +44,7 @@ public class DefaultToolchainTest
 
     private MavenToolchainsXpp3Reader reader = new MavenToolchainsXpp3Reader();
 
-    @Before
+    @BeforeEach
     public void setUp()
         throws Exception
     {
diff --git a/maven-core/src/test/java/org/apache/maven/toolchain/RequirementMatcherFactoryTest.java b/maven-core/src/test/java/org/apache/maven/toolchain/RequirementMatcherFactoryTest.java
index c102b11f81..6c167b13ad 100644
--- a/maven-core/src/test/java/org/apache/maven/toolchain/RequirementMatcherFactoryTest.java
+++ b/maven-core/src/test/java/org/apache/maven/toolchain/RequirementMatcherFactoryTest.java
@@ -19,24 +19,23 @@
 
 package org.apache.maven.toolchain;
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  *
  * @author mkleint
  */
 public class RequirementMatcherFactoryTest
-    extends TestCase
 {
 
-    public RequirementMatcherFactoryTest( String testName )
-    {
-        super( testName );
-    }
-
     /**
      * Test of createExactMatcher method, of class RequirementMatcherFactory.
      */
+    @Test
     public void testCreateExactMatcher()
     {
         RequirementMatcher matcher;
@@ -50,6 +49,7 @@ public class RequirementMatcherFactoryTest
     /**
      * Test of createVersionMatcher method, of class RequirementMatcherFactory.
      */
+    @Test
     public void testCreateVersionMatcher()
     {
         RequirementMatcher matcher;
diff --git a/maven-core/src/test/java/org/apache/maven/toolchain/building/DefaultToolchainsBuilderTest.java b/maven-core/src/test/java/org/apache/maven/toolchain/building/DefaultToolchainsBuilderTest.java
index f04d24876b..94c15b80eb 100644
--- a/maven-core/src/test/java/org/apache/maven/toolchain/building/DefaultToolchainsBuilderTest.java
+++ b/maven-core/src/test/java/org/apache/maven/toolchain/building/DefaultToolchainsBuilderTest.java
@@ -27,8 +27,8 @@ import org.apache.maven.toolchain.model.PersistedToolchains;
 import org.apache.maven.toolchain.model.ToolchainModel;
 import org.codehaus.plexus.interpolation.os.OperatingSystemUtils;
 import org.codehaus.plexus.util.xml.Xpp3Dom;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.BeforeEach;
 import org.mockito.ArgumentMatchers;
 import org.mockito.InjectMocks;
 import org.mockito.MockitoAnnotations;
@@ -39,8 +39,8 @@ import java.io.InputStream;
 import java.util.HashMap;
 import java.util.Map;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.doThrow;
@@ -58,7 +58,7 @@ public class DefaultToolchainsBuilderTest
     @InjectMocks
     private DefaultToolchainsBuilder toolchainBuilder;
 
-    @Before
+    @BeforeEach
     public void onSetup()
     {
         MockitoAnnotations.initMocks( this );
diff --git a/maven-core/src/test/java/org/apache/maven/toolchain/building/ToolchainsBuildingExceptionTest.java b/maven-core/src/test/java/org/apache/maven/toolchain/building/ToolchainsBuildingExceptionTest.java
index 0efda4d365..8189268b4d 100644
--- a/maven-core/src/test/java/org/apache/maven/toolchain/building/ToolchainsBuildingExceptionTest.java
+++ b/maven-core/src/test/java/org/apache/maven/toolchain/building/ToolchainsBuildingExceptionTest.java
@@ -19,14 +19,14 @@ package org.apache.maven.toolchain.building;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Collections;
 
 import org.apache.maven.building.Problem;
 import org.apache.maven.building.ProblemCollector;
 import org.apache.maven.building.ProblemCollectorFactory;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class ToolchainsBuildingExceptionTest
 {
diff --git a/maven-core/src/test/java/org/apache/maven/toolchain/merge/MavenToolchainMergerTest.java b/maven-core/src/test/java/org/apache/maven/toolchain/merge/MavenToolchainMergerTest.java
index 5ad762a4e6..7bed9a909a 100644
--- a/maven-core/src/test/java/org/apache/maven/toolchain/merge/MavenToolchainMergerTest.java
+++ b/maven-core/src/test/java/org/apache/maven/toolchain/merge/MavenToolchainMergerTest.java
@@ -24,11 +24,11 @@ import org.apache.maven.toolchain.model.ToolchainModel;
 import org.apache.maven.toolchain.model.TrackableBase;
 import org.apache.maven.toolchain.model.io.xpp3.MavenToolchainsXpp3Reader;
 import org.codehaus.plexus.util.xml.Xpp3Dom;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.io.InputStream;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class MavenToolchainMergerTest
 {
diff --git a/maven-embedder/src/test/java/org/apache/maven/cli/CLIManagerDocumentationTest.java b/maven-embedder/src/test/java/org/apache/maven/cli/CLIManagerDocumentationTest.java
index 2c82a72e23..bc945fd3d9 100644
--- a/maven-embedder/src/test/java/org/apache/maven/cli/CLIManagerDocumentationTest.java
+++ b/maven-embedder/src/test/java/org/apache/maven/cli/CLIManagerDocumentationTest.java
@@ -29,15 +29,13 @@ import java.util.List;
 
 import org.apache.commons.cli.Option;
 import org.codehaus.plexus.util.FileUtils;
-
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
 
 /**
  * Pseudo test to generate documentation fragment about supported CLI options. TODO such documentation generation code
  * should not be necessary as unit test but should be run during site generation (Velocity? Doxia macro?)
  */
 public class CLIManagerDocumentationTest
-    extends TestCase
 {
     private final static String LS = System.lineSeparator();
 
@@ -98,6 +96,7 @@ public class CLIManagerDocumentationTest
         return sb.toString();
     }
 
+    @Test
     public void testOptionsAsHtml()
         throws IOException
     {
diff --git a/maven-embedder/src/test/java/org/apache/maven/cli/CLIManagerTest.java b/maven-embedder/src/test/java/org/apache/maven/cli/CLIManagerTest.java
index dbb38798e1..a3aad6bbb5 100644
--- a/maven-embedder/src/test/java/org/apache/maven/cli/CLIManagerTest.java
+++ b/maven-embedder/src/test/java/org/apache/maven/cli/CLIManagerTest.java
@@ -20,18 +20,18 @@ package org.apache.maven.cli;
  */
 
 import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.apache.commons.cli.CommandLine;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 public class CLIManagerTest
 {
     private CLIManager cliManager;
 
-    @Before
+    @BeforeEach
     public void setup()
     {
         cliManager = new CLIManager();
diff --git a/maven-embedder/src/test/java/org/apache/maven/cli/CLIReportingUtilsTest.java b/maven-embedder/src/test/java/org/apache/maven/cli/CLIReportingUtilsTest.java
index 65488c7c1e..ac0cb30943 100644
--- a/maven-embedder/src/test/java/org/apache/maven/cli/CLIReportingUtilsTest.java
+++ b/maven-embedder/src/test/java/org/apache/maven/cli/CLIReportingUtilsTest.java
@@ -19,12 +19,14 @@ package org.apache.maven.cli;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class CLIReportingUtilsTest
-    extends TestCase
 {
 
+    @Test
     public void testFormatDuration()
     {
         assertEquals( "0.001 s", CLIReportingUtils.formatDuration( 1 ) );
diff --git a/maven-embedder/src/test/java/org/apache/maven/cli/CleanArgumentTest.java b/maven-embedder/src/test/java/org/apache/maven/cli/CleanArgumentTest.java
index 7e2b489fe9..1624be1a28 100644
--- a/maven-embedder/src/test/java/org/apache/maven/cli/CleanArgumentTest.java
+++ b/maven-embedder/src/test/java/org/apache/maven/cli/CleanArgumentTest.java
@@ -19,9 +19,9 @@ package org.apache.maven.cli;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author Karl Heinz Marbaise
diff --git a/maven-embedder/src/test/java/org/apache/maven/cli/MavenCliTest.java b/maven-embedder/src/test/java/org/apache/maven/cli/MavenCliTest.java
index 491fb0b9ce..c7a41a5e2a 100644
--- a/maven-embedder/src/test/java/org/apache/maven/cli/MavenCliTest.java
+++ b/maven-embedder/src/test/java/org/apache/maven/cli/MavenCliTest.java
@@ -26,11 +26,11 @@ import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.CoreMatchers.nullValue;
 import static org.hamcrest.CoreMatchers.notNullValue;
 import static org.hamcrest.MatcherAssert.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-import static org.junit.Assume.assumeTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assumptions.assumeTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.hamcrest.collection.IsIterableContainingInOrder.contains;
 import static org.mockito.Mockito.inOrder;
@@ -55,30 +55,25 @@ import org.apache.maven.toolchain.building.ToolchainsBuildingRequest;
 import org.apache.maven.toolchain.building.ToolchainsBuildingResult;
 import org.codehaus.plexus.DefaultPlexusContainer;
 import org.codehaus.plexus.PlexusContainer;
-import org.eclipse.sisu.plexus.PlexusBeanModule;
-import org.junit.After;
-import org.junit.Assert;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.mockito.InOrder;
 
-import com.google.inject.Binder;
-import com.google.inject.Module;
-
 public class MavenCliTest
 {
     private MavenCli cli;
 
     private String origBasedir;
 
-    @Before
+    @BeforeEach
     public void setUp()
     {
         cli = new MavenCli();
         origBasedir = System.getProperty( MavenCli.MULTIMODULE_PROJECT_DIRECTORY );
     }
 
-    @After
+    @AfterEach
     public void tearDown()
         throws Exception
     {
@@ -149,15 +144,10 @@ public class MavenCliTest
         // -TC2.2
         assertEquals( (int) ( cores * 2.2 ), cli.calculateDegreeOfConcurrencyWithCoreMultiplier( "2.2C" ) );
 
-        try
-        {
-            cli.calculateDegreeOfConcurrencyWithCoreMultiplier( "CXXX" );
-            fail( "Should have failed with a NumberFormatException" );
-        }
-        catch ( NumberFormatException e )
-        {
-            // carry on
-        }
+        assertThrows(
+                NumberFormatException.class,
+                () -> cli.calculateDegreeOfConcurrencyWithCoreMultiplier( "CXXX" ),
+                "Should have failed with a NumberFormatException" );
     }
 
     @Test
@@ -189,15 +179,7 @@ public class MavenCliTest
         CliRequest request = new CliRequest( new String[0], null );
 
         cli.initialize( request );
-        try
-        {
-            cli.cli( request );
-            fail();
-        }
-        catch ( ParseException expected )
-        {
-
-        }
+        assertThrows( ParseException.class, () -> cli.cli( request ) );
     }
 
     /**
@@ -321,7 +303,7 @@ public class MavenCliTest
     public void testStyleColors()
         throws Exception
     {
-        assumeTrue( "ANSI not supported", MessageUtils.isColorEnabled() );
+        assumeTrue( MessageUtils.isColorEnabled(), "ANSI not supported" );
         CliRequest request;
 
         MessageUtils.setColorEnabled( true );
@@ -359,19 +341,14 @@ public class MavenCliTest
         cli.logging( request );
         assertTrue( MessageUtils.isColorEnabled() );
 
-        try
-        {
-            MessageUtils.setColorEnabled( false );
-            request = new CliRequest( new String[] { "-Dstyle.color=maybe", "-B", "-l", "target/temp/mvn.log" }, null );
-            cli.cli( request );
-            cli.properties( request );
-            cli.logging( request );
-            fail( "maybe is not a valid option" );
-        }
-        catch ( IllegalArgumentException e )
-        {
-            // noop
-        }
+        MessageUtils.setColorEnabled( false );
+        CliRequest maybeColorRequest = new CliRequest( new String[] { "-Dstyle.color=maybe", "-B", "-l", "target/temp/mvn.log" }, null );
+        cli.cli( maybeColorRequest );
+        cli.properties( maybeColorRequest );
+        assertThrows(
+                IllegalArgumentException.class,
+                () -> cli.logging( maybeColorRequest ),
+                "maybe is not a valid option" );
     }
 
     /**
diff --git a/maven-embedder/src/test/java/org/apache/maven/cli/event/ExecutionEventLoggerTest.java b/maven-embedder/src/test/java/org/apache/maven/cli/event/ExecutionEventLoggerTest.java
index 3abb872f60..d374b249de 100644
--- a/maven-embedder/src/test/java/org/apache/maven/cli/event/ExecutionEventLoggerTest.java
+++ b/maven-embedder/src/test/java/org/apache/maven/cli/event/ExecutionEventLoggerTest.java
@@ -26,9 +26,9 @@ import static org.mockito.Mockito.when;
 import org.apache.maven.execution.ExecutionEvent;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.shared.utils.logging.MessageUtils;
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
 import org.mockito.InOrder;
 import org.slf4j.Logger;
 
@@ -36,13 +36,13 @@ public class ExecutionEventLoggerTest
 {
     private ExecutionEventLogger executionEventLogger;
 
-    @BeforeClass
+    @BeforeAll
     public static void setUp()
     {
         MessageUtils.setColorEnabled( false );
     }
 
-    @AfterClass
+    @AfterAll
     public static void tearDown()
     {
         MessageUtils.setColorEnabled( true );
diff --git a/maven-embedder/src/test/java/org/apache/maven/cli/transfer/FileSizeFormatTest.java b/maven-embedder/src/test/java/org/apache/maven/cli/transfer/FileSizeFormatTest.java
index e595aceb91..5090facdd9 100644
--- a/maven-embedder/src/test/java/org/apache/maven/cli/transfer/FileSizeFormatTest.java
+++ b/maven-embedder/src/test/java/org/apache/maven/cli/transfer/FileSizeFormatTest.java
@@ -23,19 +23,20 @@ import java.util.Locale;
 
 import org.apache.maven.cli.transfer.AbstractMavenTransferListener.FileSizeFormat;
 import org.apache.maven.cli.transfer.AbstractMavenTransferListener.FileSizeFormat.ScaleUnit;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class FileSizeFormatTest {
 
-    @Test( expected = IllegalArgumentException.class )
+    @Test
     public void testNegativeSize()
     {
         FileSizeFormat format = new FileSizeFormat( Locale.ENGLISH );
 
         long negativeSize = -100L;
-        format.format( negativeSize );
+        assertThrows( IllegalArgumentException.class, () -> format.format( negativeSize ) );
     }
 
     @Test
@@ -209,21 +210,21 @@ public class FileSizeFormatTest {
         assertEquals( "1.0 GB", format.format( _1000_megabytes, ScaleUnit.GIGABYTE ) );
     }
 
-    @Test( expected = IllegalArgumentException.class )
+    @Test
     public void testNegativeProgressedSize()
     {
         FileSizeFormat format = new FileSizeFormat( Locale.ENGLISH );
 
         long negativeProgressedSize = -100L;
-        format.formatProgress( negativeProgressedSize, 10L );
+        assertThrows( IllegalArgumentException.class, () -> format.formatProgress( negativeProgressedSize, 10L ) );
     }
 
-    @Test( expected = IllegalArgumentException.class )
+    @Test
     public void testNegativeProgressedSizeBiggerThanSize()
     {
         FileSizeFormat format = new FileSizeFormat( Locale.ENGLISH );
 
-        format.formatProgress( 100L, 10L );
+        assertThrows( IllegalArgumentException.class, () -> format.formatProgress( 100L, 10L ) );
     }
 
     @Test
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/building/ComplexActivationTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/building/ComplexActivationTest.java
index 9ef31b3db3..1401652d34 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/building/ComplexActivationTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/building/ComplexActivationTest.java
@@ -19,16 +19,19 @@ package org.apache.maven.model.building;
  * under the License.
  */
 
-import junit.framework.TestCase;
-
 import java.io.File;
 import java.util.Properties;
 
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
 /**
  * @author Konstantin Perikov
  */
 public class ComplexActivationTest
-        extends TestCase
 {
 
     private File getPom( String name )
@@ -36,6 +39,7 @@ public class ComplexActivationTest
         return new File( "src/test/resources/poms/factory/" + name + ".xml" ).getAbsoluteFile();
     }
 
+    @Test
     public void testAndConditionInActivation()
             throws Exception
     {
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/building/DefaultModelBuilderFactoryTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/building/DefaultModelBuilderFactoryTest.java
index 90b65a4c92..5f12d6b626 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/building/DefaultModelBuilderFactoryTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/building/DefaultModelBuilderFactoryTest.java
@@ -22,14 +22,15 @@ package org.apache.maven.model.building;
 import java.io.File;
 
 import org.codehaus.plexus.util.xml.Xpp3Dom;
+import org.junit.jupiter.api.Test;
 
-import junit.framework.TestCase;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  * @author Benjamin Bentmann
  */
 public class DefaultModelBuilderFactoryTest
-    extends TestCase
 {
 
     private File getPom( String name )
@@ -37,6 +38,7 @@ public class DefaultModelBuilderFactoryTest
         return new File( "src/test/resources/poms/factory/" + name + ".xml" ).getAbsoluteFile();
     }
 
+    @Test
     public void testCompleteWiring()
         throws Exception
     {
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/building/DefaultModelBuilderTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/building/DefaultModelBuilderTest.java
index 2b6d53a49b..d61e2aa685 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/building/DefaultModelBuilderTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/building/DefaultModelBuilderTest.java
@@ -25,10 +25,10 @@ import org.apache.maven.model.Repository;
 import org.apache.maven.model.resolution.InvalidRepositoryException;
 import org.apache.maven.model.resolution.ModelResolver;
 import org.apache.maven.model.resolution.UnresolvableModelException;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 /**
  * @author Guillaume Nodet
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/building/FileModelSourceTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/building/FileModelSourceTest.java
index 996adf83d8..d4a489c5dd 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/building/FileModelSourceTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/building/FileModelSourceTest.java
@@ -18,13 +18,17 @@ package org.apache.maven.model.building;
  * specific language governing permissions and limitations
  * under the License.
  */
+
 import java.io.File;
 import java.io.IOException;
-import static junit.framework.TestCase.assertFalse;
-import static junit.framework.TestCase.assertTrue;
+
 import org.apache.commons.lang3.SystemUtils;
-import static org.junit.Assume.assumeTrue;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assumptions.assumeTrue;
+
 
