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

[djmacpac]

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

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