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 897862f8bc..2b8bc61431 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
@@ -176,7 +176,7 @@ class ArtifactResolverTest extends AbstractArtifactComponentTestCase {
     public void testReadRepoFromModel() throws Exception {
         Artifact m = createArtifact(TestMavenWorkspaceReader.ARTIFACT_ID, TestMavenWorkspaceReader.VERSION);
         ArtifactMetadataSource source = getContainer().lookup(ArtifactMetadataSource.class, "maven");
-        ResolutionGroup group = source.retrieve(m, localRepository(), new ArrayList<ArtifactRepository>());
+        ResolutionGroup group = source.retrieve(m, localRepository(), new ArrayList<>());
         List<ArtifactRepository> repositories = group.getResolutionRepositories();
         assertEquals(1, repositories.size(), "There should be one repository!");
         ArtifactRepository repository = repositories.get(0);
diff --git a/maven-embedder/src/main/java/org/eclipse/sisu/plexus/PlexusXmlBeanConverter.java b/maven-embedder/src/main/java/org/eclipse/sisu/plexus/PlexusXmlBeanConverter.java
index 709f0d0662..7ed8d31ca9 100644
--- a/maven-embedder/src/main/java/org/eclipse/sisu/plexus/PlexusXmlBeanConverter.java
+++ b/maven-embedder/src/main/java/org/eclipse/sisu/plexus/PlexusXmlBeanConverter.java
@@ -240,7 +240,7 @@ public final class PlexusXmlBeanConverter implements PlexusBeanConverter {
         final Object bean = newImplementation(clazz);
 
         // build map of all known bean properties belonging to the chosen implementation
-        final Map<String, BeanProperty<Object>> propertyMap = new HashMap<String, BeanProperty<Object>>();
+        final Map<String, BeanProperty<Object>> propertyMap = new HashMap<>();
         for (final BeanProperty<Object> property : new BeanProperties(clazz)) {
             final String name = property.getName();
             if (!propertyMap.containsKey(name)) {
diff --git a/maven-model/src/main/java/org/apache/maven/model/InputLocation.java b/maven-model/src/main/java/org/apache/maven/model/InputLocation.java
index a9b1a64d51..1b48e0463e 100644
--- a/maven-model/src/main/java/org/apache/maven/model/InputLocation.java
+++ b/maven-model/src/main/java/org/apache/maven/model/InputLocation.java
@@ -192,7 +192,7 @@ public final class InputLocation implements java.io.Serializable, Cloneable, Inp
     public void setOtherLocation(Object key, InputLocation location) {
         if (location != null) {
             if (this.locations == null) {
-                this.locations = new java.util.LinkedHashMap<Object, InputLocation>();
+                this.locations = new java.util.LinkedHashMap<>();
             }
             this.locations.put(key, location);
         }
@@ -277,7 +277,7 @@ public final class InputLocation implements java.io.Serializable, Cloneable, Inp
         } else if (targetLocations == null) {
             locations = sourceLocations;
         } else {
-            locations = new java.util.LinkedHashMap<Object, InputLocation>();
+            locations = new java.util.LinkedHashMap<>();
             for (java.util.Iterator<Integer> it = indices.iterator(); it.hasNext(); ) {
                 InputLocation location;
                 Integer index = it.next();