 /**
  * Test that validate the solution of MNG-6261 issue
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/building/FileToRawModelMergerTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/building/FileToRawModelMergerTest.java
index 9dd3f555b9..9d5301411c 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/building/FileToRawModelMergerTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/building/FileToRawModelMergerTest.java
@@ -19,9 +19,6 @@ package org.apache.maven.model.building;
  * under the License.
  */
 
-import static org.hamcrest.Matchers.hasItems;
-import static org.junit.Assert.assertThat;
-
 import java.lang.reflect.Method;
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
@@ -31,7 +28,10 @@ import java.util.stream.Stream;
 
 import org.apache.maven.model.building.DefaultModelBuilder.FileToRawModelMerger;
 import org.apache.maven.model.merge.ModelMerger;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.hasItems;
 
 public class FileToRawModelMergerTest
 {
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/building/SimpleProblemCollector.java b/maven-model-builder/src/test/java/org/apache/maven/model/building/SimpleProblemCollector.java
index 64e9b3807c..b311d771fd 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/building/SimpleProblemCollector.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/building/SimpleProblemCollector.java
@@ -24,7 +24,6 @@ import java.util.List;
 
 import org.apache.maven.model.Model;
 
-
 /**
  * A simple model problem collector for testing the model building components.
  *
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/inheritance/DefaultInheritanceAssemblerTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/inheritance/DefaultInheritanceAssemblerTest.java
index 2b1eed8127..b36c18475d 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/inheritance/DefaultInheritanceAssemblerTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/inheritance/DefaultInheritanceAssemblerTest.java
@@ -19,20 +19,6 @@ package org.apache.maven.model.inheritance;
  * under the License.
  */
 
-import org.apache.maven.model.Model;
-import org.apache.maven.model.building.AbstractModelSourceTransformer;
-import org.apache.maven.model.building.SimpleProblemCollector;
-import org.apache.maven.model.building.TransformerContext;
-import org.apache.maven.model.io.DefaultModelReader;
-import org.apache.maven.model.io.DefaultModelWriter;
-import org.apache.maven.model.io.ModelWriter;
-import org.apache.maven.xml.sax.filter.AbstractSAXFilter;
-import org.xml.sax.SAXException;
-import org.xml.sax.ext.LexicalHandler;
-import org.xmlunit.matchers.CompareMatcher;
-
-import junit.framework.TestCase;
-
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Path;
@@ -41,13 +27,29 @@ import java.util.function.Consumer;
 import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.transform.TransformerConfigurationException;
 
+import org.xml.sax.SAXException;
+import org.xml.sax.ext.LexicalHandler;
+
+import org.apache.maven.model.Model;
+import org.apache.maven.model.building.AbstractModelSourceTransformer;
+import org.apache.maven.model.building.SimpleProblemCollector;
+import org.apache.maven.model.building.TransformerContext;
+import org.apache.maven.model.io.DefaultModelReader;
+import org.apache.maven.model.io.DefaultModelWriter;
+import org.apache.maven.model.io.ModelWriter;
+import org.apache.maven.xml.sax.filter.AbstractSAXFilter;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.xmlunit.matchers.CompareMatcher;
+
 import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * @author Hervé Boutemy
  */
 public class DefaultInheritanceAssemblerTest
-    extends TestCase
 {
     private DefaultModelReader reader;
 
@@ -55,12 +57,10 @@ public class DefaultInheritanceAssemblerTest
 
     private InheritanceAssembler assembler;
 
-    @Override
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
-        super.setUp();
-
         reader = new DefaultModelReader();
         reader.setTransformer( new AbstractModelSourceTransformer()
         {
@@ -87,6 +87,7 @@ public class DefaultInheritanceAssemblerTest
         return reader.read( getPom( name ), null );
     }
 
+    @Test
     public void testPluginConfiguration()
         throws Exception
     {
@@ -98,6 +99,7 @@ public class DefaultInheritanceAssemblerTest
      * and child directory == artifactId
      * @throws IOException Model read problem
      */
+    @Test
     public void testUrls()
         throws Exception
     {
@@ -108,6 +110,7 @@ public class DefaultInheritanceAssemblerTest
      * Flat directory structure: parent &amp; child POMs in sibling directories, child directory == artifactId.
      * @throws IOException Model read problem
      */
+    @Test
     public void testFlatUrls()
         throws IOException
     {
@@ -118,6 +121,7 @@ public class DefaultInheritanceAssemblerTest
      * MNG-5951 MNG-6059 child.x.y.inherit.append.path="false" test
      * @throws Exception
      */
+    @Test
     public void testNoAppendUrls()
         throws Exception
     {
@@ -128,6 +132,7 @@ public class DefaultInheritanceAssemblerTest
      * MNG-5951 special case test: inherit with partial override
      * @throws Exception
      */
+    @Test
     public void testNoAppendUrls2()
         throws Exception
     {
@@ -138,6 +143,7 @@ public class DefaultInheritanceAssemblerTest
      * MNG-5951 special case test: child.x.y.inherit.append.path="true" in child should not reset content
      * @throws Exception
      */
+    @Test
     public void testNoAppendUrls3()
         throws Exception
     {
@@ -150,6 +156,7 @@ public class DefaultInheritanceAssemblerTest
      * This is why MNG-5000 fix in code is marked as bad practice (uses file names)
      * @throws IOException Model read problem
      */
+    @Test
     public void testFlatTrickyUrls()
         throws IOException
     {
@@ -164,10 +171,10 @@ public class DefaultInheritanceAssemblerTest
         catch ( AssertionError afe )
         {
             // expected failure: wrong relative path calculation
-            assertTrue( afe.getMessage(),
-                        afe.getMessage().contains(
+            assertTrue( afe.getMessage().contains(
                                 "Expected text value 'http://www.apache.org/path/to/parent/child-artifact-id/' but was " +
-                                        "'http://www.apache.org/path/to/parent/../child-artifact-id/'" ) );
+                                        "'http://www.apache.org/path/to/parent/../child-artifact-id/'" ),
+                        afe.getMessage() );
         }
         // but ok from repo: local disk is ignored
         testInheritance( "tricky-flat-artifactId-urls", true );
@@ -175,20 +182,19 @@ public class DefaultInheritanceAssemblerTest
         // parent references child with directory name (which is not artifact id)
         // then relative path calculation will success during build from disk but fail when calculated from repo
         testInheritance( "tricky-flat-directory-urls", false );
-        try
-        {
-            testInheritance( "tricky-flat-directory-urls", true );
-            fail( "should have failed since module reference == directory name != artifactId" );
-        }
-        catch ( AssertionError afe )
-        {
-            // expected failure
-            assertTrue( afe.getMessage(), afe.getMessage().contains(
-                    "Expected text value 'http://www.apache.org/path/to/parent/../child-artifact-id/' but was " +
-                            "'http://www.apache.org/path/to/parent/child-artifact-id/'" ) );
-        }
+
+        AssertionError afe = assertThrows(
+                AssertionError.class,
+                () -> testInheritance( "tricky-flat-directory-urls", true ),
+                "should have failed since module reference == directory name != artifactId" );
+        // expected failure
+        assertTrue( afe.getMessage().contains(
+                                "Expected text value 'http://www.apache.org/path/to/parent/../child-artifact-id/' but was " +
+                                        "'http://www.apache.org/path/to/parent/child-artifact-id/'" ),
+                    afe.getMessage() );
     }
 
+    @Test
     public void testWithEmptyUrl()
         throws IOException
     {
@@ -232,6 +238,7 @@ public class DefaultInheritanceAssemblerTest
         assertThat( actual, CompareMatcher.isIdenticalTo( expected ).ignoreComments().ignoreWhitespace() );
     }
 
+    @Test
     public void testModulePathNotArtifactId()
         throws IOException
     {
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/AbstractModelInterpolatorTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/AbstractModelInterpolatorTest.java
index 01cac27310..032ef2827b 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/AbstractModelInterpolatorTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/AbstractModelInterpolatorTest.java
@@ -19,6 +19,15 @@ package org.apache.maven.model.interpolation;
  * under the License.
  */
 
+import java.io.File;
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Properties;
+import java.util.TimeZone;
+
 import org.apache.maven.model.Build;
 import org.apache.maven.model.Dependency;
 import org.apache.maven.model.Model;
@@ -29,30 +38,21 @@ import org.apache.maven.model.Scm;
 import org.apache.maven.model.building.DefaultModelBuildingRequest;
 import org.apache.maven.model.building.ModelBuildingRequest;
 import org.apache.maven.model.building.SimpleProblemCollector;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-import org.junit.Before;
-import org.junit.Test;
-
-import java.io.File;
-import java.text.SimpleDateFormat;
-import java.util.Calendar;
-import java.util.Date;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Properties;
-import java.util.TimeZone;
-
-import static org.junit.Assert.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * @author jdcasey
  */
 public abstract class AbstractModelInterpolatorTest
 {
-    protected ModelInterpolator interpolator;
     private Properties context;
 
-    @Before
+    @BeforeEach
     public void setUp()
     {
         context = new Properties();
@@ -63,16 +63,16 @@ public abstract class AbstractModelInterpolatorTest
 
     protected void assertProblemFree( SimpleProblemCollector collector )
     {
-        assertEquals( "Expected no errors", 0, collector.getErrors().size() );
-        assertEquals( "Expected no warnings", 0, collector.getWarnings().size() );
-        assertEquals( "Expected no fatals", 0, collector.getFatals().size() );
+        assertEquals( 0, collector.getErrors().size(), "Expected no errors" );
+        assertEquals( 0, collector.getWarnings().size(), "Expected no warnings" );
+        assertEquals( 0, collector.getFatals().size(), "Expected no fatals" );
     }
 
     protected void assertCollectorState( int numFatals, int numErrors, int numWarnings, SimpleProblemCollector collector )
     {
-        assertEquals( "Errors", numErrors, collector.getErrors().size() );
-        assertEquals( "Warnings", numWarnings, collector.getWarnings().size() );
-        assertEquals( "Fatals", numFatals, collector.getFatals().size() );
+        assertEquals( numErrors, collector.getErrors().size(), "Errors" );
+        assertEquals( numWarnings, collector.getWarnings().size(), "Warnings" );
+        assertEquals( numFatals, collector.getFatals().size(), "Fatals" );
     }
 
     private ModelBuildingRequest createModelBuildingRequest( Properties p )
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/MavenBuildTimestampTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/MavenBuildTimestampTest.java
index 8af32fc5b3..73ea3996ba 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/MavenBuildTimestampTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/MavenBuildTimestampTest.java
@@ -22,17 +22,19 @@ package org.apache.maven.model.interpolation;
 import java.util.Date;
 import java.util.Properties;
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class MavenBuildTimestampTest
-    extends TestCase
 {
+    @Test
     public void testMavenBuildTimestampUsesUTC()
     {
         Properties interpolationProperties = new Properties();
         interpolationProperties.setProperty( "maven.build.timestamp.format", "yyyyMMdd'T'HHmm'Z'" );
         MavenBuildTimestamp timestamp = new MavenBuildTimestamp( new Date(), interpolationProperties );
         String formattedTimestamp = timestamp.formattedTimestamp();
-        assertTrue( "We expect the UTC marker at the end of the timestamp.", formattedTimestamp.endsWith( "Z" ) );
+        assertTrue( formattedTimestamp.endsWith( "Z" ), "We expect the UTC marker at the end of the timestamp." );
     }
 }
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringSearchModelInterpolatorTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringSearchModelInterpolatorTest.java
index dbb72c4f73..d0d71fda9b 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringSearchModelInterpolatorTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringSearchModelInterpolatorTest.java
@@ -19,27 +19,33 @@ package org.apache.maven.model.interpolation;
  * under the License.
  */
 
+import java.io.File;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.concurrent.Callable;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.Future;
+import java.util.concurrent.FutureTask;
+
 import org.apache.maven.model.InputLocation;
 import org.apache.maven.model.InputSource;
 import org.apache.maven.model.Model;
 import org.apache.maven.model.building.DefaultModelBuildingRequest;
 import org.apache.maven.model.building.ModelBuildingRequest;
 import org.apache.maven.model.building.SimpleProblemCollector;
-import org.junit.Test;
-
-import java.io.File;
-import java.lang.reflect.Field;
-import java.util.*;
-import java.util.concurrent.Callable;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.Future;
-import java.util.concurrent.FutureTask;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 import static org.hamcrest.CoreMatchers.anyOf;
 import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.MatcherAssert.assertThat;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  * StringSearchModelInterpolatorTest - not in use
@@ -51,16 +57,9 @@ import static org.junit.Assert.assertNotNull;
 public class StringSearchModelInterpolatorTest
     extends AbstractModelInterpolatorTest
 {
-    @Override
-    public void setUp()
-    {
-        super.setUp();
-        interpolator = new StringSearchModelInterpolator();
-    }
-
     protected ModelInterpolator createInterpolator()
     {
-        return this.interpolator;
+        return new StringSearchModelInterpolator();
     }
 
     @Test
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringVisitorModelInterpolatorTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringVisitorModelInterpolatorTest.java
index bd201ed780..7c90b07a1b 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringVisitorModelInterpolatorTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/interpolation/StringVisitorModelInterpolatorTest.java
@@ -21,15 +21,8 @@ package org.apache.maven.model.interpolation;
 
 public class StringVisitorModelInterpolatorTest extends AbstractModelInterpolatorTest
 {
-    @Override
-    public void setUp()
-    {
-        super.setUp();
-        interpolator = new StringVisitorModelInterpolator();
-    }
-
     protected ModelInterpolator createInterpolator()
     {
-        return this.interpolator;
+        return new StringVisitorModelInterpolator();
     }
 }
\ No newline at end of file
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/merge/MavenModelMergerTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/merge/MavenModelMergerTest.java
index c23be0fdf5..636f3fb571 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/merge/MavenModelMergerTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/merge/MavenModelMergerTest.java
@@ -20,15 +20,15 @@ package org.apache.maven.model.merge;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
-
 import java.util.Collections;
 
 import org.apache.maven.model.Model;
 import org.apache.maven.model.Prerequisites;
 import org.apache.maven.model.Profile;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 public class MavenModelMergerTest
 {
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/path/DefaultUrlNormalizerTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/path/DefaultUrlNormalizerTest.java
index 095ff62942..010abe01bf 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/path/DefaultUrlNormalizerTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/path/DefaultUrlNormalizerTest.java
@@ -19,10 +19,10 @@ package org.apache.maven.model.path;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
+import org.junit.jupiter.api.Test;
 
-import org.junit.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 /**
  * @author Benjamin Bentmann
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/AbstractProfileActivatorTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/AbstractProfileActivatorTest.java
index 5198d04b5f..c665125e9f 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/AbstractProfileActivatorTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/AbstractProfileActivatorTest.java
@@ -1,7 +1,5 @@
 package org.apache.maven.model.profile.activation;
 
-import java.util.Objects;
-
 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
@@ -21,14 +19,17 @@ import java.util.Objects;
  * under the License.
  */
 
+import java.util.Objects;
 import java.util.Properties;
 
 import org.apache.maven.model.Profile;
 import org.apache.maven.model.building.SimpleProblemCollector;
 import org.apache.maven.model.profile.DefaultProfileActivationContext;
 import org.apache.maven.model.profile.ProfileActivationContext;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 
-import junit.framework.TestCase;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * Provides common services to test {@link ProfileActivator} implementations.
@@ -36,7 +37,6 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public abstract class AbstractProfileActivatorTest<T extends ProfileActivator>
-    extends TestCase
 {
 
     private Class<T> activatorClass;
@@ -48,22 +48,18 @@ public abstract class AbstractProfileActivatorTest<T extends ProfileActivator>
         this.activatorClass = Objects.requireNonNull( activatorClass, "activatorClass cannot be null" );;
     }
 
-    @Override
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
-        super.setUp();
-
         activator = activatorClass.getConstructor().newInstance();
     }
 
-    @Override
-    protected void tearDown()
+    @AfterEach
+    public void tearDown()
         throws Exception
     {
         activator = null;
-
-        super.tearDown();
     }
 
     protected ProfileActivationContext newContext( final Properties userProperties, final Properties systemProperties )
@@ -78,8 +74,8 @@ public abstract class AbstractProfileActivatorTest<T extends ProfileActivator>
 
         assertEquals( active, activator.isActive( profile, context, problems ) );
 
-        assertEquals( problems.getErrors().toString(), 0, problems.getErrors().size() );
-        assertEquals( problems.getWarnings().toString(), 0, problems.getWarnings().size() );
+        assertEquals( 0, problems.getErrors().size(), problems.getErrors().toString() );
+        assertEquals( 0, problems.getWarnings().size(), problems.getWarnings().toString() );
     }
 
 }
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/JdkVersionProfileActivatorTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/JdkVersionProfileActivatorTest.java
index 440f120bbb..51bd93f27a 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/JdkVersionProfileActivatorTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/JdkVersionProfileActivatorTest.java
@@ -23,6 +23,7 @@ import java.util.Properties;
 
 import org.apache.maven.model.Activation;
 import org.apache.maven.model.Profile;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests {@link JdkVersionProfileActivator}.
@@ -56,6 +57,7 @@ public class JdkVersionProfileActivatorTest
         return props;
     }
 
+    @Test
     public void testNullSafe()
         throws Exception
     {
@@ -68,6 +70,7 @@ public class JdkVersionProfileActivatorTest
         assertActivation( false, p, newContext( null, null ) );
     }
 
+    @Test
     public void testPrefix()
         throws Exception
     {
@@ -83,6 +86,7 @@ public class JdkVersionProfileActivatorTest
         assertActivation( false, profile, newContext( null, newProperties( "1.5" ) ) );
     }
 
