diff -r 6a7de6dddc18 -r e3a1c90dd439 jdk/src/share/classes/com/sun/tools/jdi/TargetVM.java
--- a/jdk/src/share/classes/com/sun/tools/jdi/TargetVM.java	Thu Dec 08 14:57:13 2011 -0800
+++ b/jdk/src/share/classes/com/sun/tools/jdi/TargetVM.java	Fri Dec 09 12:56:22 2011 -0800
@@ -178,7 +178,7 @@
         // Closing a queue causes a VMDisconnectEvent to
         // be put onto the queue.
         synchronized(eventQueues) {
-            Iterator iter = eventQueues.iterator();
+            Iterator<EventQueue> iter = eventQueues.iterator();
             while (iter.hasNext()) {
                 ((EventQueueImpl)iter.next()).close();
             }
@@ -187,9 +187,9 @@
         // indirectly throw VMDisconnectedException to
         // command requesters.
         synchronized(waitingQueue) {
-            Iterator iter = waitingQueue.values().iterator();
+            Iterator<Packet> iter = waitingQueue.values().iterator();
             while (iter.hasNext()) {
-                Packet packet = (Packet)iter.next();
+                Packet packet = iter.next();
                 synchronized(packet) {
                     packet.notify();
                 }
@@ -252,7 +252,7 @@
     void notifyDequeueEventSet() {
         int maxQueueSize = 0;
         synchronized(eventQueues) {
-            Iterator iter = eventQueues.iterator();
+            Iterator<EventQueue> iter = eventQueues.iterator();
             while (iter.hasNext()) {
                 EventQueueImpl queue = (EventQueueImpl)iter.next();
                 maxQueueSize = Math.max(maxQueueSize, queue.size());
@@ -265,7 +265,7 @@
         int maxQueueSize = 0;
 
         synchronized(eventQueues) {
-            Iterator iter = eventQueues.iterator();
+            Iterator<EventQueue> iter = eventQueues.iterator();
             while (iter.hasNext()) {
                 EventQueueImpl queue = (EventQueueImpl)iter.next();
                 queue.enqueue(eventSet);