The hibernate tools used to be difficult to get installed pre JBOSS but when you did get them installed. It worked. Now a days I have to rely on ant scripts to do all the work since the tools almost NEVER work. JBOSS please spend a little more time if your going to own the hibernate tools and eclipse plugin making sure that it works or else give the ownership back to hibernate. Case In Point: Using Eclipse - Galileo (base J2EE Install) Milestone Build of the tools when creating a hbm.xml file (Unhandled event loop exception Java.lan.StackOverflowError) Nightly Build of the tools when creating a hbm.xml file (Unhandled event loop exception Java.lan.StackOverflowError) Sorry if this seems rude, I'm just tired of having to rely on Ant to do what your toolset is supposed to do for me. Before some Fan Boys comment back. Yes I have worked with Ganymede and the tools are just as broken after a base installation there using the "STABLE" tools. Thomas View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4263293#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...