code: public static long stopNamedTimer(String timerName, int todoFlags) {
  		return stopNamedTimer(timerName, todoFlags, Thread.currentThread()
  				.getId());
  	}
docs: Stop a timer of the given string name for the current thread. If no such
  timer exists, -1 will be returned. Otherwise the return value is the CPU
  time that was measured.
  
  @param timerName
  the name of the timer
  @param todoFlags
  @return CPU time if timer existed and was running, and -1 otherwise