private void substractFromCurrentSize(long size){
  currentSize.addAndGet(-(size));
  dataRemovedInBytes.addAndGet(size);
}

private void substractFromCurrentSize ( long size ) { currentSize . addAndGet ( - ( size ) ) ; dataRemovedInBytes . addAndGet ( size ) ; }
subtracts size value from the current size . < p > this method is thread safe .
