Issue
I am getting following error while executing a unti test case(JUNIT).I am using it to understand the part of the project.Project is a web based project.Project is using OPENJPA
<openjpa-1.2.1-SNAPSHOT-r422266:686069 fatal store error> org.apache.openjpa.persistence.RollbackException: Unable to obtain a TransactionManager using null.
at org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:523)
at com.XYZ.cloud.admin.loadCatalog.LoadCatalogTest.populateOffering(LoadCatalogTest.java:253)
at com.XYZ.cloud.admin.loadCatalog.LoadCatalogTest.CatalogUploadTest(LoadCatalogTest.java:160)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:599)
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.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:44)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
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.ParentRunner.run(ParentRunner.java:220)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:45)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: <openjpa-1.2.1-SNAPSHOT-r422266:686069 nonfatal general error> org.apache.openjpa.persistence.PersistenceException: Unable to obtain a TransactionManager using null.
at org.apache.openjpa.jdbc.sql.DBDictionary.narrow(DBDictionary.java:4231)
at org.apache.openjpa.jdbc.sql.DBDictionary.newStoreException(DBDictionary.java:4196)
at org.apache.openjpa.jdbc.sql.DB2Dictionary.newStoreException(DB2Dictionary.java:503)
at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:102)
at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:88)
at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:64)
at org.apache.openjpa.jdbc.kernel.AbstractJDBCSeq.next(AbstractJDBCSeq.java:65)
at org.apache.openjpa.util.ImplHelper.generateValue(ImplHelper.java:160)
at org.apache.openjpa.util.ImplHelper.generateFieldValue(ImplHelper.java:144)
at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.assignField(JDBCStoreManager.java:698)
at org.apache.openjpa.util.ApplicationIds.assign(ApplicationIds.java:487)
at org.apache.openjpa.util.ApplicationIds.assign(ApplicationIds.java:463)
at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.assignObjectId(JDBCStoreManager.java:682)
at org.apache.openjpa.kernel.DelegatingStoreManager.assignObjectId(DelegatingStoreManager.java:134)
at org.apache.openjpa.kernel.StateManagerImpl.assignObjectId(StateManagerImpl.java:519)
at org.apache.openjpa.kernel.StateManagerImpl.preFlush(StateManagerImpl.java:2823)
at org.apache.openjpa.kernel.PNewState.beforeFlush(PNewState.java:39)
at org.apache.openjpa.kernel.StateManagerImpl.beforeFlush(StateManagerImpl.java:959)
at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1948)
at org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:1908)
at org.apache.openjpa.kernel.BrokerImpl.beforeCompletion(BrokerImpl.java:1826)
at org.apache.openjpa.kernel.LocalManagedRuntime.commit(LocalManagedRuntime.java:81)
at org.apache.openjpa.kernel.BrokerImpl.commit(BrokerImpl.java:1350)
at org.apache.openjpa.kernel.DelegatingBroker.commit(DelegatingBroker.java:877)
at org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:512)
... 26 more
Caused by: java.sql.SQLException: Unable to obtain a TransactionManager using null.
at org.apache.openjpa.jdbc.kernel.TableJDBCSeq.allocateSequence(TableJDBCSeq.java:419)
at org.apache.openjpa.jdbc.kernel.TableJDBCSeq.nextInternal(TableJDBCSeq.java:290)
at org.apache.openjpa.jdbc.kernel.AbstractJDBCSeq.next(AbstractJDBCSeq.java:60)
... 44 more
Caused by: javax.transaction.NotSupportedException: Unable to obtain a TransactionManager using null.
at org.apache.openjpa.ee.AutomaticManagedRuntime.doNonTransactionalWork(AutomaticManagedRuntime.java:306)
at org.apache.openjpa.jdbc.kernel.TableJDBCSeq.allocateSequence(TableJDBCSeq.java:415)
... 46 more
Caused by: <openjpa-1.2.1-SNAPSHOT-r422266:686069 fatal user error> org.apache.openjpa.util.InvalidStateException: Could not perform automatic lookup of EJB container's javax.transaction.TransactionManager implementation. Please ensure that you are running the application from within an EJB 1.1 compliant EJB container, and then set the org.apache.openjpa.ManagedRuntime property to
at org.apache.openjpa.ee.AutomaticManagedRuntime.getTransactionManager(AutomaticManagedRuntime.java:250)
at org.apache.openjpa.ee.AutomaticManagedRuntime.doNonTransactionalWork(AutomaticManagedRuntime.java:304)
... 47 more
Caused by: javax.naming.ConfigurationException: Name space accessor for the java: name space has not been set. Possible cause is that the user is specifying a java: URL name in a JNDI Context method call but is not running in a J2EE client or server environment.
at com.XYZ.ws.naming.java.javaURLContextFactory.isNameSpaceAccessable(javaURLContextFactory.java:93)
at com.XYZ.ws.naming.urlbase.UrlContextFactory.getObjectInstance(UrlContextFactory.java:82)
at javax.naming.spi.NamingManager.getURLContext(NamingManager.java:655)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:434)
at javax.naming.InitialContext.lookup(InitialContext.java:450)
at org.apache.openjpa.ee.RegistryManagedRuntime.getTransactionManager(RegistryManagedRuntime.java:61)
at org.apache.openjpa.ee.AutomaticManagedRuntime.getTransactionManager(AutomaticManagedRuntime.java:154)
... 48 more
Solution
My guess is that you are trying to use a persistence.xml declaring a jta-data-source in a unit test context (i.e. in a Java SE context).
In other words, you're not using an appropriate persistence.xml for a testing context. You need a specific persistence.xml using a RESOURCE_LOCAL transaction type and configure it to use a built-in connection pool (instead of a datasource).
Show your persistence.xml if you need more guidance.
Answered By - Pascal Thivent