--- a/src/share/classes/com/sun/corba/se/impl/encoding/CDRInputStream.java	Fri Nov 04 11:44:48 2011 -0700
+++ b/src/share/classes/com/sun/corba/se/impl/encoding/CDRInputStream.java	Tue Nov 15 18:10:58 2011 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -423,6 +423,13 @@
         impl.setByteBufferWithInfo(bbwi);
     }
 
+    /**
+     * return true if our ByteBuffer is sharing/equal to bb
+     */
+    protected final boolean isSharing(ByteBuffer bb) {
+        return (getByteBuffer() ==  bb);
+    }
+
     public final int getBufferLength() {
         return impl.getBufferLength();
     }

--- a/src/share/classes/com/sun/corba/se/impl/encoding/CDRInputStream_1_0.java	Fri Nov 04 11:44:48 2011 -0700
+++ b/src/share/classes/com/sun/corba/se/impl/encoding/CDRInputStream_1_0.java	Tue Nov 15 18:10:58 2011 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2004, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -2412,7 +2412,6 @@
 
         if (bbwi != null && getByteBuffer() != null)
         {
-            int bbHash = System.identityHashCode(bbwi.byteBuffer);
             MessageMediator messageMediator = parent.getMessageMediator();
             if (messageMediator != null)
             {
@@ -2420,19 +2419,12 @@
                              (CDROutputObject)messageMediator.getOutputObject();
                 if (outputObj != null)
                 {
-                    ByteBuffer outputBb = outputObj.getByteBuffer();
-
-                    int oBbHash = 0;
-                    if (outputBb != null)
+                    if (outputObj.isSharing(getByteBuffer()))
                     {
-                        oBbHash = System.identityHashCode(outputBb);
-                        if (bbHash == oBbHash)  // shared?
-                        {
-                            // Set OutputStream's ByteBuffer and bbwi to null
-                            // so its ByteBuffer cannot be released to the pool
-                            outputObj.setByteBuffer(null);
-                            outputObj.setByteBufferWithInfo(null);
-                        }
+                        // Set OutputStream's ByteBuffer and bbwi to null
+                        // so its ByteBuffer cannot be released to the pool
+                        outputObj.setByteBuffer(null);
+                        outputObj.setByteBufferWithInfo(null);
                     }
                 }
             }

--- a/src/share/classes/com/sun/corba/se/impl/encoding/CDROutputStream.java	Fri Nov 04 11:44:48 2011 -0700
+++ b/src/share/classes/com/sun/corba/se/impl/encoding/CDROutputStream.java	Tue Nov 15 18:10:58 2011 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -357,6 +357,13 @@
         impl.setByteBuffer(byteBuffer);
     }
 
+    /**
+     * return true if our ByteBuffer is sharing/equal to bb
+     */
+    protected final boolean isSharing(ByteBuffer bb) {
+        return (getByteBuffer() ==  bb);
+    }
+
     public final boolean isLittleEndian() {
         return impl.isLittleEndian();
     }

--- a/src/share/classes/com/sun/corba/se/impl/encoding/CDROutputStream_1_0.java	Fri Nov 04 11:44:48 2011 -0700
+++ b/src/share/classes/com/sun/corba/se/impl/encoding/CDROutputStream_1_0.java	Tue Nov 15 18:10:58 2011 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2004, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -1902,7 +1902,6 @@
 
         if (getByteBufferWithInfo() != null && getByteBuffer() != null)
         {
-            int bbHash = System.identityHashCode(bbwi.byteBuffer);
             MessageMediator messageMediator = parent.getMessageMediator();
             if (messageMediator != null)
             {
@@ -1910,19 +1909,12 @@
                                (CDRInputObject)messageMediator.getInputObject();
                 if (inputObj != null)
                 {
-                    ByteBuffer inputBb = inputObj.getByteBuffer();
-
-                    int iBbHash = 0;
-                    if (inputBb != null)
+                    if (inputObj.isSharing(getByteBuffer()))
                     {
-                        iBbHash = System.identityHashCode(inputBb);
-                        if (bbHash == iBbHash)  // shared?
-                        {
-                            // Set InputStream's ByteBuffer and bbwi to null
-                            // so its ByteBuffer cannot be released to the pool
-                            inputObj.setByteBuffer(null);
-                            inputObj.setByteBufferWithInfo(null);
-                        }
+                        // Set InputStream's ByteBuffer and bbwi to null
+                        // so its ByteBuffer cannot be released to the pool
+                        inputObj.setByteBuffer(null);
+                        inputObj.setByteBufferWithInfo(null);
                     }
                 }
             }