--- old/src/share/vm/runtime/thread.hpp	Wed Aug 31 15:24:30 2011
+++ new/src/share/vm/runtime/thread.hpp	Wed Aug 31 15:24:30 2011
@@ -841,7 +841,6 @@
   volatile oop     _exception_oop;               // Exception thrown in compiled code
   volatile address _exception_pc;                // PC where exception happened
   volatile address _exception_handler_pc;        // PC for handler of exception
-  volatile int     _exception_stack_size;        // Size of frame where exception happened
   volatile int     _is_method_handle_return;     // true (== 1) if the current exception PC is a MethodHandle call site.
 
   // support for compilation
@@ -1182,7 +1181,6 @@
 
   // Exception handling for compiled methods
   oop      exception_oop() const                 { return _exception_oop; }
-  int      exception_stack_size() const          { return _exception_stack_size; }
   address  exception_pc() const                  { return _exception_pc; }
   address  exception_handler_pc() const          { return _exception_handler_pc; }
   bool     is_method_handle_return() const       { return _is_method_handle_return == 1; }
@@ -1190,7 +1188,6 @@
   void set_exception_oop(oop o)                  { _exception_oop = o; }
   void set_exception_pc(address a)               { _exception_pc = a; }
   void set_exception_handler_pc(address a)       { _exception_handler_pc = a; }
-  void set_exception_stack_size(int size)        { _exception_stack_size = size; }
   void set_is_method_handle_return(bool value)   { _is_method_handle_return = value ? 1 : 0; }
 
   // Stack overflow support
@@ -1264,7 +1261,6 @@
   static ByteSize exception_oop_offset()         { return byte_offset_of(JavaThread, _exception_oop       ); }
   static ByteSize exception_pc_offset()          { return byte_offset_of(JavaThread, _exception_pc        ); }
   static ByteSize exception_handler_pc_offset()  { return byte_offset_of(JavaThread, _exception_handler_pc); }
-  static ByteSize exception_stack_size_offset()  { return byte_offset_of(JavaThread, _exception_stack_size); }
   static ByteSize is_method_handle_return_offset() { return byte_offset_of(JavaThread, _is_method_handle_return); }
   static ByteSize stack_guard_state_offset()     { return byte_offset_of(JavaThread, _stack_guard_state   ); }
   static ByteSize suspend_flags_offset()         { return byte_offset_of(JavaThread, _suspend_flags       ); }