Martin,
This list is used for both, the internal discussions, and the users questions.
You might get quicker answer via email, but you can choose to use forums if
they suit your better.
regards,
-marina
Martin Bayly wrote:
> Hi all
>
> In digging around for some more info on this issue I came across the
> java.net Glassfish forum. Is that a better place to ask questions like
> mine below?
> After seeing the posts on the persistence_at_glassfish.dev.java.net list
> over the last few days, I'm getting the impression that this is intended
> more as an internal list for the developers on the project. Sorry about
> that. I'll ask future questions over on the Glassfish forum.
> Incidentally, I'm using build v2-b21. I did find some similar
> references to my problem in the Glassfish forum, and references to an
> issue #713 so I'll do some more reading around that. However, I don't
> quite see how this can work given the nature of the URL returned by
> Eclipse. Maybe if I jar'd up the code it would work. Normally, when
> developing/debugging plug-ins in Eclipse the plug-in code is not jar'd.
>
> Thanks
> Martin
>
> Martin Bayly wrote:
>
>> Hi
>>
>> I've been trying to use the TopLink essentials JPA implementation in
>> an Eclipse Rich Client Platform application but I get the exception
>> below when I try and create an EntityManagerFactory.
>>
>> It seems that this is because the Eclipse plug-in environment
>> classloaders create URLs of the following form:
>>
>> bundleresource://3/META-INF/persistence.xml
>>
>> For example the above URL would be returned by a call to:
>>
>> ClassLoader loader = Thread.currentThread().getContextClassLoader();
>> Enumeration<URL> resources =
>> loader.getResources("META-INF/persistence.xml");
>>
>> There is code in PersistenceUnitProcessor that is using the context
>> class loader in this way to find resources for the persistence units
>> and this fails with the exception below because it is seems like it is
>> only expecting URLs with a file or jar protocol.
>>
>> [Out of interest the Hibernate JPA implementation seems to handle this
>> okay]
>>
>> Would you consider this a bug, or is it possible I'm doing something
>> wrong?
>>
>> Thanks
>> Martin
>>
>> Exception:
>>
>> java.lang.NullPointerException
>> at
>> oracle.toplink.essentials.ejb.cmp3.persistence.ArchiveFactoryImpl.createArchive(ArchiveFactoryImpl.java:64)
>>
>> at
>> oracle.toplink.essentials.ejb.cmp3.persistence.PersistenceUnitProcessor.findPersistenceArchives(PersistenceUnitProcessor.java:207)
>>
>> at
>> oracle.toplink.essentials.ejb.cmp3.persistence.PersistenceUnitProcessor.findPersistenceArchives(PersistenceUnitProcessor.java:190)
>>
>> at
>> oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.initialize(JavaSECMPInitializer.java:239)
>>
>> at
>> oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.initializeFromMain(JavaSECMPInitializer.java:278)
>>
>> at
>> oracle.toplink.essentials.internal.ejb.cmp3.JavaSECMPInitializer.getJavaSECMPInitializer(JavaSECMPInitializer.java:81)
>>
>> at
>> oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.createEntityManagerFactory(EntityManagerFactoryProvider.java:118)
>>
>> at
>> javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)
>>
>> at
>> javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
>>
>> at
>> testjpaplugintoplink.View$ViewContentProvider.getElements(View.java:77)
>> at
>> org.eclipse.jface.viewers.StructuredViewer.getRawChildren(StructuredViewer.java:927)
>>
>> at
>> org.eclipse.jface.viewers.TableViewer.getRawChildren(TableViewer.java:1279)
>>
>> at
>> org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:868)
>>
>> at
>> org.eclipse.jface.viewers.StructuredViewer.getSortedChildren(StructuredViewer.java:984)
>>
>> at
>> org.eclipse.jface.viewers.TableViewer.internalRefreshAll(TableViewer.java:870)
>>
>> at
>> org.eclipse.jface.viewers.TableViewer.internalRefresh(TableViewer.java:818)
>>
>> at
>> org.eclipse.jface.viewers.TableViewer.internalRefresh(TableViewer.java:807)
>>
>> at
>> org.eclipse.jface.viewers.StructuredViewer$7.run(StructuredViewer.java:1388)
>>
>> at
>> org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1323)
>>
>> at
>> org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1386)
>>
>> at
>> org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1345)
>>
>> at
>> org.eclipse.jface.viewers.TableViewer.inputChanged(TableViewer.java:767)
>> at
>> org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:250)
>> at
>> org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1542)
>>
>> at testjpaplugintoplink.View.createPartControl(View.java:189)
>> at
>> org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:332)
>>
>> at
>> org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:197)
>> at
>> org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:566)
>>
>> at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:290)
>> at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:525)
>> at
>> org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:140)
>>
>> at
>> org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:268)
>>
>> at
>> org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
>>
>> at
>> org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:394)
>>
>> at
>> org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1144)
>>
>> at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1097)
>> at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1311)
>> at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:601)
>> at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:532)
>> at
>> org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:562)
>>
>> at
>> org.eclipse.ui.internal.PerspectiveHelper.activate(PerspectiveHelper.java:244)
>>
>> at
>> org.eclipse.ui.internal.Perspective.onActivate(Perspective.java:815)
>> at
>> org.eclipse.ui.internal.WorkbenchPage.onActivate(WorkbenchPage.java:2429)
>> at
>> org.eclipse.ui.internal.WorkbenchWindow$6.run(WorkbenchWindow.java:2616)
>> at
>> org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
>> at
>> org.eclipse.ui.internal.WorkbenchWindow.setActivePage(WorkbenchWindow.java:2597)
>>
>> at
>> org.eclipse.ui.internal.WorkbenchWindow.busyOpenPage(WorkbenchWindow.java:658)
>>
>> at
>> org.eclipse.ui.internal.Workbench.busyOpenWorkbenchWindow(Workbench.java:795)
>>
>> at
>> org.eclipse.ui.internal.Workbench.doOpenFirstTimeWindow(Workbench.java:1437)
>>
>> at
>> org.eclipse.ui.internal.Workbench.openFirstTimeWindow(Workbench.java:1388)
>>
>> at
>> org.eclipse.ui.internal.WorkbenchConfigurer.openFirstTimeWindow(WorkbenchConfigurer.java:190)
>>
>> at
>> org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:708)
>>
>> at org.eclipse.ui.internal.Workbench.init(Workbench.java:1085)
>> at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1847)
>> at
>> org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:419)
>>
>> at
>> org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
>> at testjpaplugintoplink.Application.run(Application.java:18)
>> at
>> org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
>>
>> at
>> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
>>
>> at
>> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
>>
>> at
>> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
>>
>> at
>> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
>>
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>
>> at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>
>> at java.lang.reflect.Method.invoke(Method.java:585)
>> at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
>> at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
>> at org.eclipse.core.launcher.Main.run(Main.java:977)
>> at org.eclipse.core.launcher.Main.main(Main.java:952)
>>