[jboss-user] [JBoss Portal] - findUserByUserName Problem

Hi, when i try to find a User on this way: | User user = userModule.findUserByUserName(UserName); | i get following error: Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:400) ... 274 more Caused by: java.lang.ClassCastException: org.jboss.portal.identity.db.UserImpl at $Proxy148.findUserByUserName(Unknown Source) at TreeBacker.check_access(TreeBacker.java:100) at TreeBacker.get_tree_rek(TreeBacker.java:139) at TreeBacker.getTreeData(TreeBacker.java:232) ... 279 more Can anybody help me? Do I need to work with Transactions? If yes, how does this work? I want to user the User to get his Role... thx Marc View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3988879#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...