title: No output from exception
body: <p>Why does this code not print an exception stack trace?</p>
  
  <pre><code>public class Playground {
  
      /**
       * @param args
       */
      public static void main(String[] args) {
          startThread();
      }
  
      private static void startThread() {
          ScheduledExecutorService timer = Executors
                  .newSingleThreadScheduledExecutor();
          Runnable r = new Runnable() {
              int dummyInt = 0;
              boolean dummyBoolean = false;
  
              @Override
              public void run() {
                  dummyInt = Integer.parseInt("AAAA");
  
                  if (dummyBoolean) {
                      dummyBoolean= false;
                  } else {
                      dummyBoolean= true;
                  }
  
              }
  
          };
  
          timer.scheduleAtFixedRate(r, 0, 100, TimeUnit.MILLISECONDS);
  
      }
  
  }
  </code></pre>
  
  <p>How can I get it to?  </p>
  
  <p>I would expect to see this:</p>
  
  <pre><code>java.lang.NumberFormatException: For input string: "AAAA"
      at java.lang.NumberFormatException.forInputString(Unknown Source)
      at java.lang.Integer.parseInt(Unknown Source)
      at java.lang.Integer.parseInt(Unknown Source)
      at Playground$1.run(Playground.java:25)
      at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
      at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)
      at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
      at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(Unknown Source)
      at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(Unknown Source)
      at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
      at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
      at java.lang.Thread.run(Unknown Source)
  </code></pre>