WebLogic + ejb-transaction + EjbSynchronizations

[joff]

I'm hoping someone can help me with this.... it's fast becoming incredibly frustrating :(

I'm running WebLogic 10.3, and my appliction is a mix of EJB3 (stateful) beans, and Seam POJO components. From my reading, it seems I want be using JTA transactions (is this the recommended approach?)

persistence.xml:

    <persistence-unit name="bookItPersistenceUnit" transaction-type="JTA">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <jta-data-source>BookItDatasource</jta-data-source>
        <properties>
            <property name="hibernate.cache.provider_class" value="org.hibernate.cache.HashtableCacheProvider"/>
            <property name="hibernate.transaction.manager_lookup_class"
                      value="org.hibernate.transaction.WeblogicTransactionManagerLookup"/>
        </properties>
    </persistence-unit>

components.xml:

  <core:init debug="@debug@" jndi-pattern="java:comp/env/bookit/ejb/#{ejbName}/local" />

 <transaction:ejb-transaction />

    <persistence:entity-manager-factory name="bookItEntityManagerFactory"
                                        persistence-unit-name="bookItPersistenceUnit" />

    <persistence:managed-persistence-context name="entityManager"
                                                 auto-create="true"
                                                 entity-manager-factory="#{bookItEntityManagerFactory}"/>

When I deploy, I see in the logs:

   INFO: Component: org.jboss.seam.transaction.synchronizations, scope: EVENT, type: STATEFUL_SESSION_BEAN, class:
    org.jboss.seam.transaction.EjbSynchronizations, JNDI: java:comp/env/bookit/ejb/EjbSynchronizations/local

But when I try to access any pages in my app, I get:

Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: org.jboss.seam.transaction.synchronizations
     at org.jboss.seam.Component.newInstance(Component.java:2106)
...
Caused by: javax.naming.NameNotFoundException: While trying to look up comp/env/bookit/ejb/EjbSynchronizations/local in /app/webapp/BookIt/22293341.; remaining name 'comp/env/bookit/ejb/EjbSynchronizations/local'
     at weblogic.jndi.internal.BasicNamingNode.newNameNotFoundException(BasicNamingNode.java:1139)
     at weblogic.jndi.internal.ApplicationNamingNode.lookup(ApplicationNamingNode.java:144)
     at weblogic.jndi.internal.WLEventContextImpl.lookup(WLEventContextImpl.java:254)
     at weblogic.jndi.internal.WLContextImpl.lookup(WLContextImpl.java:380)
     at weblogic.jndi.factories.java.ReadOnlyContextWrapper.lookup(ReadOnlyContextWrapper.java:45)
     at weblogic.jndi.internal.AbstractURLContext.lookup(AbstractURLContext.java:130)
     at javax.naming.InitialContext.lookup(InitialContext.java:392)
     at org.jboss.seam.Component.instantiateSessionBean(Component.java:1367)
     at org.jboss.seam.Component.instantiate(Component.java:1331)

I have my SFSBs and the EjbSynchronizations bean specified in my ejb.jar.xml file, as per the instructions in the docs, and an <ejb-local-ref> entry for just my beans in web.xml

[chris.simons]

Hi Joseph,

Just curious if you ever resolved this issue?

[joff]

No, I'm afraid we never did solve this problem.
I could remove the <transaction:ejb-transaction/> line from components.xml, but then it complains of not being able to find the bookItEntityManagerFactory.

We're using @Asynchronous methods (and the <async:timer-service-dispatcher /> ) in our app now, so AFAIK, this will eventually stop us from using WebLogic anyway.

[dish13]

Hello,

Did you included the following entry in the web.xml?

<ejb-local-ref>
     <ejb-ref-name><EAR-NAME>/EjbSynchronizations/local</ejb-ref-name>
     <ejb-ref-type>Session</ejb-ref-type>
     <local>org.jboss.seam.transaction.LocalEjbSynchronizations</local>
     <ejb-link>EjbSynchronizations</ejb-link>
</ejb-local-ref>

Regards,

Amy

[shavo26]

Joseph.
I think this is the way your ejb local ref should be set based on your jndi pattern:

 <core:init debug="@debug@" jndi-pattern="java:comp/env/bookit/ejb/#{ejbName}/local" />
 
  
 <ejb-local-ref>
    <ejb-ref-name>bookit/ejb/EjbSynchronizations/local</ejb-ref-name>
    <ejb-ref-type>Session</ejb-ref-type>
    <local>org.jboss.seam.transaction.LocalEjbSynchronizations</local>
  </ejb-local-ref>