[TOMEE-509] Injected extended EntityManager is not registered (cannot be used for DB operations)

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Not A Problem
• Affects Version/s: 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
• Assignee: Unassigned
• Reporter: Donatas Ciuksys
• Created: 26/Oct/12 11:51
• Updated: 27/Feb/13 15:38
• Resolved: 27/Feb/13 15:38

Description

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)
...