Fix raw types for private variables

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/io/trunk@896991 13f79535-47bb-0310-9956-ffa450edef68

Author: sebbASF

src/java/org/apache/commons/io/comparator/CompositeFileComparator.java

@@ -44,19 +44,20 @@
  */
 public class CompositeFileComparator extends AbstractFileComparator implements Serializable {
 
-    private static final Comparator[] NO_COMPARATORS = {};
+    private static final Comparator<?>[] NO_COMPARATORS = {};
     private final Comparator<File>[] delegates;
 
     /**
      * Create a composite comparator for the set of delegate comparators.
      *
      * @param delegates The delegate file comparators
      */
+    @SuppressWarnings("unchecked") // casts 1 & 2 must be OK because types are already correct
     public CompositeFileComparator(Comparator<File>... delegates) {
         if (delegates == null) {
-            this.delegates = NO_COMPARATORS;
+            this.delegates = (Comparator<File>[]) NO_COMPARATORS;//1
         } else {
-            this.delegates = new Comparator[delegates.length];
+            this.delegates = (Comparator<File>[]) new Comparator<?>[delegates.length];//2
             System.arraycopy(delegates, 0, this.delegates, 0, delegates.length);
         }
     }
@@ -66,15 +67,16 @@ public CompositeFileComparator(Comparator<File>... delegates) {
      *
      * @param delegates The delegate file comparators
      */
+    @SuppressWarnings("unchecked") // casts 1 & 2 must be OK because types are already correct
     public CompositeFileComparator(Iterable<Comparator<File>> delegates) {
         if (delegates == null) {
-            this.delegates = NO_COMPARATORS;
+            this.delegates = (Comparator<File>[]) NO_COMPARATORS; //1
         } else {
             List<Comparator<File>> list = new ArrayList<Comparator<File>>();
             for (Comparator<File> comparator : delegates) {
                 list.add(comparator);
             }
-            this.delegates = list.toArray(new Comparator[list.size()]);
+            this.delegates = (Comparator<File>[]) list.toArray(new Comparator<?>[list.size()]); //2
         }
     }