title: Spring scheduler cron expression not working
body: <p>We are use spring scheduler with following setting but wondering why its not working for us?</p>
  
  <p>Our expectation is it should execute every day at 2 AM, Is anything wrong with that?</p>
  
  <pre><code>&lt;task:scheduled ref="invoiceScheduler" method="updateInvoiceStatusToOverDue" cron="0 0 2 * * ?" /&gt;
  </code></pre>
  
  <p>Thanks in Advance.</p>