IoBuffer fetchOutNetBuffer(){
  IoBuffer answer=outNetBuffer;
  if (answer == null) {
    return emptyBuffer;
  }
  outNetBuffer=null;
  return answer.shrink();
}

IoBuffer fetchOutNetBuffer ( ) { IoBuffer answer = outNetBuffer ; if ( answer == null ) { return emptyBuffer ; } outNetBuffer = null ; return answer . shrink ( ) ; }
get encrypted data to be sent .
