Examples of java.util.Timer$TimerImpl

java.util.Timer
Timers are used to schedule jobs for execution in a background process. A single thread is used for the scheduling and this thread has the option of being a daemon thread. By calling cancel you can terminate a timer and it's associated thread. All tasks which are scheduled to run after this point are cancelled. Tasks are executed sequentially but are subject to the delays from other tasks run methods. If a specific task takes an excessive amount of time to run it may impact the time at which subsequent tasks may run.
The Timer task does not offer any guarantees about the real-time nature of scheduling tasks as it's underlying implementation relies on the Object.wait(long) method.
Multiple threads can share a single Timer without the need for their own synchronization. @see TimerTask @see java.lang.Object#wait(long)

  
  /* (non-Javadoc)
   * @see com.slytechs.utils.Statistics#addTimerTask(java.util.TimerTask, java.lang.String, long)
   */
  public void addTimerTask(String taskName, long repeatInterval, TimerTask task) {
    Timer timer = new Timer(taskName);
    
    tasks.add(new TimerTaskInfo(taskName, repeatInterval, task, timer));
    
    logger.trace("Adding task: " + taskName);

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        public IPCExecutionListener(ClientProcess client) {
            this.client = client;


            //start a timer to periodically send our live output to our server
            liveOutputTimer = new Timer();
            liveOutputTimer.scheduleAtFixedRate(new TimerTask() {
                @Override
                public void run() {
                    sendLiveOutput();
                }

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    this(display, icon, MessageText.getString(keyPrefix + ".title"),
        MessageText.getString(keyPrefix + ".text", textParams), details);
  }


  public MessagePopupShell(Display display,String icon,String title,String errorMessage,String details) {
    closeTimer = new Timer(true);


    this.display = display;
    this.icon = icon;
    detailsShell = new Shell(display,SWT.BORDER | SWT.ON_TOP);
    Utils.setShellIcon(detailsShell);

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    }


    synchronized (this) {
      accumulator+=zoomIncrement;
      if (zoomAccumulator!=null) return;
      zoomAccumulator = new Timer();
      zoomAccumulator.schedule(new TimerTask() {
        public void run() {
          int accuCopy;
          synchronized (Frame3DJava3D.this) {
            accuCopy = accumulator;

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        assertEquals(4, r.getLower().intValue());
        assertEquals(6, r.getUpper().intValue());      
    }
    
    public void testMonitor() throws SequenceFault {
        Timer t = new Timer();
        destination.getHandler();
        expectLastCall().andReturn(handler).times(15);
        handler.getTimer();
        expectLastCall().andReturn(t).times(15);
        destination.getRMAssertion();

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        AcknowledgementInterval ai = 
            RMUtils.getWSRMPolicyFactory().createRMAssertionTypeAcknowledgementInterval();
        ai.setMilliseconds(new BigInteger("200"));
        rma.setAcknowledgementInterval(ai);        
       
        Timer timer = new Timer();
        destination.getHandler();
        expectLastCall().andReturn(handler).times(3);
        handler.getTimer();
        expectLastCall().andReturn(timer).times(1);
        destination.getRMAssertion();

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      }
      synchronized(timerLock){
        if(timer!=null){
          return; // there is a timer let it do its job
        }
        timer = new Timer(true); // do not block the application on exit  
        timer.schedule(new TimerTask() {
        public void run() {
          int n=0;
          synchronized(paintedAreas){
            Iterator it=paintedAreas.keySet().iterator();

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    if (refreshPeriodChanged || timer == null){
      refreshPeriodChanged = false;
      if (timer!=null) 
        timer.cancel();
      timer = new Timer(true); // do not block the application on exit
      timer.schedule(new SceneTimerTask(),0,refreshPeriod);
    }
  }

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     */
    public void start() {
        if (isRunning()) {
            return;
        }
        timer = new Timer(true); // do not block the application on exit
        timer.scheduleAtFixedRate(new TimerTask() {
            public void run() {
                try {
                    step();
                } catch (DataException e) {

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         log.warning("AlertScheduler is switched off with alertScheduler.pollInterval=" + this.period);
         return;
      }
      log.info("Starting timer with pollInterval=" + this.period + " ...");
      boolean isDaemon = true;
      this.timer = new Timer(/*"AlertScheduler", since JDK 1.5*/isDaemon);
      this.timer.schedule(this, 0L, this.period);
   }

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