Skip the current iteration of the task if the previous iteration took more time than the expected time

DelayedTaskSkipTest.java

public class DelayedTaskSkipTest
{
  public static void main(String[] args) throws Throwable
  {
    long delayBetweenTaskIterationsInMillis = 2000;

    Timer timer = new Timer();
    timer.scheduleAtFixedRate(new TimerTask()
    {
      int i = 1;

      @Override
      public void run()
      {
        long delay = System.currentTimeMillis() - scheduledExecutionTime();
        if (delay >= 100 /* MAX_TARDINESS */)
        {
          System.out.printf("%nSkipping the current iteration as it was delayed by %3d ms%n%n", delay);
          return;
        }

        System.out.printf("%d Start %tT:%<tL%n", i, new Date());
        try
        {
          Thread.sleep(delayBetweenTaskIterationsInMillis + 200);
        }
        catch (InterruptedException e)
        {
          e.printStackTrace();
        }
        System.out.printf("  End   %tT:%<tL%n", new Date());

        if (i++ == 4)
          timer.cancel();
      }
    }, 0 /* delay */, delayBetweenTaskIterationsInMillis);
  }
}