--- a/jdk/src/share/classes/java/util/concurrent/PriorityBlockingQueue.java	Fri Dec 09 12:56:22 2011 -0800
+++ b/jdk/src/share/classes/java/util/concurrent/PriorityBlockingQueue.java	Mon Dec 12 10:45:54 2011 +0000
@@ -94,6 +94,7 @@
  * @author Doug Lea
  * @param <E> the type of elements held in this collection
  */
+@SuppressWarnings("unchecked")
 public class PriorityBlockingQueue<E> extends AbstractQueue<E>
     implements BlockingQueue<E>, java.io.Serializable {
     private static final long serialVersionUID = 5595510919245408276L;
@@ -168,7 +169,7 @@
      * to maintain compatibility with previous versions
      * of this class. Non-null only during serialization/deserialization.
      */
-    private PriorityQueue q;
+    private PriorityQueue<E> q;
 
     /**
      * Creates a {@code PriorityBlockingQueue} with the default
@@ -968,7 +969,7 @@
     static {
         try {
             UNSAFE = sun.misc.Unsafe.getUnsafe();
-            Class k = PriorityBlockingQueue.class;
+            Class<?> k = PriorityBlockingQueue.class;
             allocationSpinLockOffset = UNSAFE.objectFieldOffset
                 (k.getDeclaredField("allocationSpinLock"));
         } catch (Exception e) {