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    java.lang.IllegalStateException: no long-running conversation for @Conversational bean: cRUDUserController
        at org.jboss.seam.interceptors.ConversationalInterceptor.checkConversationForConversationalBean(ConversationalInterceptor.java:52)
        at sun.reflect.GeneratedMethodAccessor311.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
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