java.lang.NullPointerException
at org.jboss.ejb3.entity.hibernate.ExtendedSessionInvocationHandler.getPersistenceContext(ExtendedSessionInvocationHandler.java:59)
at org.jboss.ejb3.entity.hibernate.ExtendedSessionInvocationHandler.getHibernateSession(ExtendedSessionInvocationHandler.java:68)
at org.jboss.ejb3.entity.hibernate.ExtendedSessionInvocationHandler.invoke(ExtendedSessionInvocationHandler.java:88)
at $Proxy225.toString(Unknown Source)
at java.lang.String.valueOf(String.java:2615)
at java.lang.StringBuilder.append(StringBuilder.java:116)
at org.jboss.injection.JndiPropertyInjector.inject(JndiPropertyInjector.java:116)
at org.jboss.injection.JndiPropertyInjector.inject(JndiPropertyInjector.java:89)
at org.jboss.injection.JndiPropertyInjector.inject(JndiPropertyInjector.java:61)