Examples of java.util.TimerTask.cancel()

java.util.TimerTask.cancel()
Cancels this timer task. If the task has been scheduled for one-time execution and has not yet run, or has not yet been scheduled, it will never run. If the task has been scheduled for repeated execution, it will never run again. (If the task is running when this call occurs, the task will run to completion, but will never run again.)
Note that calling this method from within the run method of a repeating timer task absolutely guarantees that the timer task will not run again.
This method may be called repeatedly; the second and subsequent calls have no effect. @return true if this task is scheduled for one-time execution and hasnot yet run, or this task is scheduled for repeated execution. Returns false if the task was scheduled for one-time execution and has already run, or if the task was never scheduled, or if the task was already cancelled. (Loosely speaking, this method returns true if it prevents one or more scheduled executions from taking place.)

                Thread.sleep(1000);
            }
        }


        // Stop the timer, server should be up now
        timeoutTask.cancel();


        log.info("Geronimo server started in " + watch);


        if (!background) {
            log.info("Waiting for Geronimo server to shutdown...");

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                Thread.sleep(1000);
            }
        }


        // Stop the timer, server should be up now
        timeoutTask.cancel();


        log.info("Geronimo server started");
    }


    protected String getFullClassName() {

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        for (Iterator iterator = ids.iterator(); iterator.hasNext();) {
            Long idLong = (Long) iterator.next();
            WorkInfo workInfo = getWorkInfo(idLong);
            if (workInfo != null) {
                TimerTask timerTask = workInfo.getExecutorFeedingTimerTask();
                timerTask.cancel();
            }
        }
    }


    void addWorkInfo(WorkInfo worker) {

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    if ((timerTask = (TimerTask) timerMap.remove(task)) == null) {
      throw new JMSException("Unknown timer");
    }


    timerTask.cancel();


  }


  public String getDestinationName(Destination to) throws JMSException {
    Thread.currentThread().setContextClassLoader(contextClassLoader);

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    }
    
    public synchronized void cancel(Runnable task) {
      TimerTask ticket = timerTasks.remove(task);
        if (ticket != null) {
            ticket.cancel();
            timer.purge();//remove cancelled TimerTasks
        }
    }


    public synchronized void executeAfterDelay(final Runnable task, long redeliveryDelay) {

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    }


    public static synchronized void cancel(Runnable task) {
      TimerTask ticket = TIMER_TASKS.remove(task);
        if (ticket != null) {
            ticket.cancel();
            CLOCK_DAEMON.purge();//remove cancelled TimerTasks
        }
    }


    public static void executeAfterDelay(final Runnable task, long redeliveryDelay) {

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       return subscribers.remove(subscriber);
    }


    public void refreshSubscriber(final Subscriber subscriber, boolean persist) {
        TimerTask lifetimeTask = subscriber.getLifetime();
        if ( lifetimeTask != null ) lifetimeTask.cancel();
        if ( subscriber.getSubscriptionLifetime() > 0 ) {
            Domain.log("Refreshing subscriber with ID: "+subscriber.getId(), LOG_CHANNEL, Logger.INFO);
            TimerTask lifetime = new TimerTask() {
                public void run() {
                    Domain.log("Removing subscriber with ID: "+subscriber.getId(), LOG_CHANNEL, Logger.INFO);

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                Thread.sleep(1000);
            }
        }


        // Stop the timer, server should be up now
        timeoutTask.cancel();


        log.info("Geronimo server started in " + watch);


        if (!background) {
            log.info("Waiting for Geronimo server to shutdown...");

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        for (Iterator iterator = ids.iterator(); iterator.hasNext();) {
            Long idLong = (Long) iterator.next();
            WorkInfo workInfo = getWorkInfo(idLong);
            if (workInfo != null) {
                TimerTask timerTask = workInfo.getExecutorFeedingTimerTask();
                timerTask.cancel();
            }
        }
    }


    void addWorkInfo(WorkInfo worker) {

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                Thread.sleep(1000);
            }
        }


        // Stop the timer, server should be up now
        timeoutTask.cancel();
        
        log.info("Geronimo server started");


        if (!background) {
            log.info("Waiting for Geronimo server to shutdown...");

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