[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>

core-it-suite/src/test/java/org/apache/maven/it/MavenITmng0768OfflineModeTest.java

@@ -60,7 +60,7 @@ public MavenITmng0768OfflineModeTest() {
     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(

core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4348NoUnnecessaryRepositoryAccessTest.java

@@ -60,7 +60,7 @@ public void testit() throws Exception {
 
         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

core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4500NoUpdateOfTimestampedSnapshotsTest.java

@@ -62,7 +62,7 @@ public void testit() throws Exception {
         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

core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4554PluginPrefixMappingUpdateTest.java

@@ -63,7 +63,7 @@ public void testitCached() throws Exception {
 
         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 @@ public void testitForcedUpdate() throws Exception {
 
         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 @@ public void testitRefetched() throws Exception {
 
         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

core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4772PluginVersionResolutionDoesntTouchDisabledRepoTest.java

@@ -59,7 +59,7 @@ public MavenITmng4772PluginVersionResolutionDoesntTouchDisabledRepoTest() {
     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

core-it-suite/src/test/java/org/apache/maven/it/MavenITmng5064SuppressSnapshotUpdatesTest.java

@@ -61,7 +61,7 @@ public void testit() throws Exception {
 
         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

core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6057CheckReactorOrderTest.java

@@ -84,7 +84,7 @@ public void testitReactorShouldResultInExpectedOrder() throws Exception {
      * </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) {

core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6391PrintVersionTest.java

@@ -144,7 +144,7 @@ public void testitShouldPrintVersionInAllLines() throws Exception {
      * </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) {

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<>();
     }
 }