[OPENJPA-1490] ClassNotFoundExceptions in an OSGi environment

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 2.0.0-beta
• Component/s: diagnostics, osgi
• Environment: OSGi
• Assignee: Unassigned
• Reporter: Timothy James Ward
• Created: 01/Feb/10 14:32
• Updated: 24/Feb/10 18:19

Description

OpenJPA is available packaged as an OSGi bundle, and specifies several optional package imports, for example the serp packages.

When calling createContainerEntityManagerFactory() these imports are no longer optional, and NoClassDefFoundErrors are generated. These exceptions should be handled more gracefully, rather than simply being thrown back to the user.

Examples follow:

java.lang.NoClassDefFoundError: javax.transaction.Synchronization
at java.lang.ClassLoader.defineClassImpl(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:265)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:183)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:576)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:546)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:477)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass_LockClassLoader(ClasspathManager.java:465)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:445)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:211)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:376)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:452)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:405)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:393)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
at java.lang.ClassLoader.loadClass(ClassLoader.java:609)
at java.lang.ClassLoader.defineClassImpl(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:265)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:183)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:576)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:546)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:477)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass_LockClassLoader(ClasspathManager.java:465)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:445)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:211)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:376)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:452)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:405)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:393)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
at java.lang.ClassLoader.loadClass(ClassLoader.java:609)
at java.lang.J9VMInternals.verifyImpl(Native Method)
at java.lang.J9VMInternals.verify(J9VMInternals.java:72)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:134)
at org.apache.openjpa.conf.OpenJPAConfigurationImpl.<init>(OpenJPAConfigurationImpl.java:221)
at org.apache.openjpa.conf.OpenJPAConfigurationImpl.<init>(OpenJPAConfigurationImpl.java:195)
at org.apache.openjpa.conf.OpenJPAConfigurationImpl.<init>(OpenJPAConfigurationImpl.java:186)
at org.apache.openjpa.persistence.PersistenceProviderImpl.newConfigurationImpl(PersistenceProviderImpl.java:230)
at org.apache.openjpa.persistence.PersistenceProviderImpl.createContainerEntityManagerFactory(PersistenceProviderImpl.java:166)
at org.apache.openjpa.persistence.PersistenceProviderImpl.createContainerEntityManagerFactory(PersistenceProviderImpl.java:62)
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.createEntityManagerFactories(EntityManagerFactoryManager.java:227)
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.bundleStateChange(EntityManagerFactoryManager.java:121)
at org.apache.aries.jpa.container.impl.PersistenceBundleManager.modifiedBundle(PersistenceBundleManager.java:197)
at org.apache.aries.util.tracker.MultiBundleTracker$InternalBundleTracker.modifiedBundle(MultiBundleTracker.java:108)
at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:453)
at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:237)
at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:413)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:916)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:220)
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:149)
at org.eclipse.osgi.framework.internal.core.Framework.publishBundleEventPrivileged(Framework.java:1350)
at org.eclipse.osgi.framework.internal.core.Framework.publishBundleEvent(Framework.java:1301)
at org.eclipse.osgi.framework.internal.core.BundleHost.stopWorker(BundleHost.java:490)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.suspend(AbstractBundle.java:546)
at org.eclipse.osgi.framework.internal.core.Framework.suspendBundle(Framework.java:1098)
at org.eclipse.osgi.framework.internal.core.PackageAdminImpl.suspendBundle(PackageAdminImpl.java:314)
at org.eclipse.osgi.framework.internal.core.PackageAdminImpl.processDelta(PackageAdminImpl.java:460)
at org.eclipse.osgi.framework.internal.core.PackageAdminImpl.doResolveBundles(PackageAdminImpl.java:241)
at org.eclipse.osgi.framework.internal.core.PackageAdminImpl$1.run(PackageAdminImpl.java:176)
at java.lang.Thread.run(Thread.java:735)
Caused by: java.lang.ClassNotFoundException: javax.transaction.Synchronization
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:489)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:405)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:393)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
at java.lang.ClassLoader.loadClass(ClassLoader.java:609)
... 59 more

