I have been reading through the documentation and I see references to running Seam inside of non EJB 3.0 containers. I have been trying to set it up inside of another and was having a bit of success until I started getting: Caused by: java.lang.NoClassDefFoundError: javax/persistence/Entity at org.jboss.seam.Seam.getComponentType(Seam.java:74) at org.jboss.seam.Component.(Component.java:212) at org.jboss.seam.Component.(Component.java:203) at org.jboss.seam.init.Initialization.addComponent(Initialization.java:851) If I am not mistaken, javax.persistence.Entity is new in JavaEE right? Is there some kind of configuration that I need to turn off or something? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4043903#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...