public void addRemoveTimeNanos(long duration){
  rmvTimeNanos.addAndGet(duration);
  if (delegate != null)   delegate.addRemoveTimeNanos(duration);
}

public void addRemoveTimeNanos ( long duration ) { rmvTimeNanos . addAndGet ( duration ) ; if ( delegate != null ) delegate . addRemoveTimeNanos ( duration ) ; }
increments the remove time accumulator .
