Hello, please help me, I do not know hot to do this. I have method A which has to load Test Entity (I use EJB3), update it and then proceed with oher method B. From the result of method B I have to update TEST entity again at the end of method A. I use Version column for concurrency. Here its with pseudo language: public void A { get entity TEST; update one or more attributes on TEST entity; call method B; // this method make updates to TEST Entity as well once again, update attribute on TEST entity; } The problem is that at the end of method A I get OptimisticLockException. How should I do this? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3986453#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...