Hi,
I have setup a little project with aries blueprint + jpa and eclipselink
(with aries.eclipselink.adapter). Backend is Derby embedded driver. I
have tree bundles, a datasource bundle for derby
(ch.eugster.herakles.datasource.derby), a jpa persistence bundle
(ch.eugster.herakles.persistence) with persistence.xml, orm.xml and
persistence classes (Tectonic, TectonicsLevel, TectonicsLevelLink) and a
junit test bundle (ch.eugster.herakles.persistence.test).
The testclass contains two testmethods so far, one checks if a
TectonicsService exists (testValidService) and a method that tries to
persist an object of type Tectonic (testPersist). Running the test, the
first method passes, but the second throws the following message:
[code]
java.lang.LinkageError: loader constraint violation: when resolving
interface method
"javax.transaction.Transaction.enlistResource(Ljavax/transaction/xa/XAResource;)Z"
the class loader (instance of
org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) of the current
class, org/apache/aries/transaction/jdbc/XADatasourceEnlistingWrapper,
and the class loader (instance of
org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) for resolved
class, javax/transaction/Transaction, have different Class objects for
the type javax/transaction/xa/XAResource used in the signature
at
org.apache.aries.transaction.jdbc.XADatasourceEnlistingWrapper.enlist(XADatasourceEnlistingWrapper.java:102)
at
org.apache.aries.transaction.jdbc.XADatasourceEnlistingWrapper.getConnection(XADatasourceEnlistingWrapper.java:65)
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.apache.aries.proxy.impl.ProxyHandler$1.invoke(ProxyHandler.java:54)
at
org.apache.aries.proxy.impl.ProxyHandler.invoke(ProxyHandler.java:119)
at $Proxy15.getConnection(Unknown Source)
at
org.apache.aries.jpa.container.unit.impl.DelayedLookupDataSource.getConnection(DelayedLookupDataSource.java:36)
at
org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:123)
at
org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162)
at
org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connectInternal(DatasourceAccessor.java:330)
at
org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.connectInternal(DatabaseAccessor.java:295)
at
org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connect(DatasourceAccessor.java:418)
at
org.eclipse.persistence.sessions.server.ConnectionPool.buildConnection(ConnectionPool.java:216)
at
org.eclipse.persistence.sessions.server.ExternalConnectionPool.startUp(ExternalConnectionPool.java:146)
at
org.eclipse.persistence.sessions.server.ServerSession.connect(ServerSession.java:489)
at
org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:639)
at
org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:214)
at
org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:500)
at
org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getDatabaseSession(EntityManagerFactoryDelegate.java:189)
at
org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:278)
at
org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:304)
at
org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:289)
at
org.apache.aries.jpa.container.impl.CountingEntityManagerFactory.createEntityManager(CountingEntityManagerFactory.java:71)
at
org.apache.aries.jpa.container.context.transaction.impl.JTAPersistenceContextRegistry.getCurrentPersistenceContext(JTAPersistenceContextRegistry.java:152)
at
org.apache.aries.jpa.container.context.transaction.impl.JTAEntityManager.getPersistenceContext(JTAEntityManager.java:84)
at
org.apache.aries.jpa.container.context.transaction.impl.JTAEntityManager.persist(JTAEntityManager.java:278)
at
ch.eugster.herakles.persistence.internal.service.AbstractEntityServiceComponent.persist(AbstractEntityServiceComponent.java:104)
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.apache.aries.proxy.impl.ProxyHandler$1.invoke(ProxyHandler.java:54)
at
org.apache.aries.proxy.impl.ProxyHandler.invoke(ProxyHandler.java:119)
at $Proxy6.persist(Unknown Source)
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.apache.aries.proxy.impl.ProxyHandler$1.invoke(ProxyHandler.java:54)
at
org.apache.aries.proxy.impl.ProxyHandler.invoke(ProxyHandler.java:119)
at $Proxy6.persist(Unknown Source)
at
ch.eugster.herakles.persistence.test.TestCase.testPersist(TestCase.java:57)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at
org.eclipse.pde.internal.junit.runtime.RemotePluginTestRunner.main(RemotePluginTestRunner.java:62)
at
org.eclipse.pde.internal.junit.runtime.CoreTestApplication.run(CoreTestApplication.java:23)
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.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:587)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:198)
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:353)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
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:629)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
at org.eclipse.equinox.launcher.Main.main(Main.java:1414)
[/code]
I understand, that there is a classloader issue but I don't know why it
comes up and how I can resolve this problem. May anyone give me a hint?
Thank you!
