Use Java 7 diamond operator where possible

Author: gaul

modernizer-maven-plugin/src/main/java/org/gaul/modernizer_maven_plugin/ModernizerMojo.java

@@ -176,7 +176,7 @@ public final class ModernizerMojo extends AbstractMojo {
      * java/lang/String.getBytes:(Ljava/lang/String;)[B.
      */
     @Parameter
-    protected Set<String> exclusions = new HashSet<String>();
+    protected Set<String> exclusions = new HashSet<>();
 
     /**
      * Violation patterns to disable. Each exclusion should be a
@@ -185,15 +185,15 @@ public final class ModernizerMojo extends AbstractMojo {
      * java/lang/.*
      */
     @Parameter
-    protected Set<String> exclusionPatterns = new HashSet<String>();
+    protected Set<String> exclusionPatterns = new HashSet<>();
 
     /**
      * Package prefixes to ignore, specified using &lt;ignorePackage&gt; child
      * elements. Specifying foo.bar subsequently ignores foo.bar.*,
      * foo.bar.baz.* and so on.
      */
     @Parameter
-    protected Set<String> ignorePackages = new HashSet<String>();
+    protected Set<String> ignorePackages = new HashSet<>();
 
     /**
      * Fully qualified class names (incl. package) to ignore by regular
@@ -203,7 +203,7 @@ public final class ModernizerMojo extends AbstractMojo {
      * ending in Immutable in all packages.
      */
     @Parameter
-    protected Set<String> ignoreClassNamePatterns = new HashSet<String>();
+    protected Set<String> ignoreClassNamePatterns = new HashSet<>();
 
     private Modernizer modernizer;
 
@@ -234,13 +234,13 @@ public void execute() throws MojoExecutionException {
             allViolations.putAll(parseViolations(violationsFilePath));
         }
 
-        Set<String> allExclusions = new HashSet<String>();
+        Set<String> allExclusions = new HashSet<>();
         allExclusions.addAll(exclusions);
         if (exclusionsFile != null) {
             allExclusions.addAll(readExclusionsFile(exclusionsFile));
         }
 
-        Set<Pattern> allExclusionPatterns = new HashSet<Pattern>();
+        Set<Pattern> allExclusionPatterns = new HashSet<>();
         for (String pattern : exclusionPatterns) {
             try {
                 allExclusionPatterns.add(Pattern.compile(pattern));
@@ -250,7 +250,7 @@ public void execute() throws MojoExecutionException {
             }
         }
 
-        Set<Pattern> allIgnoreFullClassNamePatterns = new HashSet<Pattern>();
+        Set<Pattern> allIgnoreFullClassNamePatterns = new HashSet<>();
         for (String pattern : ignoreClassNamePatterns) {
             try {
                 allIgnoreFullClassNamePatterns.add(Pattern.compile(pattern));
@@ -260,7 +260,7 @@ public void execute() throws MojoExecutionException {
             }
         }
 
-        Set<String> ignoreClassNames = new HashSet<String>();
+        Set<String> ignoreClassNames = new HashSet<>();
         try {
             ignoreClassNames.addAll(
                 SuppressModernizerAnnotationDetector.detect(

modernizer-maven-plugin/src/main/java/org/gaul/modernizer_maven_plugin/SuppressGeneratedAnnotationDetector.java

@@ -31,10 +31,8 @@
 import org.objectweb.asm.ClassVisitor;
 
 public final class SuppressGeneratedAnnotationDetector {
-    private final Set<String> annotatedClassNames =
-        new HashSet<String>();
-    private final Set<String> allClassNames =
-        new HashSet<String>();
+    private final Set<String> annotatedClassNames = new HashSet<>();
+    private final Set<String> allClassNames = new HashSet<>();
 
     private SuppressGeneratedAnnotationDetector() { }
 
@@ -46,8 +44,7 @@ public static Set<String> detect(Path path) throws IOException {
     }
 
     private Set<String> computeSuppressedClassNames() {
-        Set<String> suppressedClassNames =
-            new HashSet<String>(annotatedClassNames);
+        Set<String> suppressedClassNames = new HashSet<>(annotatedClassNames);
         for (String className : allClassNames) {
             if (suppressedClassNames.contains(className)) {
                 continue;

modernizer-maven-plugin/src/main/java/org/gaul/modernizer_maven_plugin/SuppressModernizerAnnotationDetector.java

@@ -36,10 +36,8 @@
 import org.objectweb.asm.TypePath;
 
 public final class SuppressModernizerAnnotationDetector {
-    private final Set<String> annotatedClassNames =
-        new HashSet<String>();
-    private final Set<String> allClassNames =
-        new HashSet<String>();
+    private final Set<String> annotatedClassNames = new HashSet<>();
+    private final Set<String> allClassNames = new HashSet<>();
 
     private SuppressModernizerAnnotationDetector() { }
 
@@ -62,8 +60,7 @@ static Set<String> detect(Class<?>... classes) throws IOException {
     }
 
     private Set<String> computeSuppressedClassNames() {
-        Set<String> suppressedClassNames =
-            new HashSet<String>(annotatedClassNames);
+        Set<String> suppressedClassNames = new HashSet<>(annotatedClassNames);
         for (String className : allClassNames) {
             if (suppressedClassNames.contains(className)) {
                 continue;