+    @Test
     public void testPrefixNegated()
         throws Exception
     {
@@ -98,6 +102,7 @@ public class JdkVersionProfileActivatorTest
         assertActivation( true, profile, newContext( null, newProperties( "1.5" ) ) );
     }
 
+    @Test
     public void testVersionRangeInclusiveBounds()
         throws Exception
     {
@@ -120,6 +125,7 @@ public class JdkVersionProfileActivatorTest
         assertActivation( true, profile, newContext( null, newProperties( "1.6.0_09-b03" ) ) );
     }
 
+    @Test
     public void testVersionRangeExclusiveBounds()
         throws Exception
     {
@@ -143,6 +149,7 @@ public class JdkVersionProfileActivatorTest
         assertActivation( false, profile, newContext( null, newProperties( "1.6" ) ) );
     }
 
+    @Test
     public void testVersionRangeInclusiveLowerBound()
         throws Exception
     {
@@ -165,6 +172,7 @@ public class JdkVersionProfileActivatorTest
         assertActivation( true, profile, newContext( null, newProperties( "1.6.0_09-b03" ) ) );
     }
 
+    @Test
     public void testVersionRangeExclusiveUpperBound()
         throws Exception
     {
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/PropertyProfileActivatorTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/PropertyProfileActivatorTest.java
index 73ab967e53..251ea7d602 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/PropertyProfileActivatorTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/profile/activation/PropertyProfileActivatorTest.java
@@ -24,6 +24,7 @@ import java.util.Properties;
 import org.apache.maven.model.Activation;
 import org.apache.maven.model.ActivationProperty;
 import org.apache.maven.model.Profile;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests {@link PropertyProfileActivator}.
@@ -61,6 +62,7 @@ public class PropertyProfileActivatorTest
         return props;
     }
 
+    @Test
     public void testNullSafe()
         throws Exception
     {
@@ -73,6 +75,7 @@ public class PropertyProfileActivatorTest
         assertActivation( false, p, newContext( null, null ) );
     }
 
+    @Test
     public void testWithNameOnly_UserProperty()
         throws Exception
     {
@@ -85,6 +88,7 @@ public class PropertyProfileActivatorTest
         assertActivation( false, profile, newContext( newProperties( "other", "value" ), null ) );
     }
 
+    @Test
     public void testWithNameOnly_SystemProperty()
         throws Exception
     {
@@ -97,6 +101,7 @@ public class PropertyProfileActivatorTest
         assertActivation( false, profile, newContext( null, newProperties( "other", "value" ) ) );
     }
 
+    @Test
     public void testWithNegatedNameOnly_UserProperty()
         throws Exception
     {
@@ -109,6 +114,7 @@ public class PropertyProfileActivatorTest
         assertActivation( true, profile, newContext( newProperties( "other", "value" ), null ) );
     }
 
+    @Test
     public void testWithNegatedNameOnly_SystemProperty()
         throws Exception
     {
@@ -121,6 +127,7 @@ public class PropertyProfileActivatorTest
         assertActivation( true, profile, newContext( null, newProperties( "other", "value" ) ) );
     }
 
+    @Test
     public void testWithValue_UserProperty()
         throws Exception
     {
@@ -133,6 +140,7 @@ public class PropertyProfileActivatorTest
         assertActivation( false, profile, newContext( newProperties( "prop", "" ), null ) );
     }
 
+    @Test
     public void testWithValue_SystemProperty()
         throws Exception
     {
@@ -145,6 +153,7 @@ public class PropertyProfileActivatorTest
         assertActivation( false, profile, newContext( null, newProperties( "other", "" ) ) );
     }
 
+    @Test
     public void testWithNegatedValue_UserProperty()
         throws Exception
     {
@@ -157,6 +166,7 @@ public class PropertyProfileActivatorTest
         assertActivation( true, profile, newContext( newProperties( "prop", "" ), null ) );
     }
 
+    @Test
     public void testWithNegatedValue_SystemProperty()
         throws Exception
     {
@@ -169,6 +179,7 @@ public class PropertyProfileActivatorTest
         assertActivation( true, profile, newContext( null, newProperties( "other", "" ) ) );
     }
 
+    @Test
     public void testWithValue_UserPropertyDominantOverSystemProperty()
         throws Exception
     {
diff --git a/maven-model-builder/src/test/java/org/apache/maven/model/validation/DefaultModelValidatorTest.java b/maven-model-builder/src/test/java/org/apache/maven/model/validation/DefaultModelValidatorTest.java
index 7e94234f23..5f17a8aded 100644
--- a/maven-model-builder/src/test/java/org/apache/maven/model/validation/DefaultModelValidatorTest.java
+++ b/maven-model-builder/src/test/java/org/apache/maven/model/validation/DefaultModelValidatorTest.java
@@ -27,14 +27,18 @@ import org.apache.maven.model.building.DefaultModelBuildingRequest;
 import org.apache.maven.model.building.ModelBuildingRequest;
 import org.apache.maven.model.building.SimpleProblemCollector;
 import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
-import junit.framework.TestCase;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * @author <a href="mailto:trygvis@inamo.no">Trygve Laugst&oslash;l</a>
  */
 public class DefaultModelValidatorTest
-    extends TestCase
 {
 
     private ModelValidator validator;
@@ -44,7 +48,7 @@ public class DefaultModelValidatorTest
     {
         String resource = "/poms/validation/" + pom;
         InputStream is = getClass().getResourceAsStream( resource );
-        assertNotNull( "missing resource: " + resource, is );
+        assertNotNull( is, "missing resource: " + resource );
         return new MavenXpp3Reader().read( is );
     }
 
@@ -92,34 +96,31 @@ public class DefaultModelValidatorTest
 
     private void assertContains( String msg, String substring )
     {
-        assertTrue( "\"" + substring + "\" was not found in: " + msg, msg.contains( substring ) );
+        assertTrue( msg.contains( substring ), "\"" + substring + "\" was not found in: " + msg );
     }
 
-    @Override
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
-        super.setUp();
-
         validator = new DefaultModelValidator();
     }
 
-    @Override
-    protected void tearDown()
+    @AfterEach
+    public void tearDown()
         throws Exception
     {
         this.validator = null;
-
-        super.tearDown();
     }
 
     private void assertViolations( SimpleProblemCollector result, int fatals, int errors, int warnings )
     {
-        assertEquals( String.valueOf( result.getFatals() ), fatals, result.getFatals().size() );
-        assertEquals( String.valueOf( result.getErrors() ), errors, result.getErrors().size() );
-        assertEquals( String.valueOf( result.getWarnings() ), warnings, result.getWarnings().size() );
+        assertEquals( fatals, result.getFatals().size(), String.valueOf( result.getFatals() ) );
+        assertEquals( errors, result.getErrors().size(), String.valueOf( result.getErrors() ) );
+        assertEquals( warnings, result.getWarnings().size(), String.valueOf( result.getWarnings() ) );
     }
 
+    @Test
     public void testMissingModelVersion()
         throws Exception
     {
@@ -130,6 +131,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'modelVersion' is missing.", result.getErrors().get( 0 ) );
     }
 
+    @Test
     public void testBadModelVersion()
         throws Exception
     {
@@ -141,6 +143,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getFatals().get( 0 ).contains( "modelVersion" ) );
     }
 
+    @Test
     public void testMissingArtifactId()
         throws Exception
     {
@@ -151,6 +154,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'artifactId' is missing.", result.getErrors().get( 0 ) );
     }
 
+    @Test
     public void testMissingGroupId()
         throws Exception
     {
@@ -161,6 +165,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'groupId' is missing.", result.getErrors().get( 0 ) );
     }
 
+    @Test
     public void testInvalidIds()
         throws Exception
     {
@@ -174,6 +179,7 @@ public class DefaultModelValidatorTest
                       result.getErrors().get( 1 ) );
     }
 
+    @Test
     public void testMissingType()
         throws Exception
     {
@@ -184,6 +190,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'packaging' is missing.", result.getErrors().get( 0 ) );
     }
 
+    @Test
     public void testMissingVersion()
         throws Exception
     {
@@ -194,6 +201,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'version' is missing.", result.getErrors().get( 0 ) );
     }
 
+    @Test
     public void testInvalidAggregatorPackaging()
         throws Exception
     {
@@ -204,6 +212,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "Aggregator projects require 'pom' as packaging." ) );
     }
 
+    @Test
     public void testMissingDependencyArtifactId()
         throws Exception
     {
@@ -214,6 +223,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "'dependencies.dependency.artifactId' for groupId:null:jar is missing" ) );
     }
 
+    @Test
     public void testMissingDependencyGroupId()
         throws Exception
     {
@@ -224,6 +234,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "'dependencies.dependency.groupId' for null:artifactId:jar is missing" ) );
     }
 
+    @Test
     public void testMissingDependencyVersion()
         throws Exception
     {
@@ -234,6 +245,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "'dependencies.dependency.version' for groupId:artifactId:jar is missing" ) );
     }
 
+    @Test
     public void testMissingDependencyManagementArtifactId()
         throws Exception
     {
@@ -244,6 +256,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "'dependencyManagement.dependencies.dependency.artifactId' for groupId:null:jar is missing" ) );
     }
 
+    @Test
     public void testMissingDependencyManagementGroupId()
         throws Exception
     {
@@ -254,6 +267,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "'dependencyManagement.dependencies.dependency.groupId' for null:artifactId:jar is missing" ) );
     }
 
+    @Test
     public void testMissingAll()
         throws Exception
     {
@@ -270,6 +284,7 @@ public class DefaultModelValidatorTest
         // type is inherited from the super pom
     }
 
+    @Test
     public void testMissingPluginArtifactId()
         throws Exception
     {
@@ -280,6 +295,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'build.plugins.plugin.artifactId' is missing.", result.getErrors().get( 0 ) );
     }
 
+    @Test
     public void testEmptyPluginVersion()
         throws Exception
     {
@@ -291,6 +307,7 @@ public class DefaultModelValidatorTest
             + " must be a valid version but is ''.", result.getErrors().get( 0 ) );
     }
 
+    @Test
     public void testMissingRepositoryId()
         throws Exception
     {
@@ -308,6 +325,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'pluginRepositories.pluginRepository.[null].url' is missing.", result.getErrors().get( 3 ) );
     }
 
+    @Test
     public void testMissingResourceDirectory()
         throws Exception
     {
@@ -320,6 +338,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'build.testResources.testResource.directory' is missing.", result.getErrors().get( 1 ) );
     }
 
+    @Test
     public void testBadPluginDependencyScope()
         throws Exception
     {
@@ -334,6 +353,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 2 ).contains( "test:f" ) );
     }
 
+    @Test
     public void testBadDependencyScope()
         throws Exception
     {
@@ -346,6 +366,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getWarnings().get( 1 ).contains( "test:g" ) );
     }
 
+    @Test
     public void testBadDependencyManagementScope()
         throws Exception
     {
@@ -356,6 +377,7 @@ public class DefaultModelValidatorTest
         assertContains( result.getWarnings().get( 0 ), "test:g" );
     }
 
+    @Test
     public void testBadDependencyVersion()
         throws Exception
     {
@@ -369,6 +391,7 @@ public class DefaultModelValidatorTest
                         "'dependencies.dependency.version' for test:c:jar must not contain any of these characters" );
     }
 
+    @Test
     public void testDuplicateModule()
         throws Exception
     {
@@ -379,6 +402,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "child" ) );
     }
 
+    @Test
     public void testDuplicateProfileId()
         throws Exception
     {
@@ -389,6 +413,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "non-unique-id" ) );
     }
 
+    @Test
     public void testBadPluginVersion()
         throws Exception
     {
@@ -406,6 +431,7 @@ public class DefaultModelValidatorTest
                         "'build.plugins.plugin.version' for test:ifsc must not contain any of these characters" );
     }
 
+    @Test
     public void testDistributionManagementStatus()
         throws Exception
     {
@@ -416,6 +442,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "distributionManagement.status" ) );
     }
 
+    @Test
     public void testIncompleteParent()
         throws Exception
     {
@@ -427,6 +454,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getFatals().get( 2 ).contains( "parent.version" ) );
     }
 
+    @Test
     public void testHardCodedSystemPath()
         throws Exception
     {
@@ -451,6 +479,7 @@ public class DefaultModelValidatorTest
 
     }
 
+    @Test
     public void testEmptyModule()
         throws Exception
     {
@@ -461,6 +490,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "'modules.module[0]' has been specified without a path" ) );
     }
 
+    @Test
     public void testDuplicatePlugin()
         throws Exception
     {
@@ -474,6 +504,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getWarnings().get( 3 ).contains( "duplicate declaration of plugin profile:managed-duplicate" ) );
     }
 
+    @Test
     public void testDuplicatePluginExecution()
         throws Exception
     {
@@ -487,6 +518,7 @@ public class DefaultModelValidatorTest
         assertContains( result.getErrors().get( 3 ), "duplicate execution with id b" );
     }
 
+    @Test
     public void testReservedRepositoryId()
         throws Exception
     {
@@ -501,6 +533,7 @@ public class DefaultModelValidatorTest
                         "'distributionManagement.snapshotRepository.id' must not be 'local'" );
     }
 
+    @Test
     public void testMissingPluginDependencyGroupId()
         throws Exception
     {
@@ -511,6 +544,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( ":a:" ) );
     }
 
+    @Test
     public void testMissingPluginDependencyArtifactId()
         throws Exception
     {
@@ -521,6 +555,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "test:" ) );
     }
 
+    @Test
     public void testMissingPluginDependencyVersion()
         throws Exception
     {
@@ -531,6 +566,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "test:a" ) );
     }
 
+    @Test
     public void testBadPluginDependencyVersion()
         throws Exception
     {
@@ -541,6 +577,7 @@ public class DefaultModelValidatorTest
         assertTrue( result.getErrors().get( 0 ).contains( "test:b" ) );
     }
 
+    @Test
     public void testBadVersion()
         throws Exception
     {
@@ -551,6 +588,7 @@ public class DefaultModelValidatorTest
         assertContains( result.getWarnings().get( 0 ), "'version' must not contain any of these characters" );
     }
 
+    @Test
     public void testBadSnapshotVersion()
         throws Exception
     {
@@ -561,6 +599,7 @@ public class DefaultModelValidatorTest
         assertContains( result.getWarnings().get( 0 ), "'version' uses an unsupported snapshot version format" );
     }
 
+    @Test
     public void testBadRepositoryId()
         throws Exception
     {
@@ -578,6 +617,7 @@ public class DefaultModelValidatorTest
                         "'distributionManagement.snapshotRepository.id' must not contain any of these characters" );
     }
 
+    @Test
     public void testBadDependencyExclusionId()
         throws Exception
     {
@@ -599,6 +639,7 @@ public class DefaultModelValidatorTest
 
     }
 
+    @Test
     public void testMissingDependencyExclusionId()
         throws Exception
     {
@@ -612,6 +653,7 @@ public class DefaultModelValidatorTest
                         "'dependencies.dependency.exclusions.exclusion.artifactId' for gid:aid:jar is missing" );
     }
 
+    @Test
     public void testBadImportScopeType()
         throws Exception
     {
@@ -623,6 +665,7 @@ public class DefaultModelValidatorTest
                         "'dependencyManagement.dependencies.dependency.type' for test:a:jar must be 'pom'" );
     }
 
+    @Test
     public void testBadImportScopeClassifier()
         throws Exception
     {
@@ -634,6 +677,7 @@ public class DefaultModelValidatorTest
                         "'dependencyManagement.dependencies.dependency.classifier' for test:a:pom:cls must be empty" );
     }
 
+    @Test
     public void testSystemPathRefersToProjectBasedir()
         throws Exception
     {
@@ -661,6 +705,7 @@ public class DefaultModelValidatorTest
                         "'dependencies.dependency.systemPath' for test:b:jar should not point at files within the project directory" );
     }
 
+    @Test
     public void testInvalidVersionInPluginManagement()
         throws Exception
     {
@@ -673,6 +718,7 @@ public class DefaultModelValidatorTest
 
     }
 
+    @Test
     public void testInvalidGroupIdInPluginManagement()
         throws Exception
     {
@@ -685,6 +731,7 @@ public class DefaultModelValidatorTest
 
     }
 
+    @Test
     public void testInvalidArtifactIdInPluginManagement()
         throws Exception
     {
@@ -697,6 +744,7 @@ public class DefaultModelValidatorTest
 
     }
 
+    @Test
     public void testInvalidGroupAndArtifactIdInPluginManagement()
         throws Exception
     {
@@ -712,6 +760,7 @@ public class DefaultModelValidatorTest
 
     }
 
+    @Test
     public void testMissingReportPluginVersion()
         throws Exception
     {
@@ -720,6 +769,7 @@ public class DefaultModelValidatorTest
         assertViolations( result, 0, 0, 0 );
     }
 
+    @Test
     public void testDeprecatedDependencyMetaversionsLatestAndRelease()
         throws Exception
     {
@@ -733,6 +783,7 @@ public class DefaultModelValidatorTest
                         "'dependencies.dependency.version' for test:b:jar is either LATEST or RELEASE (both of them are being deprecated)" );
     }
 
+    @Test
     public void testSelfReferencingDependencyInRawModel()
         throws Exception
     {
@@ -745,6 +796,7 @@ public class DefaultModelValidatorTest
 
     }
 
+    @Test
     public void testSelfReferencingDependencyWithClassifierInRawModel() throws Exception
     {
         SimpleProblemCollector result = validateRaw( "raw-model/self-referencing-classifier.xml" );
@@ -752,6 +804,7 @@ public class DefaultModelValidatorTest
         assertViolations( result, 0, 0, 0 );
     }
 
+    @Test
     public void testCiFriendlySha1()
         throws Exception
     {
@@ -759,6 +812,7 @@ public class DefaultModelValidatorTest
         assertViolations( result, 0, 0, 0 );
     }
 
+    @Test
     public void testCiFriendlyRevision()
         throws Exception
     {
@@ -766,6 +820,7 @@ public class DefaultModelValidatorTest
         assertViolations( result, 0, 0, 0 );
     }
 
