--- a/jdk/src/share/classes/java/io/ObjectOutputStream.java	Sat Dec 18 09:10:49 2010 -0800
+++ b/jdk/src/share/classes/java/io/ObjectOutputStream.java	Mon Dec 20 13:47:04 2010 -0800
@@ -165,11 +165,11 @@
     private static class Caches {
         /** cache of subclass security audit results */
         static final ConcurrentMap<WeakClassKey,Boolean> subclassAudits =
-            new ConcurrentHashMap<WeakClassKey,Boolean>();
+            new ConcurrentHashMap<>();
 
         /** queue for WeakReferences to audited subclasses */
         static final ReferenceQueue<Class<?>> subclassAuditsQueue =
-            new ReferenceQueue<Class<?>>();
+            new ReferenceQueue<>();
     }
 
     /** filter stream for handling block data conversion */
@@ -2413,7 +2413,7 @@
         private final List<String> stack;
 
         DebugTraceInfoStack() {
-            stack = new ArrayList<String>();
+            stack = new ArrayList<>();
         }
 
         /**