[jboss-jira] [JBoss JIRA] (WFLY-6485) add JPA dependency in subdeployments to avoid NPE

[Martin Kouba (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-6485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13186727#comment-13186727 ] 

Martin Kouba commented on WFLY-6485:
------------------------------------

That's great :-)

> add JPA dependency in subdeployments to avoid NPE 
> --------------------------------------------------
>
>                 Key: WFLY-6485
>                 URL: https://issues.jboss.org/browse/WFLY-6485
>             Project: WildFly
>          Issue Type: Bug
>          Components: CDI / Weld, JPA / Hibernate
>    Affects Versions: 10.0.0.Final
>            Reporter: Scott Marlow
>            Assignee: Scott Marlow
>
> WeldDeploymentProcessor only processes top level deployments (subdeployments are skipped). This means that subdeployments that CDI inject a persistence unit/context, will not add a dependency on the JPA PersistenceUnitService. As a result, the PersistenceUnitService is referenced before it is started (which leads to PersistenceUnitService.entityManagerFactory being null).
> We should avoid the following NPE by ensuring that dependencies on the JPA persistence unit are added for all sub-deployments.
> {quote}
> Caused by: java.lang.NullPointerException
> at org.jboss.as.jpa.container.TransactionScopedEntityManager.createEntityManager(TransactionScopedEntityManager.java:186)
> at org.jboss.as.jpa.container.TransactionScopedEntityManager.getEntityManager(TransactionScopedEntityManager.java:91)
> at org.jboss.as.jpa.container.AbstractEntityManager.find(AbstractEntityManager.java:212)
> {quote}
> Potential fix is at [https://github.com/scottmarlow/wildfly/tree/jpaNPE]



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