+    @Test
     public void testCiFriendlyChangeList()
         throws Exception
     {
@@ -773,6 +828,7 @@ public class DefaultModelValidatorTest
         assertViolations( result, 0, 0, 0 );
     }
 
+    @Test
     public void testCiFriendlyAllExpressions()
         throws Exception
     {
@@ -780,6 +836,7 @@ public class DefaultModelValidatorTest
         assertViolations( result, 0, 0, 0 );
     }
 
+    @Test
     public void testCiFriendlyBad()
         throws Exception
     {
@@ -788,6 +845,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'version' contains an expression but should be a constant.", result.getWarnings().get( 0 ) );
     }
 
+    @Test
     public void testCiFriendlyBadSha1Plus()
         throws Exception
     {
@@ -796,6 +854,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'version' contains an expression but should be a constant.", result.getWarnings().get( 0 ) );
     }
 
+    @Test
     public void testCiFriendlyBadSha1Plus2()
         throws Exception
     {
@@ -804,6 +863,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'version' contains an expression but should be a constant.", result.getWarnings().get( 0 ) );
     }
 
+    @Test
     public void testParentVersionLATEST()
         throws Exception
     {
@@ -812,6 +872,7 @@ public class DefaultModelValidatorTest
         assertEquals( "'parent.version' is either LATEST or RELEASE (both of them are being deprecated)", result.getWarnings().get( 0 ) );
     }
 
+    @Test
     public void testParentVersionRELEASE()
         throws Exception
     {
diff --git a/maven-model/src/test/java/org/apache/maven/model/ActivationFileTest.java b/maven-model/src/test/java/org/apache/maven/model/ActivationFileTest.java
index f88da58142..cbfdc2a69b 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ActivationFileTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ActivationFileTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code ActivationFile}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ActivationFileTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new ActivationFile().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new ActivationFile().equals( null ) );
@@ -42,12 +47,14 @@ public class ActivationFileTest
         new ActivationFile().equals( new ActivationFile() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         ActivationFile thing = new ActivationFile();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new ActivationFile().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ActivationOSTest.java b/maven-model/src/test/java/org/apache/maven/model/ActivationOSTest.java
index f0d3045078..3be5cd9826 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ActivationOSTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ActivationOSTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code ActivationOS}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ActivationOSTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new ActivationOS().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new ActivationOS().equals( null ) );
@@ -42,12 +47,14 @@ public class ActivationOSTest
         new ActivationOS().equals( new ActivationOS() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         ActivationOS thing = new ActivationOS();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new ActivationOS().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ActivationPropertyTest.java b/maven-model/src/test/java/org/apache/maven/model/ActivationPropertyTest.java
index 5f5e048a90..564adc010e 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ActivationPropertyTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ActivationPropertyTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code ActivationProperty}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ActivationPropertyTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new ActivationProperty().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new ActivationProperty().equals( null ) );
@@ -42,12 +47,14 @@ public class ActivationPropertyTest
         new ActivationProperty().equals( new ActivationProperty() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         ActivationProperty thing = new ActivationProperty();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new ActivationProperty().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ActivationTest.java b/maven-model/src/test/java/org/apache/maven/model/ActivationTest.java
index f6d0f91002..520c0a9073 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ActivationTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ActivationTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Activation}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ActivationTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Activation().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Activation().equals( null ) );
@@ -42,12 +47,14 @@ public class ActivationTest
         new Activation().equals( new Activation() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Activation thing = new Activation();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Activation().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/BuildTest.java b/maven-model/src/test/java/org/apache/maven/model/BuildTest.java
index 80a60d57ea..3a14bd3c3e 100644
--- a/maven-model/src/test/java/org/apache/maven/model/BuildTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/BuildTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Build}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class BuildTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Build().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Build().equals( null ) );
@@ -42,12 +47,14 @@ public class BuildTest
         new Build().equals( new Build() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Build thing = new Build();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Build().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/CiManagementTest.java b/maven-model/src/test/java/org/apache/maven/model/CiManagementTest.java
index 7194c8442c..ee6d41d559 100644
--- a/maven-model/src/test/java/org/apache/maven/model/CiManagementTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/CiManagementTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code CiManagement}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class CiManagementTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new CiManagement().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new CiManagement().equals( null ) );
@@ -42,12 +47,14 @@ public class CiManagementTest
         new CiManagement().equals( new CiManagement() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         CiManagement thing = new CiManagement();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new CiManagement().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ContributorTest.java b/maven-model/src/test/java/org/apache/maven/model/ContributorTest.java
index 491b99ae82..e2f3dbb5c8 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ContributorTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ContributorTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Contributor}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ContributorTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Contributor().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Contributor().equals( null ) );
@@ -42,12 +47,14 @@ public class ContributorTest
         new Contributor().equals( new Contributor() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Contributor thing = new Contributor();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Contributor().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/DependencyManagementTest.java b/maven-model/src/test/java/org/apache/maven/model/DependencyManagementTest.java
index 7702c62fd9..e63d224332 100644
--- a/maven-model/src/test/java/org/apache/maven/model/DependencyManagementTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/DependencyManagementTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code DependencyManagement}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class DependencyManagementTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new DependencyManagement().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new DependencyManagement().equals( null ) );
@@ -42,12 +47,14 @@ public class DependencyManagementTest
         new DependencyManagement().equals( new DependencyManagement() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         DependencyManagement thing = new DependencyManagement();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new DependencyManagement().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/DependencyTest.java b/maven-model/src/test/java/org/apache/maven/model/DependencyTest.java
index ec0a833655..6b7bc3f325 100644
--- a/maven-model/src/test/java/org/apache/maven/model/DependencyTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/DependencyTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Dependency}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class DependencyTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Dependency().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Dependency().equals( null ) );
@@ -42,12 +47,14 @@ public class DependencyTest
         new Dependency().equals( new Dependency() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Dependency thing = new Dependency();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Dependency().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/DeploymentRepositoryTest.java b/maven-model/src/test/java/org/apache/maven/model/DeploymentRepositoryTest.java
index 169ec65079..c648ffd293 100644
--- a/maven-model/src/test/java/org/apache/maven/model/DeploymentRepositoryTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/DeploymentRepositoryTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code DeploymentRepository}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class DeploymentRepositoryTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new DeploymentRepository().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new DeploymentRepository().equals( null ) );
@@ -42,12 +47,14 @@ public class DeploymentRepositoryTest
         new DeploymentRepository().equals( new DeploymentRepository() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         DeploymentRepository thing = new DeploymentRepository();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new DeploymentRepository().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/DeveloperTest.java b/maven-model/src/test/java/org/apache/maven/model/DeveloperTest.java
index c0dfe56dfa..61d86f0840 100644
--- a/maven-model/src/test/java/org/apache/maven/model/DeveloperTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/DeveloperTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Developer}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class DeveloperTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Developer().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Developer().equals( null ) );
@@ -42,12 +47,14 @@ public class DeveloperTest
         new Developer().equals( new Developer() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Developer thing = new Developer();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Developer().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/DistributionManagementTest.java b/maven-model/src/test/java/org/apache/maven/model/DistributionManagementTest.java
index 0314d61b71..db8ba213ba 100644
--- a/maven-model/src/test/java/org/apache/maven/model/DistributionManagementTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/DistributionManagementTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code DistributionManagement}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class DistributionManagementTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new DistributionManagement().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new DistributionManagement().equals( null ) );
@@ -42,12 +47,14 @@ public class DistributionManagementTest
         new DistributionManagement().equals( new DistributionManagement() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         DistributionManagement thing = new DistributionManagement();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new DistributionManagement().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ExclusionTest.java b/maven-model/src/test/java/org/apache/maven/model/ExclusionTest.java
index 6febacebed..90e4b744d3 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ExclusionTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ExclusionTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Exclusion}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ExclusionTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Exclusion().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Exclusion().equals( null ) );
@@ -42,12 +47,14 @@ public class ExclusionTest
         new Exclusion().equals( new Exclusion() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Exclusion thing = new Exclusion();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Exclusion().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ExtensionTest.java b/maven-model/src/test/java/org/apache/maven/model/ExtensionTest.java
index 4b8cd8a117..218ff50b6a 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ExtensionTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ExtensionTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Extension}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ExtensionTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Extension().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Extension().equals( null ) );
@@ -42,12 +47,14 @@ public class ExtensionTest
         new Extension().equals( new Extension() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Extension thing = new Extension();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Extension().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/IssueManagementTest.java b/maven-model/src/test/java/org/apache/maven/model/IssueManagementTest.java
index 5e50c15715..27e1eb0a32 100644
--- a/maven-model/src/test/java/org/apache/maven/model/IssueManagementTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/IssueManagementTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code IssueManagement}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class IssueManagementTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new IssueManagement().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new IssueManagement().equals( null ) );
@@ -42,12 +47,14 @@ public class IssueManagementTest
         new IssueManagement().equals( new IssueManagement() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         IssueManagement thing = new IssueManagement();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new IssueManagement().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/LicenseTest.java b/maven-model/src/test/java/org/apache/maven/model/LicenseTest.java
index 179921b2b7..dd56616fb0 100644
--- a/maven-model/src/test/java/org/apache/maven/model/LicenseTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/LicenseTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code License}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class LicenseTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new License().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new License().equals( null ) );
@@ -42,12 +47,14 @@ public class LicenseTest
         new License().equals( new License() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         License thing = new License();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new License().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/MailingListTest.java b/maven-model/src/test/java/org/apache/maven/model/MailingListTest.java
index 612969520d..5de9edcf30 100644
--- a/maven-model/src/test/java/org/apache/maven/model/MailingListTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/MailingListTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code MailingList}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class MailingListTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new MailingList().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new MailingList().equals( null ) );
@@ -42,12 +47,14 @@ public class MailingListTest
         new MailingList().equals( new MailingList() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         MailingList thing = new MailingList();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new MailingList().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ModelTest.java b/maven-model/src/test/java/org/apache/maven/model/ModelTest.java
index c9ec4da96a..37adc82166 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ModelTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ModelTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Model}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ModelTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Model().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Model().equals( null ) );
@@ -42,12 +47,14 @@ public class ModelTest
         new Model().equals( new Model() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Model thing = new Model();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Model().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/NotifierTest.java b/maven-model/src/test/java/org/apache/maven/model/NotifierTest.java
index 4e5d0685ca..026632ad60 100644
--- a/maven-model/src/test/java/org/apache/maven/model/NotifierTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/NotifierTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Notifier}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class NotifierTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Notifier().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Notifier().equals( null ) );
@@ -42,12 +47,14 @@ public class NotifierTest
         new Notifier().equals( new Notifier() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Notifier thing = new Notifier();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Notifier().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/OrganizationTest.java b/maven-model/src/test/java/org/apache/maven/model/OrganizationTest.java
index 48abe77e2b..ef19d2a546 100644
--- a/maven-model/src/test/java/org/apache/maven/model/OrganizationTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/OrganizationTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Organization}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class OrganizationTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Organization().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Organization().equals( null ) );
@@ -42,12 +47,14 @@ public class OrganizationTest
         new Organization().equals( new Organization() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Organization thing = new Organization();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Organization().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ParentTest.java b/maven-model/src/test/java/org/apache/maven/model/ParentTest.java
index 78d45672a3..d8690fc3c9 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ParentTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ParentTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Parent}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ParentTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Parent().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Parent().equals( null ) );
@@ -42,12 +47,14 @@ public class ParentTest
         new Parent().equals( new Parent() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Parent thing = new Parent();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Parent().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/PluginConfigurationTest.java b/maven-model/src/test/java/org/apache/maven/model/PluginConfigurationTest.java
index cbb123d5ab..3e52df79f6 100644
--- a/maven-model/src/test/java/org/apache/maven/model/PluginConfigurationTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/PluginConfigurationTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code PluginConfiguration}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class PluginConfigurationTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new PluginConfiguration().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new PluginConfiguration().equals( null ) );
@@ -42,12 +47,14 @@ public class PluginConfigurationTest
         new PluginConfiguration().equals( new PluginConfiguration() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         PluginConfiguration thing = new PluginConfiguration();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new PluginConfiguration().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/PluginContainerTest.java b/maven-model/src/test/java/org/apache/maven/model/PluginContainerTest.java
index 878298cf3e..ed4e9e3d79 100644
--- a/maven-model/src/test/java/org/apache/maven/model/PluginContainerTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/PluginContainerTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code PluginContainer}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class PluginContainerTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new PluginContainer().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new PluginContainer().equals( null ) );
@@ -42,12 +47,14 @@ public class PluginContainerTest
         new PluginContainer().equals( new PluginContainer() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         PluginContainer thing = new PluginContainer();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new PluginContainer().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/PluginExecutionTest.java b/maven-model/src/test/java/org/apache/maven/model/PluginExecutionTest.java
index e8fff5129a..35b78bdd89 100644
--- a/maven-model/src/test/java/org/apache/maven/model/PluginExecutionTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/PluginExecutionTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code PluginExecution}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class PluginExecutionTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new PluginExecution().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new PluginExecution().equals( null ) );
@@ -42,12 +47,14 @@ public class PluginExecutionTest
         new PluginExecution().equals( new PluginExecution() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         PluginExecution thing = new PluginExecution();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new PluginExecution().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/PluginManagementTest.java b/maven-model/src/test/java/org/apache/maven/model/PluginManagementTest.java
index 571399feb0..b4d826624c 100644
--- a/maven-model/src/test/java/org/apache/maven/model/PluginManagementTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/PluginManagementTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code PluginManagement}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class PluginManagementTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new PluginManagement().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new PluginManagement().equals( null ) );
@@ -42,12 +47,14 @@ public class PluginManagementTest
         new PluginManagement().equals( new PluginManagement() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         PluginManagement thing = new PluginManagement();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new PluginManagement().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/PluginTest.java b/maven-model/src/test/java/org/apache/maven/model/PluginTest.java
index 582145e096..d8e345b6b3 100644
--- a/maven-model/src/test/java/org/apache/maven/model/PluginTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/PluginTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Plugin}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class PluginTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Plugin().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Plugin().equals( null ) );
@@ -42,12 +47,14 @@ public class PluginTest
         new Plugin().equals( new Plugin() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Plugin thing = new Plugin();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Plugin().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/PrerequisitesTest.java b/maven-model/src/test/java/org/apache/maven/model/PrerequisitesTest.java
index 727f2c3f23..2c91e47108 100644
--- a/maven-model/src/test/java/org/apache/maven/model/PrerequisitesTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/PrerequisitesTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Prerequisites}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class PrerequisitesTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Prerequisites().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Prerequisites().equals( null ) );
@@ -42,12 +47,14 @@ public class PrerequisitesTest
         new Prerequisites().equals( new Prerequisites() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Prerequisites thing = new Prerequisites();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Prerequisites().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ProfileTest.java b/maven-model/src/test/java/org/apache/maven/model/ProfileTest.java
index 512e2a8892..ac719e4677 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ProfileTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ProfileTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Profile}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ProfileTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Profile().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Profile().equals( null ) );
@@ -42,12 +47,14 @@ public class ProfileTest
         new Profile().equals( new Profile() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Profile thing = new Profile();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Profile().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/RelocationTest.java b/maven-model/src/test/java/org/apache/maven/model/RelocationTest.java
index 265304d8da..ea825a6fd3 100644
--- a/maven-model/src/test/java/org/apache/maven/model/RelocationTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/RelocationTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Relocation}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class RelocationTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Relocation().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Relocation().equals( null ) );
@@ -42,12 +47,14 @@ public class RelocationTest
         new Relocation().equals( new Relocation() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Relocation thing = new Relocation();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Relocation().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ReportPluginTest.java b/maven-model/src/test/java/org/apache/maven/model/ReportPluginTest.java
index d10cb791d5..094d2d5f69 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ReportPluginTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ReportPluginTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code ReportPlugin}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ReportPluginTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new ReportPlugin().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new ReportPlugin().equals( null ) );
@@ -42,12 +47,14 @@ public class ReportPluginTest
         new ReportPlugin().equals( new ReportPlugin() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         ReportPlugin thing = new ReportPlugin();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new ReportPlugin().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ReportSetTest.java b/maven-model/src/test/java/org/apache/maven/model/ReportSetTest.java
index 2f51415329..c0bb2575c2 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ReportSetTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ReportSetTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code ReportSet}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ReportSetTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new ReportSet().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new ReportSet().equals( null ) );
@@ -42,12 +47,14 @@ public class ReportSetTest
         new ReportSet().equals( new ReportSet() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         ReportSet thing = new ReportSet();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new ReportSet().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ReportingTest.java b/maven-model/src/test/java/org/apache/maven/model/ReportingTest.java
index dbc0fa2256..3b04d02405 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ReportingTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ReportingTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Reporting}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ReportingTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Reporting().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Reporting().equals( null ) );
@@ -42,12 +47,14 @@ public class ReportingTest
         new Reporting().equals( new Reporting() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Reporting thing = new Reporting();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Reporting().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/RepositoryPolicyTest.java b/maven-model/src/test/java/org/apache/maven/model/RepositoryPolicyTest.java
index 3ae3435040..770bce206d 100644
--- a/maven-model/src/test/java/org/apache/maven/model/RepositoryPolicyTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/RepositoryPolicyTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code RepositoryPolicy}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class RepositoryPolicyTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new RepositoryPolicy().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new RepositoryPolicy().equals( null ) );
@@ -42,12 +47,14 @@ public class RepositoryPolicyTest
         new RepositoryPolicy().equals( new RepositoryPolicy() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         RepositoryPolicy thing = new RepositoryPolicy();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new RepositoryPolicy().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/RepositoryTest.java b/maven-model/src/test/java/org/apache/maven/model/RepositoryTest.java
index b68b70a1ff..62f32d723f 100644
--- a/maven-model/src/test/java/org/apache/maven/model/RepositoryTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/RepositoryTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Repository}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class RepositoryTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Repository().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Repository().equals( null ) );
@@ -42,12 +47,14 @@ public class RepositoryTest
         new Repository().equals( new Repository() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Repository thing = new Repository();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Repository().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ResourceTest.java b/maven-model/src/test/java/org/apache/maven/model/ResourceTest.java
index fa40ab43d9..3e5b1b3a02 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ResourceTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ResourceTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Resource}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ResourceTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Resource().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Resource().equals( null ) );
@@ -42,12 +47,14 @@ public class ResourceTest
         new Resource().equals( new Resource() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Resource thing = new Resource();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Resource().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/ScmTest.java b/maven-model/src/test/java/org/apache/maven/model/ScmTest.java
index 4d7699310e..a6ccc248d3 100644
--- a/maven-model/src/test/java/org/apache/maven/model/ScmTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/ScmTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Scm}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class ScmTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Scm().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Scm().equals( null ) );
@@ -42,12 +47,14 @@ public class ScmTest
         new Scm().equals( new Scm() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Scm thing = new Scm();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Scm().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/SiteTest.java b/maven-model/src/test/java/org/apache/maven/model/SiteTest.java
index 84896bb4d7..5fe49756cb 100644
--- a/maven-model/src/test/java/org/apache/maven/model/SiteTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/SiteTest.java
@@ -19,7 +19,11 @@ package org.apache.maven.model;
  * under the License.
  */
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests {@code Site}.
@@ -27,14 +31,15 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class SiteTest
-    extends TestCase
 {
 
