*** old/agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdThread.java	Wed Mar 13 23:31:49 2013
--- new/agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdThread.java	Wed Mar 13 23:31:48 2013

*** 1,7 ****
--- 1,7 ----
  /*
!  * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 2002, 2013, 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
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.

*** 42,60 ****
--- 42,61 ----
          this.unique_thread_id = uniqueThreadIdAddr.getCIntegerAt(0, 8, true);
      }
  
      BsdThread(BsdDebugger debugger, long id) {
          this.debugger = debugger;
          this.thread_id = (int) id;
+         // use unique_thread_id to identify thread
+         this.unique_thread_id = id;
      }
  
      public boolean equals(Object obj) {
          if ((obj == null) || !(obj instanceof BsdThread)) {
              return false;
          }
  
!         return (((BsdThread) obj).unique_thread_id == unique_thread_id);
      }
  
      public int hashCode() {
          return thread_id;
      }

*** 78,83 ****
--- 79,89 ----
  
      public void setContext(ThreadContext context)
        throws IllegalThreadStateException, DebuggerException {
          throw new DebuggerException("Unimplemented");
      }
+ 
+     /** this is not interface function, used in core file to get unique thread id on Macosx*/
+     public long getUniqueThreadId() {
+         return unique_thread_id;
+     }
  }