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POEclipse RCP throws exception when I try to use JPA for local data storage
 

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  1. POEclipse RCP throws exception when I try to use JPA for local data storage
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    <p>I have the following code in my RCP application:</p> <pre><code>EntityManagerFactory emf = Persistence.createEntityManagerFactory("todos"); EntityManager em = emf.createEntityManager(); Query q = em.createQuery("select t from Todo t"); @SuppressWarnings("unchecked") List&lt;Todo&gt; todos = (List&lt;Todo&gt;)q.getResultList(); </code></pre> <p>My config is META-INF/persistence.xml and contains:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8" ?&gt; &lt;persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" version="2.0" xmlns="http://java.sun.com/xml/ns/persistence"&gt; &lt;persistence-unit name="todos" transaction-type="RESOURCE_LOCAL"&gt; &lt;class&gt;foo.bar.Todo&lt;/class&gt; &lt;properties&gt; &lt;property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.EmbeddedDriver" /&gt; &lt;property name="javax.persistence.jdbc.url" value="jdbc:derby:/home/pocon64/myDb;create=true" /&gt; &lt;property name="javax.persistence.jdbc.user" value="test" /&gt; &lt;property name="javax.persistence.jdbc.password" value="test" /&gt; &lt;!-- EclipseLink should create the database schema automatically --&gt; &lt;property name="eclipselink.ddl-generation" value="create-tables" /&gt; &lt;property name="eclipselink.ddl-generation.output-mode" value="database" /&gt; &lt;/properties&gt; &lt;/persistence-unit&gt; &lt;/persistence&gt; </code></pre> <p>When I try to run the application, it starts fine, but displays the error:</p> <pre><code>Could not create the view: Exception Description: An exception was thrown while searching for persistence archives with ClassLoader: org.eclipse.core.runtime.internal.adaptor.ContextFinder@4b51ac10 Internal Exception: Exception [EclipseLink-30009] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException Exception Description: An exception was thrown while trying to load persistence unit at url: bundleresource://51.fwk2013125681:10 Internal Exception: Exception [EclipseLink-30004] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException Exception Description: An exception was thrown while processing persistence.xml from URL: bundleresource://51.fwk2013125681:10 Internal Exception: (1. URI was not reported to parser for entity [document]) </code></pre> <p>The db file isn't created at all. Any ideas what's causing this?</p> <p>ADDITION: Full stack trace below:</p> <pre><code>Local Exception Stack: Exception [EclipseLink-30009] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException Exception Description: An exception was thrown while trying to load persistence unit at url: bundleresource://51.fwk998462082:10 Internal Exception: Exception [EclipseLink-30004] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException Exception Description: An exception was thrown while processing persistence.xml from URL: bundleresource://51.fwk998462082:10 Internal Exception: (1. URI was not reported to parser for entity [document]) at org.eclipse.persistence.exceptions.PersistenceUnitLoadingException.exceptionLoadingFromUrl(PersistenceUnitLoadingException.java:100) at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processPersistenceArchive(PersistenceUnitProcessor.java:538) at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.getPersistenceUnits(PersistenceUnitProcessor.java:444) at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.findPersistenceUnitInfoInArchive(JPAInitializer.java:172) at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.findPersistenceUnitInfoInArchives(JPAInitializer.java:154) at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.findPersistenceUnitInfo(JPAInitializer.java:135) at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:73) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60) at com.diligentgaming.dcm.workstation.plugins.core.dashboard.DashboardView.createPartControl(DashboardView.java:64) at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:375) at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:229) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595) at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:313) at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:534) at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180) at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270) at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65) at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473) at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1245) at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1198) at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1597) at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:643) at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:570) at org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:568) at org.eclipse.ui.internal.PerspectiveHelper.activate(PerspectiveHelper.java:272) at org.eclipse.ui.internal.Perspective.onActivate(Perspective.java:981) at org.eclipse.ui.internal.WorkbenchPage.onActivate(WorkbenchPage.java:2714) at org.eclipse.ui.internal.WorkbenchWindow$28.run(WorkbenchWindow.java:3030) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchWindow.setActivePage(WorkbenchWindow.java:3011) at org.eclipse.ui.internal.WorkbenchWindow.busyOpenPage(WorkbenchWindow.java:799) at org.eclipse.ui.internal.Workbench$23.runWithException(Workbench.java:1229) at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3938) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3615) at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:803) at org.eclipse.ui.internal.Workbench$33.runWithException(Workbench.java:1600) at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3938) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3615) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2609) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at com.diligentgaming.dcm.workstation.plugins.core.Application.start(Application.java:20) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) 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:597) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577) at org.eclipse.equinox.launcher.Main.run(Main.java:1410) at org.eclipse.equinox.launcher.Main.main(Main.java:1386) Caused by: Exception [EclipseLink-30004] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException Exception Description: An exception was thrown while processing persistence.xml from URL: bundleresource://51.fwk998462082:10 Internal Exception: (1. URI was not reported to parser for entity [document]) at org.eclipse.persistence.exceptions.PersistenceUnitLoadingException.exceptionProcessingPersistenceXML(PersistenceUnitLoadingException.java:118) at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processPersistenceXML(PersistenceUnitProcessor.java:587) at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processPersistenceArchive(PersistenceUnitProcessor.java:536) ... 63 more Caused by: (1. URI was not reported to parser for entity [document]) at org.eclipse.persistence.internal.jpa.deployment.xml.parser.XMLExceptionHandler.error(XMLExceptionHandler.java:28) at org.eclipse.persistence.internal.jpa.deployment.xml.parser.XMLExceptionHandler.warning(XMLExceptionHandler.java:23) at gnu.xml.aelfred2.SAXDriver.warn(SAXDriver.java:935) at gnu.xml.aelfred2.SAXDriver.startExternalEntity(SAXDriver.java:631) at gnu.xml.aelfred2.XmlParser.pushURL(XmlParser.java:3358) at gnu.xml.aelfred2.XmlParser.doParse(XmlParser.java:159) at gnu.xml.aelfred2.SAXDriver.parse(SAXDriver.java:320) at gnu.xml.aelfred2.XmlReader.parse(XmlReader.java:294) at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processPersistenceXML(PersistenceUnitProcessor.java:577) ... 64 more&lt;/code&gt; </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. UStheZenPebble
    1. UStheZenPebble
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COcan you include the full stack trace, have you tried the same persistence unit in a non OSGi environment?
      singulars
      1. POEclipse RCP throws exception when I try to use JPA for local data storage
      1. USJames
    2. COHi James, I haven't tried in a non-OSGi environment, and this is the full stack trace. It looks like my persistence.xml is somehow at fault, but I'm not sure how, it looks OK to me.
      singulars
      1. POEclipse RCP throws exception when I try to use JPA for local data storage
      1. UStheZenPebble
 

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