src/hotspot/share/oops/oop.inline.hpp

*** 386,396 ****
  // not headers.
  oop oopDesc::atomic_exchange_oop(oop exchange_value, volatile HeapWord *dest) {
    if (UseCompressedOops) {
      // encode exchange value from oop to T
      narrowOop val = encode_heap_oop(exchange_value);
!     narrowOop old = (narrowOop)Atomic::xchg(val, (narrowOop*)dest);
      // decode old from T to oop
      return decode_heap_oop(old);
    } else {
      return Atomic::xchg(exchange_value, (oop*)dest);
    }
--- 386,396 ----
  // not headers.
  oop oopDesc::atomic_exchange_oop(oop exchange_value, volatile HeapWord *dest) {
    if (UseCompressedOops) {
      // encode exchange value from oop to T
      narrowOop val = encode_heap_oop(exchange_value);
!     narrowOop old = Atomic::xchg(val, (narrowOop*)dest);
      // decode old from T to oop
      return decode_heap_oop(old);
    } else {
      return Atomic::xchg(exchange_value, (oop*)dest);
    }