WELD-001409 Ambiguous dependencies for type EntityManager

[ansarbasha]

Hi,

Environment: seam 3 and jboss as 6.1

I have create two applications using seam forge and deployed on JBoss 6.1.0.Final, i can deploy these applications individually, however if I deploy these application together its throwing following exception, one application is getting deployed properly while the other application is not  and this second application throws following error.

16:46:33,246 ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] Error installing to Start: name=vfs:///C:/Users/hiq/workspace2/.metadata/.plugins/org.jboss.ide.eclipse.as.core/JBoss_
6.0_Runtime_Server1319125456744/deploy/timesheet.war_WeldBootstrapBean state=Create: org.jboss.weld.exceptions.DeploymentException: WELD-001409 Ambiguous dependencies for type [EntityManager] with qualifiers [@Default] at injection point [[field] @Inject protected uk.co.hiq.timesheet.view.TactivityBean.tsEntityManager]. Possible dependencies [[Producer Method [EntityManager] with qualifiers [@Any @Default] declared as [[method] @Produces @ConversationScoped public org.jboss.forge.persistence.TimesheetDatasourceProducer.createEM()], Producer Method [EntityManager] with qualifiers [@Any @Default] declared as [[method] @Produces @ConversationScoped public org.jboss.forge.persistence.DatasourceProducer.create()]]]

I tried adding @qualifier custom annotation for producer method of the Entitymanager but it started giving same problem with other objects in seam persistance as shown below.


WELD-001409 Ambiguous dependencies for type [Synchronizations] with qualifiers [@Default] at injection point [[parameter 1] of [method] @Inject public org.jboss.seam.transaction.EntityTransaction.init(Synchronizations)].

Any suggestions for resolution for this problem will be highly appreciated.

ansar

[lightguard]

Remove one of the listed producer methods

[ansarbasha]

How can i remove from this class and if i remove how should i create entitymanager.

package org.jboss.forge.persistence;
public class TimesheetDatasourceProducer implements Serializable {
  private static final long serialVersionUID=-5267593171036179836L;
  @PersistenceUnit private EntityManagerFactory emf;
  @Produces @SessionScoped public EntityManager createEM(){
    return emf.createEntityManager();
  }
  public void close(  @Disposes EntityManager em){
    em.close();
  }
}

thanks
ansar

[lightguard]

As there's no additional persistence unit being used it looks like, you should be safe to simply remove one of the classes. You have two classes that are producing an EntityManager with the same qualifiers, one of them needs to be deleted.

[ansarbasha]

I have two different applications, developed in seam 3 using seam forge, one get properly deployed for other one i get this error, i cannot deploy more than one app, this is on jboss 6 latest build, jboss 7 has lots of changes to be done, so i'm differing it for some time.

thanks
ansar

[lightguard]

Ansar, what you are seeing is there are two producers for the EntityManager with the exact same qualifiers, one of them must be removed. I can't say it another way.

[ansarbasha]

Jason,

Looks like you have not read the post properly, these are two different applications, i did the changes you suggested long back before posting here, even after changing the things you are suggesting i get same error for different objects like

WELD-001409 Ambiguous dependencies for type Synchronizations] with qualifiers [@Default] at injection point [[parameter 1] of [method] @Inject public org.jboss.seam.transaction.EntityTransaction.init(Synchronizations)

if i change this i'll get error in another object either with logger or some other object, i hope you are understanding, t too cannot put in simple words than this.

ansar

[lightguard]

Sorry about that.

I'm not sure which package that's coming from, the jpa-api jar perhaps? It looks like you have two jars containing that class on the class path. Please list the jars in your application.