src/hotspot/share/gc/g1/g1ParallelCleaning.cpp

*** 37,47 ****
  bool JVMCICleaningTask::claim_cleaning_task() {
    if (_cleaning_claimed) {
      return false;
    }
  
!   return Atomic::cmpxchg(1, &_cleaning_claimed, 0) == 0;
  }
  
  void JVMCICleaningTask::work(bool unloading_occurred) {
    // One worker will clean JVMCI metadata handles.
    if (unloading_occurred && EnableJVMCI && claim_cleaning_task()) {
--- 37,47 ----
  bool JVMCICleaningTask::claim_cleaning_task() {
    if (_cleaning_claimed) {
      return false;
    }
  
!   return Atomic::cmpxchg(&_cleaning_claimed, 0, 1) == 0;
  }
  
  void JVMCICleaningTask::work(bool unloading_occurred) {
    // One worker will clean JVMCI metadata handles.
    if (unloading_occurred && EnableJVMCI && claim_cleaning_task()) {