java.lang.NoClassDefFoundError: serp.util.Strings
at org.apache.openjpa.lib.conf.Configurations.newInstance(Configurations.java:200)
at org.apache.openjpa.lib.conf.ObjectValue.newInstance(ObjectValue.java:124)
at org.apache.openjpa.lib.conf.PluginValue.instantiate(PluginValue.java:103)
at org.apache.openjpa.lib.conf.ObjectValue.instantiate(ObjectValue.java:83)
at org.apache.openjpa.lib.conf.ConfigurationImpl.getLogFactory(ConfigurationImpl.java:209)
at org.apache.openjpa.lib.conf.ConfigurationImpl.getLog(ConfigurationImpl.java:226)
at org.apache.openjpa.conf.OpenJPAConfigurationImpl.getConfigurationLog(OpenJPAConfigurationImpl.java:1600)
at org.apache.openjpa.lib.conf.ConfigurationImpl.loadGlobals(ConfigurationImpl.java:191)
at org.apache.openjpa.conf.OpenJPAConfigurationImpl.<init>(OpenJPAConfigurationImpl.java:584)
at org.apache.openjpa.conf.OpenJPAConfigurationImpl.<init>(OpenJPAConfigurationImpl.java:195)
at org.apache.openjpa.conf.OpenJPAConfigurationImpl.<init>(OpenJPAConfigurationImpl.java:186)
at org.apache.openjpa.persistence.PersistenceProviderImpl.newConfigurationImpl(PersistenceProviderImpl.java:230)
at org.apache.openjpa.persistence.PersistenceProviderImpl.createContainerEntityManagerFactory(PersistenceProviderImpl.java:166)
at org.apache.openjpa.persistence.PersistenceProviderImpl.createContainerEntityManagerFactory(PersistenceProviderImpl.java:62)
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.createEntityManagerFactories(EntityManagerFactoryManager.java:227)
at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.bundleStateChange(EntityManagerFactoryManager.java:121)
at org.apache.aries.jpa.container.impl.PersistenceBundleManager.modifiedBundle(PersistenceBundleManager.java:197)
at org.apache.aries.util.tracker.MultiBundleTracker$InternalBundleTracker.modifiedBundle(MultiBundleTracker.java:108)
at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:453)
at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:237)
at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:413)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:916)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:220)
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:149)
at org.eclipse.osgi.framework.internal.core.Framework.publishBundleEventPrivileged(Framework.java:1350)
at org.eclipse.osgi.framework.internal.core.Framework.publishBundleEvent(Framework.java:1301)
at org.eclipse.osgi.framework.internal.core.BundleHost.stopWorker(BundleHost.java:490)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.suspend(AbstractBundle.java:546)
at org.eclipse.osgi.framework.internal.core.Framework.suspendBundle(Framework.java:1098)
at org.eclipse.osgi.framework.internal.core.PackageAdminImpl.suspendBundle(PackageAdminImpl.java:314)
at org.eclipse.osgi.framework.internal.core.PackageAdminImpl.processDelta(PackageAdminImpl.java:460)
at org.eclipse.osgi.framework.internal.core.PackageAdminImpl.doResolveBundles(PackageAdminImpl.java:241)
at org.eclipse.osgi.framework.internal.core.PackageAdminImpl$1.run(PackageAdminImpl.java:176)
at java.lang.Thread.run(Thread.java:735)
Caused by: java.lang.ClassNotFoundException: serp.util.Strings
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:489)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:405)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:393)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
at java.lang.ClassLoader.loadClass(ClassLoader.java:609)
... 34 more

Obviously there is no problem if the package imports are satisfied, but it would be nice to have a clear error message indicating that no container-managed JPA is possible without these packages.