Right, according to the J2EE specification and even best J2EE practice, unmanaged threads should be avoided. That's why J2EE promotes WorkManager which is managed and able to do the jobs parallel. WorkManager leverage the J2EE container so it should be able to lookup JNDI context. This would make sure your code in high quality and portable between different app server and different J2EE version as well. ( You'll never know when Weblogic will denial the lookup because it's not in spec) http://www.devx.com/Java/Article/28815 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4186228#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...