[ https://issues.jboss.org/browse/WFLY-12666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13800611#comment-13800611 ]
Brian Stansberry commented on WFLY-12666:
-----------------------------------------
[~smarlow]
{quote}
Or perhaps we could consider moving modules/system/layers/base/org/eclipse/persistence/main/module.xml to modules/org/eclipse/eclipselink/main/module.xml.
{quote}
WildFly should not ship modules outside of modules/system/layers/base.
I also don't think moving the module would prevent patch conflict problems. If it did it would be because moving the module prevents it being patched, which is not good.
> JPA jipijapa use optional dependencies instead of modifying the system module
> -----------------------------------------------------------------------------
>
> Key: WFLY-12666
> URL: https://issues.jboss.org/browse/WFLY-12666
> Project: WildFly
> Issue Type: Enhancement
> Components: JPA / Hibernate
> Affects Versions: 18.0.0.Final
> Reporter: Brad Maxwell
> Assignee: Scott Marlow
> Priority: Major
> Attachments: WFLY-12666-overlay.zip
>
>
> As per [1] it requires modifying the modules under system/layers/base, these are system modules which users really should not modify. When applying patches it will complain because the module has been modified.
> It would be better if these modules depended on an optional module which would not exist unless the user configured this. So for example a user could create modules/org/eclipse/persistence/impl/main/module.xml
> modules/system/layers/base/org/eclipse/persistence/main/module.xml
> It looks like this almost works with just adding the optional dependency, except there is an exception where it looks like the classloader may not be set correctly for some reason when the module is split into 2.
> {code}
> <module name="org.eclipse.persistence" xmlns="urn:jboss:module:1.5">
> ...
> <module name="org.eclipse.persistence.impl" optional="true" services="import"/>
> {code}
> {code}
> <?xml version="1.0" encoding="UTF-8"?>
> <module xmlns="urn:jboss:module:1.5" name="org.eclipse.persistence.impl">
> <resources>
> <!-- you want this jar to be loaded from the system module as it can be packaged potentially
> <resource-root path="jipijapa-eclipselink-7.3.0.Beta-redhat-00001.jar"/>
> -->
> <resource-root path="eclipselink.jar">
> <filter>
> <exclude path="javax/**"/>
> </filter>
> </resource-root>
> </resources>
> <dependencies>
> <module name="javax.api"/>
> <module name="javax.annotation.api"/>
> <module name="javax.enterprise.api"/>
> <module name="javax.persistence.api"/>
> <module name="javax.transaction.api"/>
> <module name="javax.validation.api"/>
> <module name="javax.xml.bind.api"/>
> <module name="org.antlr"/>
> <module name="org.dom4j"/>
> <module name="org.jboss.as.jpa.spi"/>
> <module name="org.jboss.logging"/>
> <module name="org.jboss.vfs"/>
> <module name="org.eclipse.persistence"/> <!-- to see jipijapa-eclipse-link if necessary -->
> </dependencies>
> </module>
> {code}
> {code}
> Caused by: java.lang.IllegalArgumentException: Object: com.jboss.examples.jpa.model.User at 4fbcb157 is not a known Entity type.
> at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4326)
> at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:596)
> at org.jboss.as.jpa.container.AbstractEntityManager.persist(AbstractEntityManager.java:580)
> at com.jboss.examples.jpa.TestSingleton.test(TestSingleton.java:29)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.jboss.as.ee.component.ManagedReferenceLifecycleMethodInterceptor.processInvocation(ManagedReferenceLifecycleMethodInterceptor.java:96)
> at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
> at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:509)
> at org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.delegateInterception(Jsr299BindingsInterceptor.java:79)
> at org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.doLifecycleInterception(Jsr299BindingsInterceptor.java:126)
> at org.jboss.as.weld.interceptors.Jsr299BindingsInterceptor.processInvocation(Jsr299BindingsInterceptor.java:112)
> at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
> at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:509)
> at org.jboss.weld.module.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:81)
> at org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:89)
> at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
> at org.jboss.as.weld.injection.WeldInjectionInterceptor.processInvocation(WeldInjectionInterceptor.java:53)
> at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:422)
> at org.jboss.as.ee.component.ManagedReferenceFieldInjectionInterceptorFactory$ManagedReferenceFieldInjectionInterceptor.processInvocation(ManagedReferenceFieldInjectionInterceptorFactory.java:112)
> {code}
> [1] https://docs.jboss.org/author/display/WFLY10/JPA+Reference+Guide#JPAReferenceGuide-UsingEclipseLink
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