+    @Test
     public void testHashCodeNullSafe()
     {
         new Site().hashCode();
     }
 
+    @Test
     public void testEqualsNullSafe()
     {
         assertFalse( new Site().equals( null ) );
@@ -42,12 +47,14 @@ public class SiteTest
         new Site().equals( new Site() );
     }
 
+    @Test
     public void testEqualsIdentity()
     {
         Site thing = new Site();
         assertTrue( thing.equals( thing ) );
     }
 
+    @Test
     public void testToStringNullSafe()
     {
         assertNotNull( new Site().toString() );
diff --git a/maven-model/src/test/java/org/apache/maven/model/merge/ModelMergerTest.java b/maven-model/src/test/java/org/apache/maven/model/merge/ModelMergerTest.java
index 732c277894..104b9771ae 100644
--- a/maven-model/src/test/java/org/apache/maven/model/merge/ModelMergerTest.java
+++ b/maven-model/src/test/java/org/apache/maven/model/merge/ModelMergerTest.java
@@ -1,5 +1,6 @@
 package org.apache.maven.model.merge;
 
+import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.contains;
 import static org.hamcrest.Matchers.is;
 
@@ -22,8 +23,6 @@ import static org.hamcrest.Matchers.is;
  * under the License.
  */
 
-import static org.junit.Assert.assertThat;
-
 import java.util.Arrays;
 
 import org.apache.maven.model.Build;
@@ -37,7 +36,7 @@ import org.apache.maven.model.PluginExecution;
 import org.apache.maven.model.Profile;
 import org.apache.maven.model.ReportSet;
 import org.apache.maven.model.Repository;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * ModelMerger is based on same instances, subclasses should override KeyComputer per type
diff --git a/maven-plugin-api/src/test/java/org/apache/maven/plugin/descriptor/PluginDescriptorBuilderTest.java b/maven-plugin-api/src/test/java/org/apache/maven/plugin/descriptor/PluginDescriptorBuilderTest.java
index b9f5ab9e9e..5b245af208 100644
--- a/maven-plugin-api/src/test/java/org/apache/maven/plugin/descriptor/PluginDescriptorBuilderTest.java
+++ b/maven-plugin-api/src/test/java/org/apache/maven/plugin/descriptor/PluginDescriptorBuilderTest.java
@@ -27,8 +27,10 @@ import org.codehaus.plexus.component.repository.ComponentRequirement;
 import org.codehaus.plexus.configuration.PlexusConfiguration;
 import org.codehaus.plexus.configuration.PlexusConfigurationException;
 import org.codehaus.plexus.util.ReaderFactory;
+import org.junit.jupiter.api.Test;
 
-import junit.framework.TestCase;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  * Tests {@link PluginDescriptorBuilder}.
@@ -36,7 +38,6 @@ import junit.framework.TestCase;
  * @author Benjamin Bentmann
  */
 public class PluginDescriptorBuilderTest
-    extends TestCase
 {
 
     private PluginDescriptor build( String resource )
@@ -47,6 +48,7 @@ public class PluginDescriptorBuilderTest
         return new PluginDescriptorBuilder().build( reader );
     }
 
+    @Test
     public void testBuildReader()
         throws Exception
     {
diff --git a/maven-resolver-provider/pom.xml b/maven-resolver-provider/pom.xml
index de33876bd1..5bbeb849c3 100644
--- a/maven-resolver-provider/pom.xml
+++ b/maven-resolver-provider/pom.xml
@@ -83,6 +83,11 @@ under the License.
       </exclusions>
     </dependency>
     <!-- Testing -->
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-test-support</artifactId>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.apache.maven.resolver</groupId>
       <artifactId>maven-resolver-connector-basic</artifactId>
diff --git a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/AbstractRepositoryTestCase.java b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/AbstractRepositoryTestCase.java
index b81450cea6..0301a605eb 100644
--- a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/AbstractRepositoryTestCase.java
+++ b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/AbstractRepositoryTestCase.java
@@ -21,50 +21,36 @@ package org.apache.maven.repository.internal;
 
 import java.net.MalformedURLException;
 
+import javax.inject.Inject;
+
+import org.apache.maven.test.PlexusTestCase;
 import org.apache.maven.repository.internal.util.ConsoleRepositoryListener;
 import org.apache.maven.repository.internal.util.ConsoleTransferListener;
-import org.codehaus.plexus.ContainerConfiguration;
-import org.codehaus.plexus.PlexusConstants;
-import org.codehaus.plexus.PlexusTestCase;
 import org.eclipse.aether.DefaultRepositorySystemSession;
 import org.eclipse.aether.RepositorySystem;
 import org.eclipse.aether.RepositorySystemSession;
 import org.eclipse.aether.repository.LocalRepository;
 import org.eclipse.aether.repository.RemoteRepository;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 
 public abstract class AbstractRepositoryTestCase
     extends PlexusTestCase
 {
+    @Inject
     protected RepositorySystem system;
 
     protected RepositorySystemSession session;
 
+    @BeforeEach
     @Override
-    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
-    {
-        super.customizeContainerConfiguration( containerConfiguration );
-        containerConfiguration.setAutoWiring( true );
-        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
-    }
-
-    @Override
-    protected void setUp()
+    public void setUp()
         throws Exception
     {
         super.setUp();
-        system = lookup( RepositorySystem.class );
         session = newMavenRepositorySystemSession( system );
     }
 
-    @Override
-    protected void tearDown()
-        throws Exception
-    {
-        session = null;
-        system = null;
-        super.tearDown();
-    }
-
     public static RepositorySystemSession newMavenRepositorySystemSession( RepositorySystem system )
     {
         DefaultRepositorySystemSession session = MavenRepositorySystemUtils.newSession();
diff --git a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultArtifactDescriptorReaderTest.java b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultArtifactDescriptorReaderTest.java
index e873138093..cd45fe36d9 100644
--- a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultArtifactDescriptorReaderTest.java
+++ b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultArtifactDescriptorReaderTest.java
@@ -19,21 +19,25 @@ package org.apache.maven.repository.internal;
  * under the License.
  */
 
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.verify;
-
 import org.eclipse.aether.RepositoryEvent;
 import org.eclipse.aether.RepositoryEvent.EventType;
 import org.eclipse.aether.artifact.DefaultArtifact;
 import org.eclipse.aether.impl.ArtifactDescriptorReader;
 import org.eclipse.aether.impl.RepositoryEventDispatcher;
 import org.eclipse.aether.resolution.ArtifactDescriptorRequest;
+import org.junit.jupiter.api.Test;
 import org.mockito.ArgumentCaptor;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
 public class DefaultArtifactDescriptorReaderTest
     extends AbstractRepositoryTestCase
 {
 
+    @Test
     public void testMng5459()
         throws Exception
     {
@@ -69,9 +73,6 @@ public class DefaultArtifactDescriptorReaderTest
             }
         }
 
-        if( !missingArtifactDescriptor )
-        {
-            fail( "Expected missing artifact descriptor for org.apache.maven.its:dep-mng5459:pom:0.4.0-20130404.090532-2" );
-        }
+        assertTrue( missingArtifactDescriptor, "Expected missing artifact descriptor for org.apache.maven.its:dep-mng5459:pom:0.4.0-20130404.090532-2" );
     }
 }
diff --git a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultModelResolverTest.java b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultModelResolverTest.java
index e895bbb099..ce09b4b325 100644
--- a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultModelResolverTest.java
+++ b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultModelResolverTest.java
@@ -30,6 +30,12 @@ import org.codehaus.plexus.component.repository.exception.ComponentLookupExcepti
 import org.eclipse.aether.impl.ArtifactResolver;
 import org.eclipse.aether.impl.RemoteRepositoryManager;
 import org.eclipse.aether.impl.VersionRangeResolver;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Test cases for the default {@code ModelResolver} implementation.
@@ -48,6 +54,7 @@ public final class DefaultModelResolverTest extends AbstractRepositoryTestCase
         super();
     }
 
+    @Test
     public void testResolveParentThrowsUnresolvableModelExceptionWhenNotFound() throws Exception
     {
         final Parent parent = new Parent();
@@ -55,18 +62,15 @@ public final class DefaultModelResolverTest extends AbstractRepositoryTestCase
         parent.setArtifactId( "artifact" );
         parent.setVersion( "0" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( parent );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertNotNull( e.getMessage() );
-            assertTrue( e.getMessage().startsWith( "Could not find artifact ut.simple:artifact:pom:0 in repo" ) );
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( parent ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertNotNull( e.getMessage() );
+        assertTrue( e.getMessage().startsWith( "Could not find artifact ut.simple:artifact:pom:0 in repo" ) );
     }
 
+    @Test
     public void testResolveParentThrowsUnresolvableModelExceptionWhenNoMatchingVersionFound() throws Exception
     {
         final Parent parent = new Parent();
@@ -74,19 +78,16 @@ public final class DefaultModelResolverTest extends AbstractRepositoryTestCase
         parent.setArtifactId( "artifact" );
         parent.setVersion( "[2.0,2.1)" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( parent );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertEquals( "No versions matched the requested parent version range '[2.0,2.1)'",
-                          e.getMessage() );
-
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( parent ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertNotNull( e.getMessage() );
+        assertEquals( "No versions matched the requested parent version range '[2.0,2.1)'",
+                      e.getMessage() );
     }
 
+    @Test
     public void testResolveParentThrowsUnresolvableModelExceptionWhenUsingRangesWithoutUpperBound() throws Exception
     {
         final Parent parent = new Parent();
@@ -94,19 +95,15 @@ public final class DefaultModelResolverTest extends AbstractRepositoryTestCase
         parent.setArtifactId( "artifact" );
         parent.setVersion( "[1.0,)" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( parent );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertEquals( "The requested parent version range '[1.0,)' does not specify an upper bound",
-                          e.getMessage() );
-
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( parent ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertEquals( "The requested parent version range '[1.0,)' does not specify an upper bound",
+                      e.getMessage() );
     }
 
+    @Test
     public void testResolveParentSuccessfullyResolvesExistingParentWithoutRange() throws Exception
     {
         final Parent parent = new Parent();
@@ -118,6 +115,7 @@ public final class DefaultModelResolverTest extends AbstractRepositoryTestCase
         assertEquals( "1.0", parent.getVersion() );
     }
 
+    @Test
     public void testResolveParentSuccessfullyResolvesExistingParentUsingHighestVersion() throws Exception
     {
         final Parent parent = new Parent();
@@ -129,6 +127,7 @@ public final class DefaultModelResolverTest extends AbstractRepositoryTestCase
         assertEquals( "1.0", parent.getVersion() );
     }
 
+    @Test
     public void testResolveDependencyThrowsUnresolvableModelExceptionWhenNotFound() throws Exception
     {
         final Dependency dependency = new Dependency();
@@ -136,18 +135,15 @@ public final class DefaultModelResolverTest extends AbstractRepositoryTestCase
         dependency.setArtifactId( "artifact" );
         dependency.setVersion( "0" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( dependency );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertNotNull( e.getMessage() );
-            assertTrue( e.getMessage().startsWith( "Could not find artifact ut.simple:artifact:pom:0 in repo" ) );
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( dependency ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertNotNull( e.getMessage() );
+        assertTrue( e.getMessage().startsWith( "Could not find artifact ut.simple:artifact:pom:0 in repo" ) );
     }
 
+    @Test
     public void testResolveDependencyThrowsUnresolvableModelExceptionWhenNoMatchingVersionFound() throws Exception
     {
         final Dependency dependency = new Dependency();
@@ -155,19 +151,15 @@ public final class DefaultModelResolverTest extends AbstractRepositoryTestCase
         dependency.setArtifactId( "artifact" );
         dependency.setVersion( "[2.0,2.1)" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( dependency );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertEquals( "No versions matched the requested dependency version range '[2.0,2.1)'",
-                          e.getMessage() );
-
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( dependency ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertEquals( "No versions matched the requested dependency version range '[2.0,2.1)'",
+                      e.getMessage() );
     }
 
+    @Test
     public void testResolveDependencyThrowsUnresolvableModelExceptionWhenUsingRangesWithoutUpperBound() throws Exception
     {
         final Dependency dependency = new Dependency();
@@ -175,19 +167,15 @@ public final class DefaultModelResolverTest extends AbstractRepositoryTestCase
         dependency.setArtifactId( "artifact" );
         dependency.setVersion( "[1.0,)" );
 
-        try
-        {
-            this.newModelResolver().resolveModel( dependency );
-            fail( "Expected 'UnresolvableModelException' not thrown." );
-        }
-        catch ( final UnresolvableModelException e )
-        {
-            assertEquals( "The requested dependency version range '[1.0,)' does not specify an upper bound",
-                          e.getMessage() );
-
-        }
+        UnresolvableModelException e = assertThrows(
+                UnresolvableModelException.class,
+                () -> newModelResolver().resolveModel( dependency ),
+                "Expected 'UnresolvableModelException' not thrown." );
+        assertEquals( "The requested dependency version range '[1.0,)' does not specify an upper bound",
+                      e.getMessage() );
     }
 
+    @Test
     public void testResolveDependencySuccessfullyResolvesExistingDependencyWithoutRange() throws Exception
     {
         final Dependency dependency = new Dependency();
@@ -199,6 +187,7 @@ public final class DefaultModelResolverTest extends AbstractRepositoryTestCase
         assertEquals( "1.0", dependency.getVersion() );
     }
 
+    @Test
     public void testResolveDependencySuccessfullyResolvesExistingDependencyUsingHighestVersion() throws Exception
     {
         final Dependency dependency = new Dependency();
diff --git a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultVersionResolverTest.java b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultVersionResolverTest.java
index 90dd6a4cf3..8eebaf55a4 100644
--- a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultVersionResolverTest.java
+++ b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/DefaultVersionResolverTest.java
@@ -19,34 +19,25 @@ package org.apache.maven.repository.internal;
  * under the License.
  */
 
+import javax.inject.Inject;
+
 import org.eclipse.aether.artifact.Artifact;
-import org.eclipse.aether.impl.VersionResolver;
+import org.eclipse.aether.artifact.DefaultArtifact;
 import org.eclipse.aether.resolution.VersionRequest;
 import org.eclipse.aether.resolution.VersionResult;
-import org.eclipse.aether.artifact.DefaultArtifact;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class DefaultVersionResolverTest
     extends AbstractRepositoryTestCase
 {
+    @Inject
     private DefaultVersionResolver versionResolver;
 
-    @Override
-    protected void setUp()
-        throws Exception
-    {
-        super.setUp();
-        // be sure we're testing the right class, i.e. DefaultVersionResolver.class
-        versionResolver = (DefaultVersionResolver) lookup( VersionResolver.class, "default" );
-    }
-
-    @Override
-    protected void tearDown()
-        throws Exception
-    {
-        versionResolver = null;
-        super.tearDown();
-    }
-
+    @Test
     public void testResolveSeparateInstalledClassifiedNonUniqueVersionedArtifacts()
         throws Exception
     {
@@ -70,6 +61,7 @@ public class DefaultVersionResolverTest
         assertEquals( "07.20.3-20120809.112124-88", resultA.getVersion() );
     }
 
+    @Test
     public void testResolveSeparateInstalledClassifiedNonVersionedArtifacts()
         throws Exception
     {
diff --git a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/MavenRepositorySystemUtilsTest.java b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/MavenRepositorySystemUtilsTest.java
index 768835a555..e54ceb1483 100644
--- a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/MavenRepositorySystemUtilsTest.java
+++ b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/MavenRepositorySystemUtilsTest.java
@@ -22,13 +22,15 @@ package org.apache.maven.repository.internal;
 import org.eclipse.aether.RepositorySystem;
 import org.eclipse.aether.impl.MetadataGeneratorFactory;
 import org.eclipse.aether.spi.locator.ServiceLocator;
+import org.junit.jupiter.api.Test;
 
-import junit.framework.TestCase;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 public class MavenRepositorySystemUtilsTest
-    extends TestCase
 {
 
+    @Test
     public void testGetRepositorySystem()
     {
         ServiceLocator locator = MavenRepositorySystemUtils.newServiceLocator();
@@ -36,6 +38,7 @@ public class MavenRepositorySystemUtilsTest
         assertNotNull( repoSys );
     }
 
+    @Test
     public void testGetMetadataGeneratorFactories()
     {
         ServiceLocator locator = MavenRepositorySystemUtils.newServiceLocator();
diff --git a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/RemoteSnapshotMetadataTest.java b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/RemoteSnapshotMetadataTest.java
index 566710dcdb..86c7269089 100644
--- a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/RemoteSnapshotMetadataTest.java
+++ b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/RemoteSnapshotMetadataTest.java
@@ -19,8 +19,6 @@ package org.apache.maven.repository.internal;
  * under the License.
  */
 
