Hi there! Sentcs, did you solve your problem? I'm using jboss-4.2.3.GA with jboss-messaging-1.4.4.GA and randomly i have the same problem "java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)" and messages got stucked with state "+". This just happen when i use Transactional connections to the queues. Anyone can help? Thnks in advance. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4251787#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...