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https://issues.apache.org/jira/browse/TOMEE-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13488685#comment-13488685
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Donatas Ciuksys commented on TOMEE-509:
---------------------------------------
I have asked EJB experts for their opinion:
http://java.net/projects/ejb-spec/lists/users/archive/2012-11/message/0
> Injected extended EntityManager is not registered (cannot be used for DB
> operations)
> ------------------------------------------------------------------------------------
>
> Key: TOMEE-509
> URL: https://issues.apache.org/jira/browse/TOMEE-509
> Project: TomEE
> Issue Type: Bug
> Affects Versions: 1.5.0, 1.5.1
> Environment: Windows 7 x64; jdk1.7.0_09 32 bit;
> apache-tomee-1.5.1-20121026.064316-51-webprofile.zip
> Reporter: Donatas Ciuksys
> Priority: Critical
>
> 1. Create class EntityManagerProducer:
> @SessionScoped
> @Stateful
> public class EntityManagerProducer implements Serializable {
>
> @PersistenceContext(type=PersistenceContextType.EXTENDED)
> private EntityManager em;
>
> @Produces
> public EntityManager getEntityManager() {
> return em;
> }
> }
> 2. Create injection client:
> @Named
> public class A {
>
> @Inject
> private EntityManager em;
> public String getDelegateClassName() {
> return em.getDelegate().getClass().getCanonicalName();
> }
>
> }
> 3. Create JSF page and try to call getDelegateClassName():
> <h:body>
> EntityManager is open: #{a.delegateClassName}
> </h:body>
> 4. Deploy (successful) and run the application - observe error message
> (printed in browser):
> An Error Occurred:
> InternalError: an entity manager should already be registered for this
> extended persistence unit
> viewId=/index.xhtml
> location=D:\dev\proj\templates\InjectionDemo\build\web\index.xhtml
> phaseId=RENDER_RESPONSE(6)
> Caused by:
> java.lang.IllegalStateException - InternalError: an entity manager should
> already be registered for this extended persistence unit
> at
> org.apache.openejb.persistence.JtaEntityManagerRegistry.getEntityManager(JtaEntityManagerRegistry.java:99)
> - Stack Trace
> java.lang.IllegalStateException: InternalError: an entity manager should
> already be registered for this extended persistence unit
> at
> org.apache.openejb.persistence.JtaEntityManagerRegistry.getEntityManager(JtaEntityManagerRegistry.java:99)
> at
> org.apache.openejb.persistence.JtaEntityManager.getEntityManager(JtaEntityManager.java:80)
> at
> org.apache.openejb.persistence.JtaEntityManager.getDelegate(JtaEntityManager.java:114)
> at
> org.apache.openejb.persistence.JtaEntityManager.getDelegate(JtaEntityManager.java:53)
> at beans.A.getDelegateClassName(A.java:19)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> ...
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