Thanks for your reply. I'm now passed that problem and yet the fact that the method did not return puzzles me but I don't have time to investigate this issue. I just can say that it was related to creation of a web service which used https URL. From the minute we moved to work with http it was ok - I was just a client to this web service. BTW I'm familiar with thread cancel issue ("stop" by interrupt). The timer service instance got a null value. When a new timer was created and started the null timer was invoked as well this led to multiple timer instances without being able to control them. Thanks again and I wish I had time to keep on working on this as I'm prety I would discover lots of related an non related info. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4256375#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...