[jboss-user] [JBoss Portal] - UserModule.findUserByUserName problem

[glarenzie]

I am doing the following in a portlet:
UserModule um = (UserModule)new InitialContext().lookup("java:portal/UserModule");
	System.out.println("UM: " + um);
	User u = um.findUserByUserName("fred");

and I get this output and error:

UM: org.jboss.portal.identity.db.HibernateUserModuleImpl at 965003
2007-06-12 10:34:34,137 ERROR [org.jboss.portal.identity.db.HibernateUserModuleImpl] Cannot find user by name fred
org.hibernate.HibernateException: Unable to locate current JTA transaction

What is this error trying to tell me?

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