src/hotspot/share/gc/z/zRootsIterator.cpp

*** 89,99 ****
      _iter(iter),
      _claimed(false) {}
  
  template <typename T, void (T::*F)(ZRootsIteratorClosure*)>
  void ZSerialOopsDo<T, F>::oops_do(ZRootsIteratorClosure* cl) {
!   if (!_claimed && Atomic::cmpxchg(true, &_claimed, false) == false) {
      (_iter->*F)(cl);
    }
  }
  
  template <typename T, void (T::*F)(ZRootsIteratorClosure*)>
--- 89,99 ----
      _iter(iter),
      _claimed(false) {}
  
  template <typename T, void (T::*F)(ZRootsIteratorClosure*)>
  void ZSerialOopsDo<T, F>::oops_do(ZRootsIteratorClosure* cl) {
!   if (!_claimed && Atomic::cmpxchg(&_claimed, false, true) == false) {
      (_iter->*F)(cl);
    }
  }
  
  template <typename T, void (T::*F)(ZRootsIteratorClosure*)>
*** 116,126 ****
      _iter(iter),
      _claimed(false) {}
  
  template <typename T, void (T::*F)(BoolObjectClosure*, ZRootsIteratorClosure*)>
  void ZSerialWeakOopsDo<T, F>::weak_oops_do(BoolObjectClosure* is_alive, ZRootsIteratorClosure* cl) {
!   if (!_claimed && Atomic::cmpxchg(true, &_claimed, false) == false) {
      (_iter->*F)(is_alive, cl);
    }
  }
  
  template <typename T, void (T::*F)(BoolObjectClosure*, ZRootsIteratorClosure*)>
--- 116,126 ----
      _iter(iter),
      _claimed(false) {}
  
  template <typename T, void (T::*F)(BoolObjectClosure*, ZRootsIteratorClosure*)>
  void ZSerialWeakOopsDo<T, F>::weak_oops_do(BoolObjectClosure* is_alive, ZRootsIteratorClosure* cl) {
!   if (!_claimed && Atomic::cmpxchg(&_claimed, false, true) == false) {
      (_iter->*F)(is_alive, cl);
    }
  }
  
  template <typename T, void (T::*F)(BoolObjectClosure*, ZRootsIteratorClosure*)>