private void obtainWriteLocksForClear(RegionEventImpl regionEvent,Set<InternalDistributedMember> participants){
  lockLocallyForClear(getDistributionManager(),getMyId(),regionEvent);
  DistributedClearOperation.lockAndFlushToOthers(regionEvent,participants);
}

private void obtainWriteLocksForClear ( RegionEventImpl regionEvent , Set < InternalDistributedMember > participants ) { lockLocallyForClear ( getDistributionManager ( ) , getMyId ( ) , regionEvent ) ; DistributedClearOperation . lockAndFlushToOthers ( regionEvent , participants ) ; }
obtain locks preventing generation of new versions in other members
