diff --git a/jetty-util/src/test/java/org/eclipse/jetty/util/BufferUtilTest.java b/jetty-util/src/test/java/org/eclipse/jetty/util/BufferUtilTest.java
index 7c7a038dd4d..89a1f7e6470 100644
--- a/jetty-util/src/test/java/org/eclipse/jetty/util/BufferUtilTest.java
+++ b/jetty-util/src/test/java/org/eclipse/jetty/util/BufferUtilTest.java
@@ -19,6 +19,12 @@
 package org.eclipse.jetty.util;
 
 
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileWriter;
@@ -35,12 +41,6 @@ import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
 
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
-
 public class BufferUtilTest
 {
     @Test
@@ -346,7 +346,7 @@ public class BufferUtilTest
         String data="Now is the time for all good men to come to the aid of the party";
         File file = File.createTempFile("test",".txt");
         file.deleteOnExit();
-        try(FileWriter out = new FileWriter(file);)
+        try(FileWriter out = new FileWriter(file))
         {
             out.write(data);
         }
diff --git a/jetty-util/src/test/java/org/eclipse/jetty/util/RolloverFileOutputStreamTest.java b/jetty-util/src/test/java/org/eclipse/jetty/util/RolloverFileOutputStreamTest.java
index 9fa00057c4c..56947e9e3fb 100644
--- a/jetty-util/src/test/java/org/eclipse/jetty/util/RolloverFileOutputStreamTest.java
+++ b/jetty-util/src/test/java/org/eclipse/jetty/util/RolloverFileOutputStreamTest.java
@@ -37,7 +37,6 @@ import java.util.concurrent.TimeUnit;
 
 import org.eclipse.jetty.toolchain.test.FS;
 import org.eclipse.jetty.toolchain.test.MavenTestingUtils;
-import org.eclipse.jetty.util.resource.ResourceTest;
 import org.hamcrest.Matchers;
 import org.junit.Test;
 
@@ -182,9 +181,9 @@ public class RolloverFileOutputStreamTest
     }
     
     @Test
-    public void testFilehandling() throws Exception
+    public void testFileHandling() throws Exception
     {
-        File testDir = MavenTestingUtils.getTargetTestingDir(ResourceTest.class.getName());
+        File testDir = MavenTestingUtils.getTargetTestingDir(RolloverFileOutputStreamTest.class.getName() + "_testFileHandling");
         Path testPath = testDir.toPath();
         FS.ensureEmpty(testDir);
 
@@ -290,7 +289,7 @@ public class RolloverFileOutputStreamTest
     @Test
     public void testRollover() throws Exception
     {
-        File testDir = MavenTestingUtils.getTargetTestingDir(ResourceTest.class.getName());
+        File testDir = MavenTestingUtils.getTargetTestingDir(RolloverFileOutputStreamTest.class.getName() + "_testRollover");
         FS.ensureEmpty(testDir);
 
         ZoneId zone = toZoneId("Australia/Sydney");
diff --git a/jetty-util/src/test/java/org/eclipse/jetty/util/TypeUtilTest.java b/jetty-util/src/test/java/org/eclipse/jetty/util/TypeUtilTest.java
index 032cae7c313..d7085b9c77f 100644
--- a/jetty-util/src/test/java/org/eclipse/jetty/util/TypeUtilTest.java
+++ b/jetty-util/src/test/java/org/eclipse/jetty/util/TypeUtilTest.java
@@ -19,14 +19,16 @@
 package org.eclipse.jetty.util;
 
 
-import org.eclipse.jetty.toolchain.test.JDK;
-import org.hamcrest.Matchers;
-import org.junit.Assert;
-import org.junit.Test;
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.junit.Assert.assertThat;
 
 import java.nio.file.Path;
 import java.nio.file.Paths;
 
