--- a/jdk/src/java.base/share/classes/sun/util/PreHashedMap.java	Thu Apr 23 18:01:01 2015 +0800
+++ b/jdk/src/java.base/share/classes/sun/util/PreHashedMap.java	Thu Apr 23 09:32:35 2015 -0700
@@ -166,14 +166,14 @@
     }
 
     public Set<String> keySet() {
-        return new AbstractSet<String> () {
+        return new AbstractSet<> () {
 
             public int size() {
                 return size;
             }
 
             public Iterator<String> iterator() {
-                return new Iterator<String>() {
+                return new Iterator<>() {
                     private int i = -1;
                     Object[] a = null;
                     String cur = null;