Hazelcast-hibernate on apache karaf

[Ahmedin Yimer]

Hi,

We are developing an osgi bundle with hibernate, which is deployed on the apache karaf 3.0.2. We have a clustered environment.

 And as L2 caching provider, we were trying to use Hazelcast, But we are not able to get it working.

 We are getting "Unable to load com.hazelcast.hibernate.HazelcastCacheRegionFactory " error

Here is what we are doing:

1. In persistence.xml

  <property name="hibernate.cache.use_second_level_cache" value="true"/>

  <property name="hibernate.cache.use_query_cache" value="false" />

 <property name="hibernate.cache.use_minimal_puts" value="true" />

 <property name="hibernate.cache.region.factory_class" value="com.hazelcast.hibernate.HazelcastCacheRegionFactory" />

2. in pom.xml

<dependency>

<groupId>com.hazelcast</groupId>

<artifactId>hazelcast-hibernate</artifactId>

<version>xxx</version>

<scope>runtime</scope>

</dependency>

3. in features.xml

 <bundle>wrap:mvn:com.hazelcast/hazelcast-hibernate/xxx</bundle>

Are we missing anything? Please help...

Thanks

[Enes Akar]

do you have hazelcast core in your dependencies?

<dependency> <groupId>com.hazelcast</groupId> <artifactId>hazelcast</artifactId> <version>3.4</version> </dependency>

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en...@hazelcast.com 
mob : +905071505671
@enesakar

[Ahmedin Yimer]

Thank you the replay!

Yes...we do have the hazelcast core in our dependencies....

<dependency>

        <groupId>com.hazelcast</groupId>

        <artifactId>hazelcast</artifactId>

        <version>3.4</version>

    </dependency>

    <dependency>

<groupId>com.hazelcast</groupId>

<artifactId>hazelcast-hibernate4</artifactId>

<version>3.0</version>

</dependency>

This is the actual error we are getting....

karaf@root()> restart 98

ERROR: Bundle org.apache.aries.jpa.container [72] EventDispatcher: Error during dispatch. (javax.persistence.PersistenceException: [PersistenceUnit: nletsPU] Unable to b

javax.persistence.PersistenceException: [PersistenceUnit: nletsPU] Unable to build EntityManagerFactory

        at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:924)

        at org.hibernate.osgi.OsgiPersistenceProvider.createContainerEntityManagerFactory(OsgiPersistenceProvider.java:99)

        at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.createEntityManagerFactories(EntityManagerFactoryManager.java:329)

        at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.registerEntityManagerFactories(EntityManagerFactoryManager.java:242)

        at org.apache.aries.jpa.container.impl.EntityManagerFactoryManager.bundleStateChange(EntityManagerFactoryManager.java:185)

        at org.apache.aries.jpa.container.impl.PersistenceBundleManager.setupManager(PersistenceBundleManager.java:394)

        at org.apache.aries.jpa.container.impl.PersistenceBundleManager.addingService(PersistenceBundleManager.java:209)

        at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932)

        at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864)

        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.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:894)

        at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:932)

        at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)

        at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)

        at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4419)

        at org.apache.felix.framework.Felix.registerService(Felix.java:3423)

        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)

        at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:320)

        at org.hibernate.osgi.HibernateBundleActivator.start(HibernateBundleActivator.java:80)

        at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:645)

        at org.apache.felix.framework.Felix.activateBundle(Felix.java:2146)

        at org.apache.felix.framework.Felix.startBundle(Felix.java:2064)

        at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:955)

        at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:942)

        at org.apache.karaf.bundle.command.Restart.doExecute(Restart.java:48)

        at org.apache.karaf.bundle.command.BundlesCommand.doExecute(BundlesCommand.java:50)

        at org.apache.karaf.bundle.command.BundlesCommandWithConfirmation.doExecute(BundlesCommandWithConfirmation.java:41)

        at org.apache.karaf.shell.console.AbstractAction.execute(AbstractAction.java:33)

        at org.apache.karaf.shell.console.OsgiCommandSupport.execute(OsgiCommandSupport.java:39)

        at org.apache.karaf.shell.commands.basic.AbstractCommand.execute(AbstractCommand.java:33)

        at Proxy194b83fb_3c13_445e_a0a7_e93cda4c34b5.execute(Unknown Source)

        at Proxy194b83fb_3c13_445e_a0a7_e93cda4c34b5.execute(Unknown Source)

        at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:78)

        at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:477)

        at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:403)

        at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)

        at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:183)

        at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:120)

        at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:92)

        at org.apache.karaf.shell.console.impl.jline.ConsoleImpl.run(ConsoleImpl.java:203)

        at org.apache.karaf.shell.console.impl.jline.LocalConsoleManager$2$1$1.run(LocalConsoleManager.java:115)

        at java.security.AccessController.doPrivileged(Native Method)

        at org.apache.karaf.jaas.modules.JaasHelper.doAs(JaasHelper.java:57)

        at org.apache.karaf.shell.console.impl.jline.LocalConsoleManager$2$1.run(LocalConsoleManager.java:108)

Caused by: org.hibernate.HibernateException: could not instantiate RegionFactory [com.hazelcast.hibernate.HazelcastCacheRegionFactory]

        at org.hibernate.cfg.SettingsFactory.createRegionFactory(SettingsFactory.java:501)

        at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:289)

        at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2335)

        at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2331)

        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1767)

        at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:96)

        at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:914)

        ... 44 more

Caused by: org.hibernate.service.classloading.spi.ClassLoadingException: Unable to load class [com.hazelcast.hibernate.HazelcastCacheRegionFactory]

        at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:149)

        at org.hibernate.cfg.SettingsFactory.createRegionFactory(SettingsFactory.java:484)

        ... 50 more

Caused by: java.lang.ClassNotFoundException: Could not load requested class : com.hazelcast.hibernate.HazelcastCacheRegionFactory

        at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl$AggregatedClassLoader.findClass(ClassLoaderServiceImpl.java:296)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:425)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)

        at java.lang.Class.forName0(Native Method)

        at java.lang.Class.forName(Class.java:274)

        at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:146)

        ... 51 more

karaf@root()>

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