+import org.eclipse.jetty.toolchain.test.JDK;
+import org.junit.Assert;
+import org.junit.Test;
+
 public class TypeUtilTest
 {
     @Test
@@ -129,18 +131,19 @@ public class TypeUtilTest
     public void testGetLocationOfClass() throws Exception
     {
         Path mavenRepoPath = Paths.get( System.getProperty( "mavenRepoPath" ) );
-        String mavenRepo = mavenRepoPath.toFile().getPath();
+        String mavenRepo = mavenRepoPath.toFile().getPath().replaceAll("\\\\", "/");
+
         // Classes from maven dependencies
-        Assert.assertThat(TypeUtil.getLocationOfClass(Assert.class).toASCIIString(),Matchers.containsString(mavenRepo));
+        assertThat(TypeUtil.getLocationOfClass(Assert.class).toASCIIString(),containsString(mavenRepo));
         
         // Class from project dependencies
-        Assert.assertThat(TypeUtil.getLocationOfClass(TypeUtil.class).toASCIIString(),Matchers.containsString("/classes/"));
+        assertThat(TypeUtil.getLocationOfClass(TypeUtil.class).toASCIIString(),containsString("/classes/"));
         
         // Class from JVM core
         String expectedJavaBase = "/rt.jar";
         if(JDK.IS_9)
             expectedJavaBase = "/java.base/";
             
-        Assert.assertThat(TypeUtil.getLocationOfClass(String.class).toASCIIString(),Matchers.containsString(expectedJavaBase));
+        assertThat(TypeUtil.getLocationOfClass(String.class).toASCIIString(),containsString(expectedJavaBase));
     }
 }
diff --git a/jetty-util/src/test/java/org/eclipse/jetty/util/resource/FileSystemResourceTest.java b/jetty-util/src/test/java/org/eclipse/jetty/util/resource/FileSystemResourceTest.java
index f1e3e16316b..68b8d28266a 100644
--- a/jetty-util/src/test/java/org/eclipse/jetty/util/resource/FileSystemResourceTest.java
+++ b/jetty-util/src/test/java/org/eclipse/jetty/util/resource/FileSystemResourceTest.java
@@ -1404,13 +1404,12 @@ public class FileSystemResourceTest
         assumeTrue("Only windows supports UNC paths", OS.IS_WINDOWS);
         assumeFalse("FileResource does not support this test", _class.equals(FileResource.class));
         
-        try (Resource base = newResource(URI.create("file://127.0.0.1/path")))
+        try (Resource base = newResource(URI.create("file:////127.0.0.1/path")))
         {
             Resource resource = base.addPath("WEB-INF/");
             assertThat("getURI()", resource.getURI().toASCIIString(), containsString("path/WEB-INF/"));
-            assertThat("isAlias()", resource.isAlias(), is(true));
-            assertThat("getAlias()", resource.getAlias(), notNullValue());
-            assertThat("getAlias()", resource.getAlias().toASCIIString(), containsString("path/WEB-INF"));
+            assertThat("isAlias()", resource.isAlias(), is(false));
+            assertThat("getAlias()", resource.getAlias(), nullValue());
         }
     }
 }
diff --git a/jetty-util/src/test/java/org/eclipse/jetty/util/resource/ResourceTest.java b/jetty-util/src/test/java/org/eclipse/jetty/util/resource/ResourceTest.java
index 3937d97a248..f978024bf4d 100644
--- a/jetty-util/src/test/java/org/eclipse/jetty/util/resource/ResourceTest.java
+++ b/jetty-util/src/test/java/org/eclipse/jetty/util/resource/ResourceTest.java
@@ -196,8 +196,9 @@ public class ResourceTest
         
         File testDir = MavenTestingUtils.getTargetTestingDir(ResourceTest.class.getName());
         FS.ensureEmpty(testDir);
-        File tmpFile = File.createTempFile("test",null,testDir);
-        
+        File tmpFile = new File(testDir, "test.tmp");
+        FS.touch(tmpFile);
+
         cases.addCase(new Data(tmpFile.toString(),EXISTS,!DIR));
         
         // Some resource references.