private void releaseReservation(int nBytes){
  assertOpen();
  releaseBytes(nBytes);
  if (DEBUG) {
    historicalLog.recordEvent("releaseReservation(%d)",nBytes);
  }
}

private void releaseReservation ( int nBytes ) { assertOpen ( ) ; releaseBytes ( nBytes ) ; if ( DEBUG ) { historicalLog . recordEvent ( "releaseReservation(%d)" , nBytes ) ; } }
return the reservation back to the allocator without having used it .