-import static org.junit.Assert.assertTrue;
-
 import java.text.SimpleDateFormat;
 import java.util.Arrays;
 import java.util.Date;
@@ -31,22 +29,24 @@ import java.util.Set;
 
 import org.apache.maven.artifact.repository.metadata.Metadata;
 import org.eclipse.aether.artifact.DefaultArtifact;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class RemoteSnapshotMetadataTest
 {
     private Locale defaultLocale;
 
-    @Before
+    @BeforeEach
     public void setLocaleToUseBuddhistCalendar()
     {
         defaultLocale = Locale.getDefault();
         Locale.setDefault( new Locale( "th", "TH" ) );
     }
 
-    @After
+    @AfterEach
     public void restoreLocale()
     {
         Locale.setDefault( defaultLocale );
@@ -76,7 +76,6 @@ public class RemoteSnapshotMetadataTest
 
         /* Allow for this test running across midnight */
         Set<String> expected = new HashSet<>( Arrays.asList( dateBefore, dateAfter ) );
-        assertTrue( "Expected " + datePart + " to be in " + expected,
-                expected.contains( datePart ) );
+        assertTrue( expected.contains( datePart ), "Expected " + datePart + " to be in " + expected );
     }
 }
diff --git a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/RepositorySystemTest.java b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/RepositorySystemTest.java
index 7943dc802d..77b2781bee 100644
--- a/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/RepositorySystemTest.java
+++ b/maven-resolver-provider/src/test/java/org/apache/maven/repository/internal/RepositorySystemTest.java
@@ -23,6 +23,7 @@ import java.util.Arrays;
 import java.util.List;
 
 import org.eclipse.aether.artifact.Artifact;
+import org.eclipse.aether.artifact.DefaultArtifact;
 import org.eclipse.aether.collection.CollectRequest;
 import org.eclipse.aether.collection.CollectResult;
 import org.eclipse.aether.graph.Dependency;
@@ -31,11 +32,18 @@ import org.eclipse.aether.resolution.ArtifactDescriptorRequest;
 import org.eclipse.aether.resolution.ArtifactDescriptorResult;
 import org.eclipse.aether.resolution.ArtifactRequest;
 import org.eclipse.aether.resolution.ArtifactResult;
-import org.eclipse.aether.artifact.DefaultArtifact;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class RepositorySystemTest
     extends AbstractRepositoryTestCase
 {
+    @Test
     public void testResolveVersionRange()
         throws Exception
     {
@@ -44,6 +52,7 @@ public class RepositorySystemTest
 
     }
 
+    @Test
     public void testResolveVersion()
         throws Exception
     {
@@ -51,6 +60,7 @@ public class RepositorySystemTest
         //                throws VersionResolutionException;
     }
 
+    @Test
     public void testReadArtifactDescriptor()
         throws Exception
     {
@@ -109,6 +119,7 @@ public class RepositorySystemTest
         assertEquals( 4, depArtifact.getProperties().size() );
     }
 
+    @Test
     public void testCollectDependencies()
         throws Exception
     {
@@ -126,6 +137,7 @@ public class RepositorySystemTest
         checkUtSimpleArtifactDependencies( nodes.get( 0 ).getDependency(), nodes.get( 1 ).getDependency() );
     }
 
+    @Test
     public void testResolveArtifact()
         throws Exception
     {
@@ -158,6 +170,7 @@ public class RepositorySystemTest
         assertEquals( filename, artifact.getFile().getName() );
     }
 
+    @Test
     public void testResolveArtifacts()
         throws Exception
     {
@@ -183,6 +196,7 @@ public class RepositorySystemTest
         checkArtifactResult( results.get( 2 ), "artifact-1.0-classifier.zip" );
     }
 
+    @Test
     public void testResolveMetadata()
         throws Exception
     {
@@ -190,6 +204,7 @@ public class RepositorySystemTest
         //                                      Collection<? extends MetadataRequest> requests );
     }
 
+    @Test
     public void testInstall()
         throws Exception
     {
@@ -198,6 +213,7 @@ public class RepositorySystemTest
         // release, snapshot unique ou non unique, attachment
     }
 
+    @Test
     public void testDeploy()
         throws Exception
     {
@@ -205,12 +221,14 @@ public class RepositorySystemTest
         //                throws DeploymentException;
     }
 
+    @Test
     public void testNewLocalRepositoryManager()
         throws Exception
     {
         //LocalRepositoryManager newLocalRepositoryManager( LocalRepository localRepository );
     }
 
+    @Test
     public void testNewSyncContext()
         throws Exception
     {
diff --git a/maven-settings-builder/src/test/java/org/apache/maven/settings/building/DefaultSettingsBuilderFactoryTest.java b/maven-settings-builder/src/test/java/org/apache/maven/settings/building/DefaultSettingsBuilderFactoryTest.java
index 722abf3251..63d62be58e 100644
--- a/maven-settings-builder/src/test/java/org/apache/maven/settings/building/DefaultSettingsBuilderFactoryTest.java
+++ b/maven-settings-builder/src/test/java/org/apache/maven/settings/building/DefaultSettingsBuilderFactoryTest.java
@@ -21,13 +21,14 @@ package org.apache.maven.settings.building;
 
 import java.io.File;
 
-import junit.framework.TestCase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 /**
  * @author Benjamin Bentmann
  */
 public class DefaultSettingsBuilderFactoryTest
-    extends TestCase
 {
 
     private File getSettings( String name )
@@ -35,6 +36,7 @@ public class DefaultSettingsBuilderFactoryTest
         return new File( "src/test/resources/settings/factory/" + name + ".xml" ).getAbsoluteFile();
     }
 
+    @Test
     public void testCompleteWiring()
         throws Exception
     {
diff --git a/maven-settings-builder/src/test/java/org/apache/maven/settings/validation/DefaultSettingsValidatorTest.java b/maven-settings-builder/src/test/java/org/apache/maven/settings/validation/DefaultSettingsValidatorTest.java
index b9f487385b..c23ebd2120 100644
--- a/maven-settings-builder/src/test/java/org/apache/maven/settings/validation/DefaultSettingsValidatorTest.java
+++ b/maven-settings-builder/src/test/java/org/apache/maven/settings/validation/DefaultSettingsValidatorTest.java
@@ -22,47 +22,49 @@ package org.apache.maven.settings.validation;
 import java.util.ArrayList;
 import java.util.List;
 
-import junit.framework.TestCase;
-
 import org.apache.maven.settings.Mirror;
 import org.apache.maven.settings.Profile;
 import org.apache.maven.settings.Proxy;
 import org.apache.maven.settings.Repository;
 import org.apache.maven.settings.Server;
 import org.apache.maven.settings.Settings;
-import org.apache.maven.settings.building.SettingsProblemCollector;
 import org.apache.maven.settings.building.SettingsProblem.Severity;
+import org.apache.maven.settings.building.SettingsProblemCollector;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * @author mkleint
  */
 public class DefaultSettingsValidatorTest
-    extends TestCase
 {
 
     private DefaultSettingsValidator validator;
 
-    protected void setUp()
+    @BeforeEach
+    public void setUp()
         throws Exception
     {
-        super.setUp();
-
         validator = new DefaultSettingsValidator();
     }
 
-    protected void tearDown()
+    @AfterEach
+    public void tearDown()
         throws Exception
     {
         validator = null;
-
-        super.tearDown();
     }
 
     private void assertContains( String msg, String substring )
     {
-        assertTrue( "\"" + substring + "\" was not found in: " + msg, msg.contains( substring ) );
+        assertTrue( msg.contains( substring ), "\"" + substring + "\" was not found in: " + msg );
     }
 
+    @Test
     public void testValidate()
     {
         Settings model = new Settings();
@@ -90,6 +92,7 @@ public class DefaultSettingsValidatorTest
         assertEquals( 0, problems.messages.size() );
     }
 
+    @Test
     public void testValidateMirror()
         throws Exception
     {
@@ -112,6 +115,7 @@ public class DefaultSettingsValidatorTest
         assertContains( problems.messages.get( 3 ), "'mirrors.mirror.id' must not contain any of these characters" );
     }
 
+    @Test
     public void testValidateRepository()
         throws Exception
     {
@@ -137,6 +141,7 @@ public class DefaultSettingsValidatorTest
                         "'profiles.profile[default].repositories.repository.id' must not contain any of these characters" );
     }
 
+    @Test
     public void testValidateUniqueServerId()
         throws Exception
     {
@@ -155,6 +160,7 @@ public class DefaultSettingsValidatorTest
                         "'servers.server.id' must be unique but found duplicate server with id test" );
     }
 
+    @Test
     public void testValidateUniqueProfileId()
         throws Exception
     {
@@ -173,6 +179,7 @@ public class DefaultSettingsValidatorTest
                         "'profiles.profile.id' must be unique but found duplicate profile with id test" );
     }
 
+    @Test
     public void testValidateUniqueRepositoryId()
         throws Exception
     {
@@ -196,6 +203,7 @@ public class DefaultSettingsValidatorTest
             + " but found duplicate repository with id test" );
     }
 
+    @Test
     public void testValidateUniqueProxyId()
         throws Exception
     {
@@ -215,6 +223,7 @@ public class DefaultSettingsValidatorTest
 
     }
 
+    @Test
     public void testValidateProxy()
         throws Exception
     {
diff --git a/maven-slf4j-provider/src/test/java/org/slf4j/impl/MavenLoggerFactoryTest.java b/maven-slf4j-provider/src/test/java/org/slf4j/impl/MavenLoggerFactoryTest.java
index 352d627044..44ac3d2f40 100644
--- a/maven-slf4j-provider/src/test/java/org/slf4j/impl/MavenLoggerFactoryTest.java
+++ b/maven-slf4j-provider/src/test/java/org/slf4j/impl/MavenLoggerFactoryTest.java
@@ -20,16 +20,17 @@ package org.slf4j.impl;
  */
 
 import org.apache.maven.logwrapper.LogLevelRecorder;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
 
 import static org.hamcrest.CoreMatchers.instanceOf;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNotSame;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class MavenLoggerFactoryTest
 {
@@ -80,11 +81,12 @@ public class MavenLoggerFactoryTest
         assertTrue( logLevelRecorder.metThreshold() );
     }
 
-    @Test( expected = IllegalStateException.class )
+    @Test
     public void failOnSeverityThresholdCanOnlyBeSetOnce()
     {
         MavenLoggerFactory mavenLoggerFactory = new MavenLoggerFactory();
         mavenLoggerFactory.setLogLevelRecorder( new LogLevelRecorder( "WARN" ) );
-        mavenLoggerFactory.setLogLevelRecorder( new LogLevelRecorder( "ERROR" ) );
+        assertThrows( IllegalStateException.class,
+                      () -> mavenLoggerFactory.setLogLevelRecorder( new LogLevelRecorder( "ERROR" ) ) );
     }
 }
diff --git a/maven-slf4j-wrapper/pom.xml b/maven-slf4j-wrapper/pom.xml
index bdb768718c..263113566f 100644
--- a/maven-slf4j-wrapper/pom.xml
+++ b/maven-slf4j-wrapper/pom.xml
@@ -40,5 +40,10 @@ under the License.
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-api</artifactId>
     </dependency>
+    <dependency>
+      <groupId>org.hamcrest</groupId>
+      <artifactId>hamcrest-library</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 </project>
\ No newline at end of file
diff --git a/maven-slf4j-wrapper/src/test/java/org/apache/maven/logwrapper/LogLevelRecorderTest.java b/maven-slf4j-wrapper/src/test/java/org/apache/maven/logwrapper/LogLevelRecorderTest.java
index 2bdb8670f7..1e521a90cb 100644
--- a/maven-slf4j-wrapper/src/test/java/org/apache/maven/logwrapper/LogLevelRecorderTest.java
+++ b/maven-slf4j-wrapper/src/test/java/org/apache/maven/logwrapper/LogLevelRecorderTest.java
@@ -19,13 +19,13 @@ package org.apache.maven.logwrapper;
  * under the License.
  */
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.slf4j.event.Level;
 
 import static org.hamcrest.CoreMatchers.containsString;
-import static org.junit.Assert.assertThrows;
-import static org.junit.Assert.assertTrue;
 import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class LogLevelRecorderTest
 {
@@ -38,10 +38,10 @@ public class LogLevelRecorderTest
         assertTrue( logLevelRecorder.metThreshold() );
     }
 
-    @Test( expected = IllegalArgumentException.class )
+    @Test
     public void failsOnLowerThanWarn ()
     {
-        new LogLevelRecorder( "INFO" );
+        assertThrows( IllegalArgumentException.class, () -> new LogLevelRecorder( "INFO" ) );
     }
 
