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From Ivo Leitão (JIRA) <j...@apache.org>
Subject [jira] [Updated] (ARIES-1511) NullPointer exception while using hibernate 5.1 with Aries JPA
Date Tue, 29 Mar 2016 11:15:25 GMT

     [ https://issues.apache.org/jira/browse/ARIES-1511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ivo Leitão updated ARIES-1511:
------------------------------
    Environment: Linux; jdk18, Oracle 11g, Felix  (was: Linux; jdk18, Oracle 11g)

> NullPointer exception while using hibernate 5.1 with Aries JPA
> --------------------------------------------------------------
>
>                 Key: ARIES-1511
>                 URL: https://issues.apache.org/jira/browse/ARIES-1511
>             Project: Aries
>          Issue Type: Bug
>          Components: JPA
>    Affects Versions: jpa-2.3.0
>         Environment: Linux; jdk18, Oracle 11g, Felix
>            Reporter: Ivo Leitão
>
> Hi !!
> I was applying Christian Schneider example of Declarative services with JPA (example
available on github at https://github.com/cschneider/Karaf-Tutorial/blob/master/tasklist-ds)
and found a problem with hibernate 5.1 and a oracle datasource (I'm using pax-jdbc with dbcp2
pool). 
> I'm getting a NPE in hibernate as show bellow. Since this was blocking me I tracked the
issue and apparently found the cause.
> The culprit is on the following class https://github.com/pferraro/hibernate-core/blob/master/hibernate-core/src/main/java/org/hibernate/hql/spi/id/IdTableHelper.java
at line 77
> Statement statement = connection.createStatement(); 
> The line above returns null which causes a NPE at line 91 which issues the following
code statement:
> statement.close();
> To correct this I've changed https://github.com/ivoleitao/aries/blob/trunk/jpa/jpa-container/src/main/java/org/apache/aries/jpa/container/weaving/impl/DummyDataSource.java
> And added the following check on the method proxyClasses
> if (type == Statement.class) {
>    return createProxy(classLoader, Statement.class);
> }
> This fixed this issue (the exception does not appear anymore)
> STACKTRACE
> javax.persistence.PersistenceException: [PersistenceUnit: sso] Unable to build Hibernate
SessionFactory
> 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:954)
> 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:884)
> 	at org.hibernate.osgi.OsgiPersistenceProvider.createContainerEntityManagerFactory(OsgiPersistenceProvider.java:95)
> 	at org.apache.aries.jpa.container.impl.PersistenceProviderTracker.createAndCloseDummyEMF(PersistenceProviderTracker.java:105)
> 	at org.apache.aries.jpa.container.impl.PersistenceProviderTracker.addingService(PersistenceProviderTracker.java:85)
> 	at org.apache.aries.jpa.container.impl.PersistenceProviderTracker.addingService(PersistenceProviderTracker.java:44)
> 	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:941)
> 	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:870)
> 	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
> 	at org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183)
> 	at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:318)
> 	at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:261)
> 	at org.apache.aries.jpa.container.impl.PersistenceBundleTracker.trackProvider(PersistenceBundleTracker.java:106)
> 	at org.apache.aries.jpa.container.impl.PersistenceBundleTracker.findPersistenceUnits(PersistenceBundleTracker.java:90)
> 	at org.apache.aries.jpa.container.impl.PersistenceBundleTracker.addingBundle(PersistenceBundleTracker.java:69)
> 	at org.apache.aries.jpa.container.impl.PersistenceBundleTracker.addingBundle(PersistenceBundleTracker.java:40)
> 	at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:469)
> 	at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:415)
> 	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
> 	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)
> 	at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:444)
> 	at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:916)
> 	at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:835)
> 	at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:517)
> 	at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4541)
> 	at org.apache.felix.framework.Felix.activateBundle(Felix.java:2216)
> 	at org.apache.felix.framework.Felix.startBundle(Felix.java:2144)
> 	at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:998)
> 	at aQute.launcher.Launcher.update(Launcher.java:502)
> 	at aQute.launcher.Launcher.activate(Launcher.java:400)
> 	at aQute.launcher.Launcher.run(Launcher.java:283)
> 	at aQute.launcher.Launcher.main(Launcher.java:133)
> Caused by: java.lang.NullPointerException: null
> 	at org.hibernate.hql.spi.id.IdTableHelper.executeIdTableCreationStatements(IdTableHelper.java:91)
> 	at org.hibernate.hql.spi.id.global.GlobalTemporaryTableBulkIdStrategy.finishPreparation(GlobalTemporaryTableBulkIdStrategy.java:125)
> 	at org.hibernate.hql.spi.id.global.GlobalTemporaryTableBulkIdStrategy.finishPreparation(GlobalTemporaryTableBulkIdStrategy.java:42)
> 	at org.hibernate.hql.spi.id.AbstractMultiTableBulkIdStrategyImpl.prepare(AbstractMultiTableBulkIdStrategyImpl.java:88)
> 	at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:451)
> 	at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:465)
> 	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:881)
> 	... 30 common frames omitted



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