[rules-users] Timer does not return!

I have a timer in my code that does not return. It just hangs the process (with no CPU activity). Any idea what may be causing this? The timer delay is 2000 ms. Based on the docs, here are code snippets: ....... ksession = kbase.newStatefulKnowledgeSession(); new Thread(new Runnable() { public void run() { ksession.fireUntilHalt(); } }).start(); ........ final RFQRequest req = createRequest(); parameters.put("rfqIn", req); ksession.setGlobal("reqTag", req.getTag()); ksession.startProcess("com.rbs.gbm.pm.RFQ-WorkFlow", parameters); ........ If I remove the fireUntilHalt thread, the timer is not triggered at all. The flow just passes through it lilke its not even there. Any help / info / pointers will be appreciated. Thanks Ajay *****Please note that my email address may have changed. For all future correspondence, please use this address***** ********************************************************************This message (including any attachments) is confidential and/or privileged. It is to be used by the intended recipients only. If you have received it by mistake please notify the sender by return e-mail and delete this message from your system. Any unauthorized use or dissemination of this message in whole or in part is strictly prohibited. Please note that e-mails are inherently insecure and susceptible to change. The Royal Bank of Scotland Group, plc ("RBS") and its US subsidiaries, and affiliates and subsidiary undertakings, including but not limited to, RBS plc New York and Connecticut Branches, RBS Securities Inc., ABN AMRO Bank N.V. New York and Chicago Branches and, ABN AMRO Incorporated, Citizens Financial Group, Inc. and RBS Citizens, N.A., shall not be liable for the improper or incomplete transmission of the information contained in this communication or Attachment nor for any delay in its receipt or damage to your system. RBS does not guarantee that the integrity of this communication has been maintained nor that this communication is free of viruses, interceptions or interference. RBS and its subsidiaries and affiliates do not guarantee the accuracy of any email or attachment, that an email will be received or that RBS or its affiliates and subsidiaries will respond to an email. RBS makes no representations that any information contained in this message (including any attachments) are appropriate for use in all locations or that transactions, securities, products, instruments or services discussed herein are available or appropriate for sale or use in all jurisdictions, or by all investors or counterparties. Those who utilize this information do so on their own initiative and are responsible for compliance with applicable local laws or regulations.********************************************************************