Examples of java.util.Timer$TimerImpl$TimerTree

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)

    return new FlatXmlDataSet(TestCrawlRssFeed.class
        .getResourceAsStream("/TestCrawlRssFeed-input.xml"));
  }


  public void testRun() throws Exception{
    Timer timer = new Timer();
    timer.schedule(crawlRssFeed,0);
    crawlRssFeed.awaitAndShutdown(60,TimeUnit.SECONDS);
        
    Folder folder66 = folderManager.getUserFolder(new User(2), "latest news");
    Folder folder67 = folderManager.getUserFolder(new User(2), "news2");
    assertTrue(folder66.getSize()>0);

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  /**
   * Starts to update the values with the previously set period. Default is 1 second.
   */
  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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    permanentBans = new LinkedList<InetAddressMask>();
    temporalBans = Collections.synchronizedList(new LinkedList<InetAddressMask>());


    /* read ban list from configuration */
    loadBannedIPNetworkListFromDB();
    timer = new Timer();
  }

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     * Sets up a timer to check for hangs frequently.
     */
    private void initTimer() {
        final long initialDelayMs = 0;
        final boolean isDaemon = true;
        Timer timer = new Timer("EventDispatchThreadHangMonitor", isDaemon);
        timer.schedule(new HangChecker(), initialDelayMs, CHECK_INTERVAL_MS);
    }

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     * Creates a timer for use by the Resource Adapter.
     * @return Timer object
     * @throws UnavailableException if a Timer instance is unavailable
     */
    public Timer createTimer() throws UnavailableException {
        return new Timer(true);
    }

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      {
         return;
      }
      
      //Needs to be daemon
      timer = new Timer(true);
      
      //Add a random delay to prevent all timers starting at once
      long delay = (long)(period * Math.random());
      
      task = new SendStatsTimerTask();

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     * 
     * @see java.lang.Thread#run()
     */
    public void run()
    {
        Timer timer = null;


        this._readpool = ThreadPoolFactory.createFixedThreadPool( this._serverInfo.getMaxReadProcessors(),
                                                                  this._readGroup );
        // create a global ThreadPool for network write operations
        this._writePool = ThreadPoolFactory.createFixedThreadPool( this._serverInfo.getMaxWriteProcessors(),
                                                                   this._writeGroup );


        // shall we monitor the ThreadPools and resize them
        // according to server load (this will also recreate died worker
        // threads)
        if ( this._serverInfo.isAutomaticThreadPoolResize() )
        {
            timer = new Timer();


            // schedule a monitor task for the read-process-thread-pool
            timer.schedule( new ThreadPoolResizer( this._readpool, this._serverInfo.getMaxReadProcessors(),
                                                   EJConstants.EJOE_POOL_RESIZER_SHRINKWAIT ), this._serverInfo
                    .getPoolResizePeriod(), this._serverInfo.getPoolResizePeriod() );
            // schedule a monitor task for the writer-thread-pool
            timer.schedule( new ThreadPoolResizer( this._writePool, this._serverInfo.getMaxWriteProcessors(),
                                                   EJConstants.EJOE_POOL_RESIZER_SHRINKWAIT ), this._serverInfo
                    .getPoolResizePeriod(), this._serverInfo.getPoolResizePeriod() );
        }


        try
        {
            Iterator it;
            SocketChannel cChannel;
            SelectionKey selKey;
            ConnectionHeader clientInfo;
            Set keys;


            while ( !isInterrupted() )
            {
                this._load = 0;


                // (pre)register interested socket channels
                registerAspirants();


                // just try endless new selects until there are interested
                // socket channels
                if ( _selector.select() == 0 ) continue;


                keys = this._selector.selectedKeys();
                this._load = keys.size();
                it = this._selector.selectedKeys().iterator();


                // loop over all selected channels, just take care of thread
                // interruption
                while ( it.hasNext() && !isInterrupted() )
                {
                    selKey = (SelectionKey) it.next();
                    // remove the SelectionKey from the Iterator otherwise it
                    // will be lost
                    it.remove();


                    try
                    {
                        // validate the key
                        if ( !selKey.isValid() ) continue;


                        // at least our ConnectionAcceptor has created a client
                        // ConnectionHeader
                        clientInfo = (ConnectionHeader) selKey.attachment();


                        // first check read-availbility
                        if ( selKey.isReadable() )
                        {
                            // get the underlying socket channel
                            cChannel = (SocketChannel) selKey.channel();
                            // cancel the channels registration with our
                            // Selector
                            selKey.cancel();


                            // little bit paranoia
                            if ( cChannel != null && cChannel.isOpen() )
                            {
                                // don't we support NIO?
                                if ( !this._serverInfo.hasNonBlockingReadWrite() )
                                {
                                    logger.log( Level.FINEST,
                                                "Setting socket to blocking mode for further io operations..." );


                                    // prepare the channel for upcoming blocking
                                    // network operations
                                    cChannel.configureBlocking( true );
                                }


                                // schedule a asynchronious read-process operation
                                this._readpool.invokeLater( new ConnectionReader( this, this._serverInfo, clientInfo ) );
                            }
                        }
                        else if ( selKey.isWritable() )
                        {
                            // get the underlying socket channel
                            cChannel = (SocketChannel) selKey.channel();
                            // cancel the channels registration with our
                            // Selector
                            selKey.cancel();


                            // little bit paranoia
                            if ( cChannel != null && cChannel.isOpen() )
                            {
                                // don't we support NIO?
                                if ( !this._serverInfo.hasNonBlockingReadWrite() )
                                {
                                    if ( !clientInfo.hasAttachment() ) continue;
                                    // prepare the channel for upcoming blocking
                                    // network operations
                                    cChannel.configureBlocking( true );
                                }


                                // schedule a asynchronious socket-write
                                // operation
                                this._writePool
                                        .invokeLater( new ConnectionWriter( this, this._serverInfo, clientInfo ) );
                            }
                        }
                    }
                    catch ( CancelledKeyException cke )
                    {
                        logger.log( Level.WARNING, "Key cancelled!", cke );
                    }
                    finally
                    {
                        this._load--;
                    }
                }
            }
        }
        catch ( IOException e )
        {
            logger.log( Level.SEVERE, "!!! IOException occured !!! ", e );
            throw new RuntimeException( e );
        }
        finally
        {
            // kill our ThreadPool monitors if existent
            if ( timer != null ) timer.cancel();


            try
            {
                // shutdown the Read-Process-ThreadPool if existent
                if ( this._readpool != null )

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  public void initialize() {
    // No operation.
  }


  public void startService(){
    mTimer = new Timer();
    mTimer.schedule(this, 200, 1000);
    mLog.info("Pulse service started");
//    addEverySecondListener(this);
//    addCustomTimeListener(this);    
  }

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  private TimerTask monitorPathTask;
  private StatusUpdateTask statusUpdateTask;
  
  public NotificationTimer()
  {
    timer = new Timer();
  }

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        addMouseListener(new MouseAdapter()
        {
            TimerTask timerTask;
            public void mousePressed(MouseEvent mouseevent)
            {
                Timer timer = new Timer();
                timerTask = new TimerTask()
                {
                    public void run()
                    {
                        showSliderMenu();
                    }
                };


                timer.schedule(timerTask, 1000);
            }


            public void mouseReleased(MouseEvent mouseevent)
            {
                if (!sliderMenuVisible)

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