[MNG-6847] Use diamond operator (#288)

* [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>

* Restore core-it-suite/src/test/resources/mng-5581-lifecycle-mapping-delegate/extension/src/main/java/org/apache/maven/its/mng5581/lifecyclemappingdelegate/TestLifecycleMappingDelegate.java

---------

Co-authored-by: Moderne <team@moderne.io>
diff --git a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng0768OfflineModeTest.java b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng0768OfflineModeTest.java
index 339fd6d..4b6689b 100644
--- a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng0768OfflineModeTest.java
+++ b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng0768OfflineModeTest.java
@@ -60,7 +60,7 @@
     public void testitMNG768() throws Exception {
         File testDir = ResourceExtractor.simpleExtractResources(getClass(), "/mng-0768");
 
-        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<String>());
+        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<>());
 
         Handler repoHandler = new AbstractHandler() {
             public void handle(
diff --git a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4348NoUnnecessaryRepositoryAccessTest.java b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4348NoUnnecessaryRepositoryAccessTest.java
index 799e7c4..e3e655a 100644
--- a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4348NoUnnecessaryRepositoryAccessTest.java
+++ b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4348NoUnnecessaryRepositoryAccessTest.java
@@ -60,7 +60,7 @@
 
         Verifier verifier = newVerifier(testDir.getAbsolutePath());
 
-        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<String>());
+        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<>());
 
         Handler repoHandler = new AbstractHandler() {
             @Override
diff --git a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4500NoUpdateOfTimestampedSnapshotsTest.java b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4500NoUpdateOfTimestampedSnapshotsTest.java
index 4bb1ab0..ab0ad0c 100644
--- a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4500NoUpdateOfTimestampedSnapshotsTest.java
+++ b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4500NoUpdateOfTimestampedSnapshotsTest.java
@@ -62,7 +62,7 @@
         String pomUri = "/repo/org/apache/maven/its/mng4500/dep/0.1-SNAPSHOT/dep-0.1-20091219.230823-1.pom";
         String jarUri = "/repo/org/apache/maven/its/mng4500/dep/0.1-SNAPSHOT/dep-0.1-20091219.230823-1.jar";
 
-        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<String>());
+        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<>());
 
         AbstractHandler logHandler = new AbstractHandler() {
             @Override
diff --git a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4554PluginPrefixMappingUpdateTest.java b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4554PluginPrefixMappingUpdateTest.java
index dea98e6..fefed46 100644
--- a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4554PluginPrefixMappingUpdateTest.java
+++ b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4554PluginPrefixMappingUpdateTest.java
@@ -63,7 +63,7 @@
 
         String metadataUri = "/repo-1/org/apache/maven/its/mng4554/maven-metadata.xml";
 
-        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<String>());
+        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<>());
 
         AbstractHandler logHandler = new AbstractHandler() {
             @Override
@@ -142,7 +142,7 @@
 
         String metadataUri = "/repo-1/org/apache/maven/its/mng4554/maven-metadata.xml";
 
-        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<String>());
+        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<>());
 
         AbstractHandler logHandler = new AbstractHandler() {
             @Override
@@ -224,7 +224,7 @@
 
         String metadataUri = "/repo-it/org/apache/maven/its/mng4554/maven-metadata.xml";
 
-        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<String>());
+        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<>());
 
         AbstractHandler logHandler = new AbstractHandler() {
             @Override
diff --git a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4772PluginVersionResolutionDoesntTouchDisabledRepoTest.java b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4772PluginVersionResolutionDoesntTouchDisabledRepoTest.java
index 011a18b..aea30bd 100644
--- a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4772PluginVersionResolutionDoesntTouchDisabledRepoTest.java
+++ b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4772PluginVersionResolutionDoesntTouchDisabledRepoTest.java
@@ -59,7 +59,7 @@
     public void testit() throws Exception {
         File testDir = ResourceExtractor.simpleExtractResources(getClass(), "/mng-4772");
 
-        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<String>());
+        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<>());
 
         AbstractHandler logHandler = new AbstractHandler() {
             @Override
diff --git a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng5064SuppressSnapshotUpdatesTest.java b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng5064SuppressSnapshotUpdatesTest.java
index 8102015..697cee2 100644
--- a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng5064SuppressSnapshotUpdatesTest.java
+++ b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng5064SuppressSnapshotUpdatesTest.java
@@ -61,7 +61,7 @@
 
         String metadataUri = "org/apache/maven/its/mng5064/dep/0.1-SNAPSHOT/maven-metadata.xml";
 
-        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<String>());
+        final List<String> requestedUris = Collections.synchronizedList(new ArrayList<>());
 
         AbstractHandler logHandler = new AbstractHandler() {
             @Override
diff --git a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6057CheckReactorOrderTest.java b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6057CheckReactorOrderTest.java
index 5ba8a40..56e69d2 100644
--- a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6057CheckReactorOrderTest.java
+++ b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6057CheckReactorOrderTest.java
@@ -84,7 +84,7 @@
      * </pre>
      */
     private List<String> extractReactorBuildOrder(List<String> loadedLines) {
-        List<String> resultingLines = new LinkedList<String>();
+        List<String> resultingLines = new LinkedList<>();
         boolean start = false;
         for (String line : loadedLines) {
             if (start) {
diff --git a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6391PrintVersionTest.java b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6391PrintVersionTest.java
index 8bfac32..cd56d7b 100644
--- a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6391PrintVersionTest.java
+++ b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6391PrintVersionTest.java
@@ -144,7 +144,7 @@
      * </pre>
      */
     private List<String> extractReactorBuildOrder(List<String> loadedLines) {
-        List<String> resultingLines = new LinkedList<String>();
+        List<String> resultingLines = new LinkedList<>();
         boolean start = false;
         for (String line : loadedLines) {
             if (start) {
diff --git a/core-it-suite/src/test/resources/mng-3203/src/main/java/org/apache/maven/it/mng3203/App.java b/core-it-suite/src/test/resources/mng-3203/src/main/java/org/apache/maven/it/mng3203/App.java
index 569e063..73b7716 100644
--- a/core-it-suite/src/test/resources/mng-3203/src/main/java/org/apache/maven/it/mng3203/App.java
+++ b/core-it-suite/src/test/resources/mng-3203/src/main/java/org/apache/maven/it/mng3203/App.java
@@ -27,6 +27,6 @@
  */
 public class App {
     public static void main(String[] args) {
-        List<String> stuff = new ArrayList<String>();
+        List<String> stuff = new ArrayList<>();
     }
 }