public void stop(){
  if (output) {
    System.setOut((PrintStream)out);
  }
 else {
    System.setErr((PrintStream)out);
  }
}

public void stop ( ) { if ( output ) { System . setOut ( ( PrintStream ) out ) ; } else { System . setErr ( ( PrintStream ) out ) ; } }
stops intercepting system . out / system . err , sending output to wherever it was going when this interceptor was created .