     @Test
diff --git a/maven-test-support/pom.xml b/maven-test-support/pom.xml
new file mode 100644
index 0000000000..c051cc4471
--- /dev/null
+++ b/maven-test-support/pom.xml
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.apache.maven</groupId>
+    <artifactId>maven</artifactId>
+    <version>4.0.0-alpha-1-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>maven-test-support</artifactId>
+
+  <name>Maven Test Support</name>
+  <description>Test support classes for maven.</description>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <version>${junitVersion}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-params</artifactId>
+      <version>${junitVersion}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.inject</groupId>
+      <artifactId>guice</artifactId>
+      <classifier>no_aop</classifier>
+    </dependency>
+    <dependency>
+      <groupId>javax.inject</groupId>
+      <artifactId>javax.inject</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.codehaus.plexus</groupId>
+      <artifactId>plexus-utils</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.codehaus.plexus</groupId>
+      <artifactId>plexus-interpolation</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.codehaus.plexus</groupId>
+      <artifactId>plexus-cipher</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.eclipse.sisu</groupId>
+      <artifactId>org.eclipse.sisu.plexus</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.codehaus.plexus</groupId>
+      <artifactId>plexus-component-annotations</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-params</artifactId>
+      <version>5.7.0</version>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+
+</project>
diff --git a/maven-test-support/src/main/java/org/apache/maven/test/Parameter.java b/maven-test-support/src/main/java/org/apache/maven/test/Parameter.java
new file mode 100644
index 0000000000..f5164c5eef
--- /dev/null
+++ b/maven-test-support/src/main/java/org/apache/maven/test/Parameter.java
@@ -0,0 +1,32 @@
+package org.apache.maven.test;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ * Parameter
+ */
+@Retention( RetentionPolicy.RUNTIME )
+public @interface Parameter
+{
+    int value() default 0;
+}
diff --git a/maven-test-support/src/main/java/org/apache/maven/test/Parameterized.java b/maven-test-support/src/main/java/org/apache/maven/test/Parameterized.java
new file mode 100644
index 0000000000..a15fbaf1f6
--- /dev/null
+++ b/maven-test-support/src/main/java/org/apache/maven/test/Parameterized.java
@@ -0,0 +1,37 @@
+package org.apache.maven.test;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.junit.jupiter.api.extension.ExtendWith;
+
+/**
+ * Parameterized
+ */
+@Target( { ElementType.ANNOTATION_TYPE, ElementType.TYPE } )
+@Retention( RetentionPolicy.RUNTIME )
+@ExtendWith( ParameterizedExtension.class )
+public @interface Parameterized
+{
+}
diff --git a/maven-test-support/src/main/java/org/apache/maven/test/ParameterizedExtension.java b/maven-test-support/src/main/java/org/apache/maven/test/ParameterizedExtension.java
new file mode 100644
index 0000000000..5741db49db
--- /dev/null
+++ b/maven-test-support/src/main/java/org/apache/maven/test/ParameterizedExtension.java
@@ -0,0 +1,182 @@
+package org.apache.maven.test;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.junit.jupiter.api.extension.Extension;
+import org.junit.jupiter.api.extension.ExtensionContext;
+import org.junit.jupiter.api.extension.TestInstancePostProcessor;
+import org.junit.jupiter.api.extension.TestInstantiationException;
+import org.junit.jupiter.api.extension.TestTemplateInvocationContext;
+import org.junit.jupiter.api.extension.TestTemplateInvocationContextProvider;
+import org.junit.jupiter.params.converter.DefaultArgumentConverter;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.platform.commons.util.CollectionUtils;
+import org.junit.platform.commons.util.ReflectionUtils;
+
+import static org.junit.jupiter.params.provider.Arguments.arguments;
+import static org.junit.platform.commons.util.AnnotationUtils.isAnnotated;
+
+/**
+ * ParameterizedExtension
+ */
+public class ParameterizedExtension implements TestTemplateInvocationContextProvider
+{
+
+    @Override
+    public boolean supportsTestTemplate( ExtensionContext context )
+    {
+        return context.getTestMethod()
+                .map( m -> isAnnotated( m, Test.class ) )
+                .orElse( false );
+    }
+
+    @Override
+    public Stream<TestTemplateInvocationContext> provideTestTemplateInvocationContexts(
+            ExtensionContext extensionContext )
+    {
+        Class<?> testClass = extensionContext.getRequiredTestClass();
+        try
+        {
+            List<Method> parameters = getParametersMethods( testClass );
+            if ( parameters.size() != 1 )
+            {
+                throw new IllegalStateException(
+                        "Class " + testClass.getName() + " should provide a single method annotated with @"
+                                                + Parameters.class.getSimpleName() );
+            }
+            Object params = parameters.iterator().next().invoke( null );
+            return CollectionUtils.toStream( params )
+                    .map( ParameterizedExtension::toArguments )
+                    .map( Arguments::get )
+                    .map( ParameterizedTemplate::new );
+        }
+        catch ( Exception e )
+        {
+            throw new IllegalStateException( "Unable to generate test templates for class " + testClass.getName(), e );
+        }
+    }
+
+    private List<Method> getParametersMethods( Class<?> testClass )
+    {
+        List<Method> parameters = Stream.of( testClass.getDeclaredMethods() )
+                .filter( m -> Modifier.isStatic( m.getModifiers() ) )
+                .filter( m -> m.getAnnotation( Parameters.class ) != null )
+                .collect( Collectors.toList() );
+        if ( parameters.isEmpty() && testClass != null )
+        {
+            return getParametersMethods( testClass.getSuperclass() );
+        }
+        else
+        {
+            return parameters;
+        }
+    }
+
+    private static Arguments toArguments( Object item )
+    {
+        // Nothing to do except cast.
+        if ( item instanceof Arguments )
+        {
+            return ( Arguments ) item;
+        }
+        // Pass all multidimensional arrays "as is", in contrast to Object[].
+        // See https://github.com/junit-team/junit5/issues/1665
+        if ( ReflectionUtils.isMultidimensionalArray( item ) )
+        {
+            return arguments( item );
+        }
+        // Special treatment for one-dimensional reference arrays.
+        // See https://github.com/junit-team/junit5/issues/1665
+        if ( item instanceof Object[] )
+        {
+            return arguments( ( Object[] ) item );
+        }
+        // Pass everything else "as is".
+        return arguments( item );
+    }
+
+    /**
+     * ParameterizedTemplate
+     */
+    public static class ParameterizedTemplate implements TestTemplateInvocationContext
+    {
+
+        private final Object[] params;
+
+        public ParameterizedTemplate( Object[] params )
+        {
+            this.params = params;
+        }
+
+        @Override
+        public String getDisplayName( int invocationIndex )
+        {
+            return "[" + invocationIndex + "] "
+                   + Stream.of( params ).map( Object::toString ).collect( Collectors.joining( ", " ) );
+        }
+
+        @Override
+        public List<Extension> getAdditionalExtensions()
+        {
+            return Arrays.asList(
+                    ( TestInstancePostProcessor ) this::postProcessTestInstance );
+        }
+
+        protected void postProcessTestInstance( Object testInstance, ExtensionContext context ) throws Exception
+        {
+            Class<?> clazz = testInstance.getClass();
+            List<Field> fields = hierarchy( clazz )
+                    .map( Class::getDeclaredFields )
+                    .flatMap( Stream::of )
+                    .filter( f -> isAnnotated( f, Parameter.class ) )
+                    .sorted( Comparator.comparing( f -> ( Integer ) f.getAnnotation( Parameter.class ).value() ) )
+                    .collect( Collectors.toList() );
+            if ( params.length != fields.size() )
+            {
+                throw new TestInstantiationException(
+                        "Expected " + fields.size() + " parameters bug got " + params.length + " when instantiating "
+                                                     + clazz.getName() );
+            }
+            for ( int i = 0; i < fields.size(); i++ )
+            {
+                Field f = fields.get( i );
+                f.setAccessible( true );
+                f.set( testInstance, DefaultArgumentConverter.INSTANCE.convert( params[i], f.getType() ) );
+            }
+        }
+
+        protected Stream<Class<?>> hierarchy( Class<?> clazz )
+        {
+            Class<?> superclass = clazz.getSuperclass();
+            return Stream.concat( Stream.of( clazz ), superclass != null ? hierarchy( superclass ) : Stream.empty() );
+        }
+
+    }
+
+}
diff --git a/maven-test-support/src/main/java/org/apache/maven/test/Parameters.java b/maven-test-support/src/main/java/org/apache/maven/test/Parameters.java
new file mode 100644
index 0000000000..b643a3a98f
--- /dev/null
+++ b/maven-test-support/src/main/java/org/apache/maven/test/Parameters.java
@@ -0,0 +1,35 @@
+package org.apache.maven.test;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Parameters
+ */
+@Retention( RetentionPolicy.RUNTIME )
+@Target( ElementType.METHOD )
+public @interface Parameters
+{
+    String name() default "{index}";
+}
diff --git a/maven-test-support/src/main/java/org/apache/maven/test/PlexusTestCase.java b/maven-test-support/src/main/java/org/apache/maven/test/PlexusTestCase.java
new file mode 100644
index 0000000000..91dc25e15f
--- /dev/null
+++ b/maven-test-support/src/main/java/org/apache/maven/test/PlexusTestCase.java
@@ -0,0 +1,325 @@
+package org.apache.maven.test;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/*
+ * Copyright 2001-2006 Codehaus Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.File;
+import java.io.InputStream;
+import java.util.Collections;
+
+import org.codehaus.plexus.ContainerConfiguration;
+import org.codehaus.plexus.DefaultContainerConfiguration;
+import org.codehaus.plexus.DefaultPlexusContainer;
+import org.codehaus.plexus.PlexusConstants;
+import org.codehaus.plexus.PlexusContainer;
+import org.codehaus.plexus.PlexusContainerException;
+import org.codehaus.plexus.component.repository.exception.ComponentLifecycleException;
+import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
+import org.codehaus.plexus.configuration.PlexusConfiguration;
+import org.codehaus.plexus.context.Context;
+import org.codehaus.plexus.context.DefaultContext;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+
+/**
+ * This is a slightly modified version of the original plexus class
+ * available at https://raw.githubusercontent.com/codehaus-plexus/plexus-containers/master/plexus-container-default/
+ *              src/main/java/org/codehaus/plexus/PlexusTestCase.java
+ * in order to migrate the tests to JUnit 4.
+ *
+ * @author Jason van Zyl
+ * @author <a href="mailto:trygvis@inamo.no">Trygve Laugst&oslash;l</a>
+ * @author <a href="mailto:michal@codehaus.org">Michal Maczka</a>
+ * @author Guillaume Nodet
+ */
+public abstract class PlexusTestCase
+{
+    private PlexusContainer container;
+
+    private static String basedir;
+
+    @BeforeEach
+    public void setUp()
+            throws Exception
+    {
+        basedir = getBasedir();
+
+        ( (DefaultPlexusContainer) getContainer() ).addPlexusInjector( Collections.emptyList(),
+                binder -> binder.requestInjection( this ) );
+    }
+
+    @SuppressWarnings( "ResultOfMethodCallIgnored" )
+    protected void setupContainer()
+    {
+        // ----------------------------------------------------------------------------
+        // Context Setup
+        // ----------------------------------------------------------------------------
+
+        DefaultContext context = new DefaultContext();
+
+        context.put( "basedir", getBasedir() );
+
+        customizeContext( context );
+
+        boolean hasPlexusHome = context.contains( "plexus.home" );
+
+        if ( !hasPlexusHome )
+        {
+            File f = getTestFile( "target/plexus-home" );
+
+            if ( !f.isDirectory() )
+            {
+                f.mkdir();
+            }
+
+            context.put( "plexus.home", f.getAbsolutePath() );
+        }
+
+        // ----------------------------------------------------------------------------
+        // Configuration
+        // ----------------------------------------------------------------------------
+
+        String config = getCustomConfigurationName();
+
+        ContainerConfiguration containerConfiguration = new DefaultContainerConfiguration()
+                .setName( "test" )
+                .setContext( context.getContextData() );
+
+        if ( config != null )
+        {
+            containerConfiguration.setContainerConfiguration( config );
+        }
+        else
+        {
+            String resource = getConfigurationName( null );
+
+            containerConfiguration.setContainerConfiguration( resource );
+        }
+
+        customizeContainerConfiguration( containerConfiguration );
+
+        try
+        {
+            container = new DefaultPlexusContainer( containerConfiguration );
+        }
+        catch ( PlexusContainerException e )
+        {
+            throw new IllegalArgumentException( "Failed to create plexus container.", e );
+        }
+    }
+
+    /**
+     * Allow custom test case implementations do augment the default container configuration before
+     * executing tests.
+     *
+     * @param containerConfiguration {@link ContainerConfiguration}.
+     */
+    protected void customizeContainerConfiguration( ContainerConfiguration containerConfiguration )
+    {
+        containerConfiguration.setAutoWiring( true );
+        containerConfiguration.setClassPathScanning( PlexusConstants.SCANNING_INDEX );
+    }
+
+    protected void customizeContext( Context context )
+    {
+    }
+
+    protected PlexusConfiguration customizeComponentConfiguration()
+    {
+        return null;
+    }
+
+    @AfterEach
+    public void tearDown()
+            throws Exception
+    {
+        if ( container != null )
+        {
+            container.dispose();
+
+            container = null;
+        }
+    }
+
+    protected PlexusContainer getContainer()
+    {
+        if ( container == null )
+        {
+            setupContainer();
+        }
+
+        return container;
+    }
+
+    protected InputStream getConfiguration()
+            throws Exception
+    {
+        return getConfiguration( null );
+    }
+
+    protected InputStream getConfiguration( String subname )
+            throws Exception
+    {
+        return getResourceAsStream( getConfigurationName( subname ) );
+    }
+
+    protected String getCustomConfigurationName()
+    {
+        return null;
+    }
+
+    /**
+     * Allow the retrieval of a container configuration that is based on the name
+     * of the test class being run. So if you have a test class called org.foo.FunTest, then
+     * this will produce a resource name of org/foo/FunTest.xml which would be used to
+     * configure the Plexus container before running your test.
+     *
+     * @param subname the subname
+     * @return A configruation name
+     */
+    protected String getConfigurationName( String subname )
+    {
+        return getClass().getName().replace( '.', '/' ) + ".xml";
+    }
+
+    protected InputStream getResourceAsStream( String resource )
+    {
+        return getClass().getResourceAsStream( resource );
+    }
+
+    protected ClassLoader getClassLoader()
+    {
+        return getClass().getClassLoader();
+    }
+
+    // ----------------------------------------------------------------------
+    // Container access
+    // ----------------------------------------------------------------------
+
+    @SuppressWarnings( "unchecked" )
+    protected <T> T lookup( String componentKey )
+            throws ComponentLookupException
+    {
+        return (T) getContainer().lookup( componentKey );
+    }
+
+    @SuppressWarnings( "unchecked" )
+    protected <T> T lookup( String role,
+                            String roleHint )
+            throws ComponentLookupException
+    {
+        return (T) getContainer().lookup( role, roleHint );
+    }
+
+    protected <T> T lookup( Class<T> componentClass )
+            throws ComponentLookupException
+    {
+        return getContainer().lookup( componentClass );
+    }
+
+    protected <T> T lookup( Class<T> componentClass, String roleHint )
+            throws ComponentLookupException
+    {
+        return getContainer().lookup( componentClass, roleHint );
+    }
+
+    protected void release( Object component )
+            throws ComponentLifecycleException
+    {
+        getContainer().release( component );
+    }
+
+    // ----------------------------------------------------------------------
+    // Helper methods for sub classes
+    // ----------------------------------------------------------------------
+
+    public static File getTestFile( String path )
+    {
+        return new File( getBasedir(), path );
+    }
+
+    public static File getTestFile( String basedir,
+                                    String path )
+    {
+        File basedirFile = new File( basedir );
+
+        if ( !basedirFile.isAbsolute() )
+        {
+            basedirFile = getTestFile( basedir );
+        }
+
+        return new File( basedirFile, path );
+    }
+
+    public static String getTestPath( String path )
+    {
+        return getTestFile( path ).getAbsolutePath();
+    }
+
+    public static String getTestPath( String basedir,
+                                      String path )
+    {
+        return getTestFile( basedir, path ).getAbsolutePath();
+    }
+
+    public static String getBasedir()
+    {
+        if ( basedir != null )
+        {
+            return basedir;
+        }
+
+        basedir = System.getProperty( "basedir" );
+
+        if ( basedir == null )
+        {
+            basedir = new File( "" ).getAbsolutePath();
+        }
+
+        return basedir;
+    }
+
+    public String getTestConfiguration()
+    {
+        return getTestConfiguration( getClass() );
+    }
+
+    public static String getTestConfiguration( Class<?> clazz )
+    {
+        String s = clazz.getName().replace( '.', '/' );
+
+        return s.substring( 0, s.indexOf( "$" ) ) + ".xml";
+    }
+}
diff --git a/maven-test-support/src/main/java/org/apache/maven/test/Test.java b/maven-test-support/src/main/java/org/apache/maven/test/Test.java
new file mode 100644
index 0000000000..5b542b6638
--- /dev/null
+++ b/maven-test-support/src/main/java/org/apache/maven/test/Test.java
@@ -0,0 +1,34 @@
+package org.apache.maven.test;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+import org.junit.jupiter.api.TestTemplate;
+
+/**
+ * Test
+ */
+@Retention( RetentionPolicy.RUNTIME )
+@TestTemplate
+public @interface Test
+{
+}
diff --git a/maven-wrapper/src/test/java/org/apache/maven/wrapper/DownloaderTest.java b/maven-wrapper/src/test/java/org/apache/maven/wrapper/DownloaderTest.java
index 68bc5c61f1..c0e84c7b72 100644
--- a/maven-wrapper/src/test/java/org/apache/maven/wrapper/DownloaderTest.java
+++ b/maven-wrapper/src/test/java/org/apache/maven/wrapper/DownloaderTest.java
@@ -19,7 +19,7 @@ package org.apache.maven.wrapper;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.net.URI;
 import java.nio.file.Files;
@@ -27,15 +27,14 @@ import java.nio.file.Path;
 import java.util.Arrays;
 import java.util.stream.Collectors;
 
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
 
 public class DownloaderTest
 {
-    @Rule
-    public TemporaryFolder testDir = new TemporaryFolder();
+    @TempDir
+    public Path testDir;
 
     private DefaultDownloader download;
 
@@ -47,14 +46,14 @@ public class DownloaderTest
 
     private Path remoteFile;
 
-    @Before
+    @BeforeEach
     public void setUp()
         throws Exception
     {
         download = new DefaultDownloader( "mvnw", "aVersion" );
-        rootDir = testDir.newFolder( "root" ).toPath();
+        rootDir = testDir.resolve( "root" );
         downloadFile = rootDir.resolve( "file" );
-        remoteFile = testDir.newFile( "remoteFile" ).toPath();
+        remoteFile = testDir.resolve( "remoteFile" );
         Files.write( remoteFile, Arrays.asList( "sometext" ) );
         sourceRoot = remoteFile.toUri();
     }
diff --git a/maven-wrapper/src/test/java/org/apache/maven/wrapper/InstallerTest.java b/maven-wrapper/src/test/java/org/apache/maven/wrapper/InstallerTest.java
index 3ff712a429..bef2057587 100644
--- a/maven-wrapper/src/test/java/org/apache/maven/wrapper/InstallerTest.java
+++ b/maven-wrapper/src/test/java/org/apache/maven/wrapper/InstallerTest.java
@@ -31,18 +31,18 @@ import java.util.Arrays;
 import org.apache.tools.ant.Project;
 import org.apache.tools.ant.taskdefs.Zip;
 import org.junit.Assert;
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
 
 /**
  * @author Hans Dockter
  */
 public class InstallerTest
 {
-    @Rule
-    public TemporaryFolder temporaryFolder = new TemporaryFolder();
+    @TempDir
+    public Path temporaryFolder;
 
     private Installer install;
 
@@ -62,7 +62,7 @@ public class InstallerTest
 
     private PathAssembler.LocalDistribution localDistribution;
 
-    @Before
+    @BeforeEach
     public void setup()
         throws Exception
     {
@@ -73,9 +73,11 @@ public class InstallerTest
         configuration.setDistribution( new URI( "http://server/maven-0.9.zip" ) );
         configuration.setAlwaysDownload( false );
         configuration.setAlwaysUnpack( false );
-        distributionDir = temporaryFolder.newFolder( "someDistPath" ).toPath();
+        distributionDir = temporaryFolder.resolve( "someDistPath" );
+        Files.createDirectories( distributionDir );
         mavenHomeDir = distributionDir.resolve( "maven-0.9" );
-        zipStore = temporaryFolder.newFolder( "zips" ).toPath();
+        zipStore = temporaryFolder.resolve( "zips" );
+        Files.createDirectories( zipStore );
         zipDestination = zipStore.resolve( "maven-0.9.zip" );
 
         download = mock( Downloader.class );
@@ -94,7 +96,7 @@ public class InstallerTest
     {
         Files.createDirectories( zipDestination.getParent() );
 
-        Path explodedZipDir = temporaryFolder.newFolder( "explodedZip" ).toPath();
+        Path explodedZipDir = temporaryFolder.resolve( "explodedZip" );
 
         Path mavenScript = explodedZipDir.resolve( "maven-0.9/bin/mvn" );
         Files.createDirectories( mavenScript.getParent() );
@@ -103,6 +105,8 @@ public class InstallerTest
         zipTo( explodedZipDir, zipDestination );
     }
 
+    @Test
+    @Disabled("not working")
     public void testCreateDist()
         throws Exception
     {
diff --git a/maven-wrapper/src/test/java/org/apache/maven/wrapper/PathAssemblerTest.java b/maven-wrapper/src/test/java/org/apache/maven/wrapper/PathAssemblerTest.java
index 9e22be0ea6..a2334c1397 100644
--- a/maven-wrapper/src/test/java/org/apache/maven/wrapper/PathAssemblerTest.java
+++ b/maven-wrapper/src/test/java/org/apache/maven/wrapper/PathAssemblerTest.java
@@ -22,20 +22,15 @@ package org.apache.maven.wrapper;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.is;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
-import java.io.File;
 import java.net.URI;
 import java.nio.file.Path;
 import java.nio.file.Paths;
-import java.util.regex.Pattern;
 
-import org.hamcrest.BaseMatcher;
-import org.hamcrest.Description;
-import org.hamcrest.Matcher;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author Hans Dockter
@@ -48,7 +43,7 @@ public class PathAssemblerTest
 
     final WrapperConfiguration configuration = new WrapperConfiguration();
 
-    @Before
+    @BeforeEach
     public void setup()
     {
         configuration.setDistributionBase( PathAssembler.MAVEN_USER_HOME_STRING );
diff --git a/maven-wrapper/src/test/java/org/apache/maven/wrapper/WrapperExecutorTest.java b/maven-wrapper/src/test/java/org/apache/maven/wrapper/WrapperExecutorTest.java
index b160be0352..23bcf21e43 100644
--- a/maven-wrapper/src/test/java/org/apache/maven/wrapper/WrapperExecutorTest.java
+++ b/maven-wrapper/src/test/java/org/apache/maven/wrapper/WrapperExecutorTest.java
@@ -19,6 +19,11 @@ package org.apache.maven.wrapper;
  * under the License.
  */
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
@@ -30,17 +35,15 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Properties;
 
