Hello. I sucessfully made JBoss AS 4.0.5.GA run on OS/400. It runs fine with clean installation But problem occurs when i want do deploy some JEE application (with Seam and EJB3). I've got the same problem as http://www.jboss.com/index.html?module=bb&op=viewtopic&t=80380 I've builded from sources hibernate, hibernate annotations, hibernate entitymanager and even JBoss ASusing IBM JDK (but on Windows not on OS/400 because i wanted to avoid configuration for ant and other things). Still i've got the same error: | 2007-02-15 14:11:27,243 WARN [org.hibernate.ejb.Ejb3Configuration] Persistence provider caller does not implements the EJB3 spec correctly. PersistenceUnitInfo.getNewTempClassLoader() is null. | 2007-02-15 14:11:27,860 DEBUG [org.jboss.ejb3.ServiceDelegateWrapper] Starting failed persistence.units:ear=SomeProject.ear,jar=SomeProject.jar,unitName=SomeProject | java.lang.RuntimeException: java.lang.NoClassDefFoundError: javax/persistence/NamedNativeQuery | at java.lang.Throwable.<init>(Throwable.java:241) | at java.lang.Exception.<init>(Exception.java:77) | at java.lang.RuntimeException.<init>(RuntimeException.java:77) | at org.jboss.ejb3.ServiceDelegateWrapper.startService(ServiceDelegateWrapper.java:108) | | Using Google i've found that sometimes it helps to compile libraries with JIKE (but I don't want do build all the libraries). Please help... any answer or idea will be appreciated.. Artur View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4017050#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...