[MNG-6847] Use diamond operator

Use this link to re-run the recipe: https://app.moderne.io/recipes/org.openrewrite.staticanalysis.UseDiamondOperator?organizationId=QXBhY2hlIE1hdmVu

Co-authored-by: Moderne <team@moderne.io>

src/main/java/org/apache/maven/plugins/assembly/io/DefaultAssemblyReader.java

@@ -155,13 +155,13 @@ public List<Assembly> readAssemblies(final AssemblerConfigurationSource configSo
     @Override
     public Assembly getAssemblyForDescriptorReference(final String ref, final AssemblerConfigurationSource configSource)
             throws AssemblyReadException, InvalidAssemblerConfigurationException {
-        return addAssemblyForDescriptorReference(ref, configSource, new ArrayList<Assembly>(1));
+        return addAssemblyForDescriptorReference(ref, configSource, new ArrayList<>(1));
     }
 
     @Override
     public Assembly getAssemblyFromDescriptorFile(final File file, final AssemblerConfigurationSource configSource)
             throws AssemblyReadException, InvalidAssemblerConfigurationException {
-        return addAssemblyFromDescriptorFile(file, configSource, new ArrayList<Assembly>(1));
+        return addAssemblyFromDescriptorFile(file, configSource, new ArrayList<>(1));
     }
 
     private Assembly addAssemblyForDescriptorReference(

src/main/java/org/apache/maven/plugins/assembly/io/DefaultMessageHolder.java

@@ -30,7 +30,7 @@
  */
 class DefaultMessageHolder implements MessageHolder {
 
-    private List<Message> messages = new ArrayList<Message>();
+    private List<Message> messages = new ArrayList<>();
 
     private Message currentMessage;
 

src/main/java/org/apache/maven/plugins/assembly/io/Locator.java

@@ -37,15 +37,15 @@ final class Locator {
      */
     Locator(List<LocatorStrategy> strategies, MessageHolder messageHolder) {
         this.messageHolder = messageHolder;
-        this.strategies = new ArrayList<LocatorStrategy>(strategies);
+        this.strategies = new ArrayList<>(strategies);
     }
 
     /**
      * Create instance.
      */
     Locator() {
         this.messageHolder = new DefaultMessageHolder();
-        this.strategies = new ArrayList<LocatorStrategy>();
+        this.strategies = new ArrayList<>();
     }
 
     /**

src/main/java/org/apache/maven/plugins/assembly/io/MessageLevels.java

@@ -56,7 +56,7 @@ final class MessageLevels {
     private static final List<String> LEVEL_NAMES;
 
     static {
-        List<String> names = new ArrayList<String>();
+        List<String> names = new ArrayList<>();
         names.add("DEBUG");
         names.add("INFO");
         names.add("WARN");

src/test/java/org/apache/maven/plugins/assembly/archive/phase/DependencySetAssemblyPhaseTest.java

@@ -87,7 +87,7 @@ public void testExecute_ShouldAddOneDependencyFromProject()
         project.setArtifacts(Collections.singleton(artifact));
 
         when(dependencyResolver.resolveDependencySets(eq(assembly), isNull(), anyList()))
-                .thenReturn(new LinkedHashMap<DependencySet, Set<Artifact>>());
+                .thenReturn(new LinkedHashMap<>());
 
         this.phase.execute(assembly, null, null);
 
@@ -102,7 +102,7 @@ public void testExecute_ShouldNotAddDependenciesWhenProjectHasNone() throws Exce
         assembly.setIncludeBaseDirectory(false);
 
         when(dependencyResolver.resolveDependencySets(eq(assembly), isNull(), anyList()))
-                .thenReturn(new LinkedHashMap<DependencySet, Set<Artifact>>());
+                .thenReturn(new LinkedHashMap<>());
 
         this.phase.execute(assembly, null, null);
 

src/test/java/org/apache/maven/plugins/assembly/archive/phase/ModuleSetAssemblyPhaseTest.java

@@ -284,7 +284,7 @@ public void testExecute_ShouldAddOneModuleSetWithOneModuleInIt() throws Exceptio
         assembly.addModuleSet(ms);
 
         when(dependencyResolver.resolveDependencySets(eq(assembly), eq(ms), eq(configSource), anyList()))
-                .thenReturn(new LinkedHashMap<DependencySet, Set<Artifact>>());
+                .thenReturn(new LinkedHashMap<>());
         DefaultAssemblyArchiverTest.setupInterpolators(configSource, module);
 
         this.phase.execute(assembly, archiver, configSource);
@@ -360,7 +360,7 @@ public void testAddModuleBinaries_ShouldAddOneModuleAttachmentArtifactAndNoDeps(
         final Set<MavenProject> projects = singleton(project);
 
         when(dependencyResolver.resolveDependencySets(isNull(), isNull(), eq(configSource), anyList()))
-                .thenReturn(new LinkedHashMap<DependencySet, Set<Artifact>>());
+                .thenReturn(new LinkedHashMap<>());
         DefaultAssemblyArchiverTest.setupInterpolators(configSource, project);
 
         this.phase.addModuleBinaries(null, null, binaries, projects, archiver, configSource);
@@ -442,7 +442,7 @@ public void testAddModuleBinaries_ShouldAddOneModuleArtifactAndNoDeps() throws E
 
         when(dependencyResolver.resolveDependencySets(
                         isNull(), isNull(), any(AssemblerConfigurationSource.class), anyList()))
-                .thenReturn(new LinkedHashMap<DependencySet, Set<Artifact>>());
+                .thenReturn(new LinkedHashMap<>());
         DefaultAssemblyArchiverTest.setupInterpolators(configSource, project);
 
         this.phase.addModuleBinaries(null, null, binaries, projects, archiver, configSource);

src/test/java/org/apache/maven/plugins/assembly/artifact/DefaultDependencyResolverTest.java

@@ -167,8 +167,8 @@ private MavenProject createMavenProject(
 
         final Artifact pomArtifact = newArtifact(groupId, artifactId, version);
         project.setArtifact(pomArtifact);
-        project.setArtifacts(new HashSet<Artifact>());
-        project.setDependencyArtifacts(new HashSet<Artifact>());
+        project.setArtifacts(new HashSet<>());
+        project.setDependencyArtifacts(new HashSet<>());
 
         project.setFile(new File(basedir, "pom.xml"));