-import org.junit.Assert;
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
 import org.mockito.Mockito;
 
 public class WrapperExecutorTest
 {
-    @Rule
-    public TemporaryFolder testDir = new TemporaryFolder();
+    @TempDir
+    public Path testDir;
 
     private Installer install;
 
@@ -52,17 +55,17 @@ public class WrapperExecutorTest
 
     private Path mockInstallDir;
 
-    @Before
+    @BeforeEach
     public void setUp()
         throws Exception
     {
-        mockInstallDir = testDir.newFolder( "mock-dir" ).toPath();
+        mockInstallDir = testDir.resolve( "mock-dir" );
 
         install = mock( Installer.class );
         when( install.createDist( Mockito.any( WrapperConfiguration.class ) ) ).thenReturn( mockInstallDir );
         start = mock( BootstrapMainStarter.class );
 
-        propertiesFile = testDir.newFolder( "maven", "wrapper" ).toPath().resolve( "maven-wrapper.properties" );
+        propertiesFile = testDir.resolve( "maven" ).resolve( "wrapper" ).resolve( "maven-wrapper.properties" );
 
         properties.put( "distributionUrl", "http://server/test/maven.zip" );
         properties.put( "distributionBase", "testDistBase" );
@@ -79,40 +82,40 @@ public class WrapperExecutorTest
     {
         WrapperExecutor wrapper = WrapperExecutor.forWrapperPropertiesFile( propertiesFile );
 
-        Assert.assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getDistribution() );
-        Assert.assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getConfiguration().getDistribution() );
-        Assert.assertEquals( "testDistBase", wrapper.getConfiguration().getDistributionBase() );
-        Assert.assertEquals( "testDistPath", wrapper.getConfiguration().getDistributionPath() );
-        Assert.assertEquals( "testZipBase", wrapper.getConfiguration().getZipBase() );
-        Assert.assertEquals( "testZipPath", wrapper.getConfiguration().getZipPath() );
+        assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getDistribution() );
+        assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getConfiguration().getDistribution() );
+        assertEquals( "testDistBase", wrapper.getConfiguration().getDistributionBase() );
+        assertEquals( "testDistPath", wrapper.getConfiguration().getDistributionPath() );
+        assertEquals( "testZipBase", wrapper.getConfiguration().getZipBase() );
+        assertEquals( "testZipPath", wrapper.getConfiguration().getZipPath() );
     }
 
     @Test
     public void loadWrapperMetadataFromDirectory()
         throws Exception
     {
-        WrapperExecutor wrapper = WrapperExecutor.forProjectDirectory( testDir.getRoot().toPath() );
+        WrapperExecutor wrapper = WrapperExecutor.forProjectDirectory( testDir );
 
-        Assert.assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getDistribution() );
-        Assert.assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getConfiguration().getDistribution() );
-        Assert.assertEquals( "testDistBase", wrapper.getConfiguration().getDistributionBase() );
-        Assert.assertEquals( "testDistPath", wrapper.getConfiguration().getDistributionPath() );
-        Assert.assertEquals( "testZipBase", wrapper.getConfiguration().getZipBase() );
-        Assert.assertEquals( "testZipPath", wrapper.getConfiguration().getZipPath() );
+        assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getDistribution() );
+        assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getConfiguration().getDistribution() );
+        assertEquals( "testDistBase", wrapper.getConfiguration().getDistributionBase() );
+        assertEquals( "testDistPath", wrapper.getConfiguration().getDistributionPath() );
+        assertEquals( "testZipBase", wrapper.getConfiguration().getZipBase() );
+        assertEquals( "testZipPath", wrapper.getConfiguration().getZipPath() );
     }
 
     @Test
     public void useDefaultMetadataNoProeprtiesFile()
         throws Exception
     {
-        WrapperExecutor wrapper = WrapperExecutor.forProjectDirectory( testDir.getRoot().toPath().resolve( "unknown" ) );
+        WrapperExecutor wrapper = WrapperExecutor.forProjectDirectory( testDir.resolve( "unknown" ) );
 
-        Assert.assertNull( wrapper.getDistribution() );
-        Assert.assertNull( wrapper.getConfiguration().getDistribution() );
-        Assert.assertEquals( PathAssembler.MAVEN_USER_HOME_STRING, wrapper.getConfiguration().getDistributionBase() );
-        Assert.assertEquals( Installer.DEFAULT_DISTRIBUTION_PATH, wrapper.getConfiguration().getDistributionPath() );
-        Assert.assertEquals( PathAssembler.MAVEN_USER_HOME_STRING, wrapper.getConfiguration().getZipBase() );
-        Assert.assertEquals( Installer.DEFAULT_DISTRIBUTION_PATH, wrapper.getConfiguration().getZipPath() );
+        assertNull( wrapper.getDistribution() );
+        assertNull( wrapper.getConfiguration().getDistribution() );
+        assertEquals( PathAssembler.MAVEN_USER_HOME_STRING, wrapper.getConfiguration().getDistributionBase() );
+        assertEquals( Installer.DEFAULT_DISTRIBUTION_PATH, wrapper.getConfiguration().getDistributionPath() );
+        assertEquals( PathAssembler.MAVEN_USER_HOME_STRING, wrapper.getConfiguration().getZipBase() );
+        assertEquals( Installer.DEFAULT_DISTRIBUTION_PATH, wrapper.getConfiguration().getZipPath() );
     }
 
     @Test
@@ -126,12 +129,12 @@ public class WrapperExecutorTest
 
         WrapperExecutor wrapper = WrapperExecutor.forWrapperPropertiesFile( propertiesFile );
 
-        Assert.assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getDistribution() );
-        Assert.assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getConfiguration().getDistribution() );
-        Assert.assertEquals( PathAssembler.MAVEN_USER_HOME_STRING, wrapper.getConfiguration().getDistributionBase() );
-        Assert.assertEquals( Installer.DEFAULT_DISTRIBUTION_PATH, wrapper.getConfiguration().getDistributionPath() );
-        Assert.assertEquals( PathAssembler.MAVEN_USER_HOME_STRING, wrapper.getConfiguration().getZipBase() );
-        Assert.assertEquals( Installer.DEFAULT_DISTRIBUTION_PATH, wrapper.getConfiguration().getZipPath() );
+        assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getDistribution() );
+        assertEquals( new URI( "http://server/test/maven.zip" ), wrapper.getConfiguration().getDistribution() );
+        assertEquals( PathAssembler.MAVEN_USER_HOME_STRING, wrapper.getConfiguration().getDistributionBase() );
+        assertEquals( Installer.DEFAULT_DISTRIBUTION_PATH, wrapper.getConfiguration().getDistributionPath() );
+        assertEquals( PathAssembler.MAVEN_USER_HOME_STRING, wrapper.getConfiguration().getZipBase() );
+        assertEquals( Installer.DEFAULT_DISTRIBUTION_PATH, wrapper.getConfiguration().getZipPath() );
     }
 
     @Test
@@ -152,32 +155,24 @@ public class WrapperExecutorTest
         properties = new Properties();
         writePropertiesFile( properties, propertiesFile, "header" );
 
-        try
-        {
-            WrapperExecutor.forWrapperPropertiesFile( propertiesFile );
-            Assert.fail( "Expected RuntimeException" );
-        }
-        catch ( RuntimeException e )
-        {
-            Assert.assertEquals( "No value with key 'distributionUrl' specified in wrapper properties file '"
-                + propertiesFile + "'.", e.getMessage() );
-        }
+        RuntimeException e = assertThrows(
+                RuntimeException.class,
+                () -> WrapperExecutor.forWrapperPropertiesFile( propertiesFile ),
+                "Expected RuntimeException" );
+        assertEquals( "No value with key 'distributionUrl' specified in wrapper properties file '"
+            + propertiesFile + "'.", e.getMessage() );
     }
 
     @Test
     public void failWhenPropertiesFileDoesNotExist()
     {
-        propertiesFile = testDir.getRoot().toPath().resolve( "unknown.properties" );
+        propertiesFile = testDir.resolve( "unknown.properties" );
 
-        try
-        {
-            WrapperExecutor.forWrapperPropertiesFile( propertiesFile );
-            Assert.fail( "Expected RuntimeException" );
-        }
-        catch ( RuntimeException e )
-        {
-            Assert.assertEquals( "Wrapper properties file '" + propertiesFile + "' does not exist.", e.getMessage() );
-        }
+        RuntimeException e = assertThrows(
+                RuntimeException.class,
+                () -> WrapperExecutor.forWrapperPropertiesFile( propertiesFile ),
+                "Expected RuntimeException" );
+        assertEquals( "Wrapper properties file '" + propertiesFile + "' does not exist.", e.getMessage() );
     }
 
     @Test
@@ -190,8 +185,8 @@ public class WrapperExecutorTest
         writePropertiesFile( properties, propertiesFile, "header" );
 
         WrapperExecutor wrapper = WrapperExecutor.forWrapperPropertiesFile( propertiesFile );
-        Assert.assertNotEquals( "some/relative/url/to/bin.zip", wrapper.getDistribution().getSchemeSpecificPart() );
-        Assert.assertTrue( wrapper.getDistribution().getSchemeSpecificPart().endsWith( "some/relative/url/to/bin.zip" ) );
+        assertNotEquals( "some/relative/url/to/bin.zip", wrapper.getDistribution().getSchemeSpecificPart() );
+        assertTrue( wrapper.getDistribution().getSchemeSpecificPart().endsWith( "some/relative/url/to/bin.zip" ) );
     }
 
     private void writePropertiesFile( Properties properties, Path propertiesFile, String message )
diff --git a/maven-xml/pom.xml b/maven-xml/pom.xml
index 7995e98548..600c2b9cf4 100644
--- a/maven-xml/pom.xml
+++ b/maven-xml/pom.xml
@@ -32,6 +32,11 @@ under the License.
   <name>Maven XML</name>
 
   <dependencies>
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-test-support</artifactId>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.xmlunit</groupId>
       <artifactId>xmlunit-assertj</artifactId>
diff --git a/maven-xml/src/test/java/org/apache/maven/xml/sax/ChainedFilterTest.java b/maven-xml/src/test/java/org/apache/maven/xml/sax/ChainedFilterTest.java
index 47ac4562a1..e9b10c9ba6 100644
--- a/maven-xml/src/test/java/org/apache/maven/xml/sax/ChainedFilterTest.java
+++ b/maven-xml/src/test/java/org/apache/maven/xml/sax/ChainedFilterTest.java
@@ -34,7 +34,7 @@ import javax.xml.transform.stream.StreamResult;
 
 import org.apache.maven.xml.Factories;
 import org.apache.maven.xml.sax.filter.AbstractSAXFilter;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.xml.sax.InputSource;
 import org.xml.sax.SAXException;
 
diff --git a/maven-xml/src/test/java/org/apache/maven/xml/sax/SAXEventUtilsTest.java b/maven-xml/src/test/java/org/apache/maven/xml/sax/SAXEventUtilsTest.java
index 02e55dc599..048ee845f8 100644
--- a/maven-xml/src/test/java/org/apache/maven/xml/sax/SAXEventUtilsTest.java
+++ b/maven-xml/src/test/java/org/apache/maven/xml/sax/SAXEventUtilsTest.java
@@ -19,13 +19,10 @@ package org.apache.maven.xml.sax;
  * under the License.
  */
 
-import static org.junit.Assert.assertThat;
-
-import org.apache.maven.xml.sax.SAXEventUtils;
-
+import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.CoreMatchers.is;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class SAXEventUtilsTest
 {
diff --git a/maven-xml/src/test/java/org/apache/maven/xml/sax/ext/CommentRenormalizerTest.java b/maven-xml/src/test/java/org/apache/maven/xml/sax/ext/CommentRenormalizerTest.java
index c1885e216b..dad847e129 100644
--- a/maven-xml/src/test/java/org/apache/maven/xml/sax/ext/CommentRenormalizerTest.java
+++ b/maven-xml/src/test/java/org/apache/maven/xml/sax/ext/CommentRenormalizerTest.java
@@ -25,18 +25,19 @@ import static org.mockito.Mockito.verify;
 import java.util.Arrays;
 import java.util.Collection;
 
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.junit.runners.Parameterized;
-import org.junit.runners.Parameterized.Parameters;
+import org.apache.maven.test.Parameter;
+import org.apache.maven.test.Parameterized;
+import org.apache.maven.test.Parameters;
+import org.apache.maven.test.Test;
 import org.xml.sax.ext.LexicalHandler;
 
-@RunWith( Parameterized.class )
+@Parameterized
 public class CommentRenormalizerTest
 {
-    private LexicalHandler lexicalHandler;
+    private LexicalHandler lexicalHandler = mock( LexicalHandler.class );
 
-    private final String lineSeparator;
+    @Parameter
+    private String lineSeparator;
 
     @Parameters
     public static Collection<Object[]> data() {
@@ -47,12 +48,6 @@ public class CommentRenormalizerTest
            });
     }
 
-    public CommentRenormalizerTest( String lineSeparator )
-    {
-        this.lineSeparator = lineSeparator;
-        this.lexicalHandler = mock( LexicalHandler.class );
-    }
-
     @Test
     public void singleLine()
         throws Exception
diff --git a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/CiFriendlyXMLFilterTest.java b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/CiFriendlyXMLFilterTest.java
index e51b76db35..d83617e41d 100644
--- a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/CiFriendlyXMLFilterTest.java
+++ b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/CiFriendlyXMLFilterTest.java
@@ -19,20 +19,21 @@ package org.apache.maven.xml.sax.filter;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.transform.TransformerException;
 
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.BeforeEach;
+
 import org.xml.sax.SAXException;
 
 public class CiFriendlyXMLFilterTest extends AbstractXMLFilterTests
 {
     private CiFriendlyXMLFilter filter;
 
-    @Before
+    @BeforeEach
     public void setUp()
     {
         filter = new CiFriendlyXMLFilter( true );
diff --git a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ConsumerPomXMLFilterTest.java b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ConsumerPomXMLFilterTest.java
index 300246ae66..df81175ce0 100644
--- a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ConsumerPomXMLFilterTest.java
+++ b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ConsumerPomXMLFilterTest.java
@@ -31,7 +31,7 @@ import java.util.function.Function;
 import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.transform.TransformerConfigurationException;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.xml.sax.SAXException;
 import org.xml.sax.ext.LexicalHandler;
 
diff --git a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ModulesXMLFilterTest.java b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ModulesXMLFilterTest.java
index fac2b79fe9..301e316427 100644
--- a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ModulesXMLFilterTest.java
+++ b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ModulesXMLFilterTest.java
@@ -23,7 +23,7 @@ import static org.xmlunit.assertj.XmlAssert.assertThat;
 
 import java.util.function.Consumer;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.xml.sax.ext.LexicalHandler;
 
 public class ModulesXMLFilterTest extends AbstractXMLFilterTests {
diff --git a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ParentXMLFilterTest.java b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ParentXMLFilterTest.java
index 809aef5e08..222e11fb40 100644
--- a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ParentXMLFilterTest.java
+++ b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ParentXMLFilterTest.java
@@ -19,7 +19,7 @@ package org.apache.maven.xml.sax.filter;
  * under the License.
  */
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.nio.file.Paths;
 import java.util.Optional;
@@ -28,7 +28,7 @@ import java.util.function.Consumer;
 import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.transform.TransformerException;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.xml.sax.SAXException;
 import org.xml.sax.ext.LexicalHandler;
 
diff --git a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ReactorDependencyXMLFilterTest.java b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ReactorDependencyXMLFilterTest.java
index 21a1742699..d9385033cf 100644
--- a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ReactorDependencyXMLFilterTest.java
+++ b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/ReactorDependencyXMLFilterTest.java
@@ -25,7 +25,7 @@ import java.util.function.Consumer;
 import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.transform.TransformerException;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.xml.sax.SAXException;
 import org.xml.sax.ext.LexicalHandler;
 
diff --git a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/RelativePathXMLFilterTest.java b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/RelativePathXMLFilterTest.java
index 51ee41d215..16282667f3 100644
--- a/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/RelativePathXMLFilterTest.java
+++ b/maven-xml/src/test/java/org/apache/maven/xml/sax/filter/RelativePathXMLFilterTest.java
@@ -21,8 +21,7 @@ package org.apache.maven.xml.sax.filter;
 
 import static org.xmlunit.assertj.XmlAssert.assertThat;
 
-import org.apache.maven.xml.sax.filter.RelativePathXMLFilter;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class RelativePathXMLFilterTest extends AbstractXMLFilterTests
 {
diff --git a/pom.xml b/pom.xml
index 23f976f2a9..07aa46add8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -52,7 +52,7 @@ under the License.
     <classWorldsVersion>2.6.0</classWorldsVersion>
     <commonsCliVersion>1.4</commonsCliVersion>
     <commonsLangVersion>3.8.1</commonsLangVersion>
-    <junitVersion>4.13.1</junitVersion>
+    <junitVersion>5.7.0</junitVersion>
     <mockitoVersion>3.2.0</mockitoVersion>
     <plexusVersion>2.1.0</plexusVersion>
     <plexusInterpolationVersion>1.26</plexusInterpolationVersion>
@@ -80,6 +80,7 @@ under the License.
   </properties>
 
   <modules>
+    <module>maven-test-support</module>
     <module>maven-plugin-api</module>
     <module>maven-builder-support</module>
     <module>maven-model</module>
@@ -181,6 +182,11 @@ under the License.
     <dependencies>
       <!--  Maven Modules -->
       <!--bootstrap-start-comment-->
+      <dependency>
+        <groupId>org.apache.maven</groupId>
+        <artifactId>maven-test-support</artifactId>
+        <version>${project.version}</version>
+      </dependency>
       <dependency>
         <groupId>org.apache.maven</groupId>
         <artifactId>maven-model</artifactId>
@@ -468,11 +474,16 @@ under the License.
   <!--bootstrap-start-comment-->
   <dependencies>
     <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
       <version>${junitVersion}</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.hamcrest</groupId>
+      <artifactId>hamcrest-core</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
   <!--bootstrap-end-comment-->