Unable to instantiate Scanner class - Hibernate 3.x deployment fails with WildFly

[begert]

I have a legacy Ear-Project that used Hibernate 3.6.6.Final (from JBoss6).

Now I would like to deploy that Ear into Wildfly.

I did everything mentioned here: Sharing the Hibernate 3.5 or greater JPA persistence provider between multiple applications

My persistence.xml looks like this:

    <?xml version="1.0" encoding="UTF-8"?>

    <persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0">

        <persistence-unit name="pu">

            <description></description>

            <provider>org.hibernate.ejb.HibernatePersistence</provider>

            <jta-data-source>java:/OracleDS</jta-data-source>

            <properties>

                <property name="jboss.as.jpa.providerModule" value="org.hibernate:3" />

                <property name="hibernate.session_factory_name" value="hibernate/HelperSessionFactory" />

                <property name="hibernate.session_factory_name_is_jndi" value="true" />

            </properties>

        </persistence-unit>

    </persistence>

I added

Dependencies: org.hibernate:3

to the MANIFEST.MF

But the Deployment fails with the following error:

    17:03:13,125 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 52) MSC000001: Failed to start service jboss.persistenceunit."HelperEJB.ear/HelperEJB.jar#pu": org.jboss.msc.service.StartException in service jboss.persistenceunit."HelperEJB.ear/HelperEJB.jar#pu": javax.persistence.PersistenceException: [PersistenceUnit: pu] Unable to instantiate Scanner class: class org.jboss.as.jpa.hibernate3.HibernateAnnotationScanner

            at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:172) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

            at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:117) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

            at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.8.0]

            at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:474)

            at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:182) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0]

            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0]

            at java.lang.Thread.run(Thread.java:744) [rt.jar:1.8.0]

            at org.jboss.threads.JBossThread.run(JBossThread.java:122)

    Caused by: javax.persistence.PersistenceException: [PersistenceUnit: pu] Unable to instantiate Scanner class: class org.jboss.as.jpa.hibernate3.HibernateAnnotationScanner

            at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:1225)

            at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.locateOrBuildScanner(EntityManagerFactoryBuilderImpl.java:767)

            at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.scan(EntityManagerFactoryBuilderImpl.java:720)

            at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:219)

            at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:186)

            at org.hibernate.jpa.boot.spi.Bootstrap.getEntityManagerFactoryBuilder(Bootstrap.java:45)

            at org.hibernate.jpa.boot.spi.Bootstrap.getEntityManagerFactoryBuilder(Bootstrap.java:57)

            at org.hibernate.jpa.HibernatePersistenceProvider.createContainerEntityManagerFactory(HibernatePersistenceProvider.java:150)

            at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:67) [hibernate-entitymanager.jar:3.6.6.Final]

            at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:318) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

            at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.access$1100(PersistenceUnitServiceImpl.java:67) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

            at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:167) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

            ... 8 more

    Caused by: java.lang.ClassCastException: org.jboss.as.jpa.hibernate3.HibernateAnnotationScanner cannot be cast to org.hibernate.jpa.boot.scan.spi.Scanner

            at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.locateOrBuildScanner(EntityManagerFactoryBuilderImpl.java:764)

            ... 18 more

I can't figure out what I'm doing wrong!

[smarlow]

Do you have Hibernate jars in your HelperEJB.ear?

Please show us the contents of your wildfly-8.0.0.Final/modules/system/layers/base/org/hibernate/3 folder and the contents of the wildfly-8.0.0.Final/modules/system/layers/base/org/hibernate/3/module.xml file.

Please enable TRACE logging for org.jboss.as.jpa (how to is here) and post the deployment output here.

[begert]

Thanks for your answer!

I copied the three jars from our actual JBoss (JBossAS [6.1.0.Final "Neo"]) from the directory commons\lib into the hibernate/3 module.

This jars i have copied into E:\wildfly-8.0.0.Final\modules\system\layers\base\org\hibernate\3

This is the content of module.xml:

<module xmlns="urn:jboss:module:1.1" name="org.hibernate" slot="3">

    <resources>

        <resource-root path="jipijapa-hibernate3-1.0.1.Final.jar"/>

        <resource-root path="hibernate-core.jar"/>

        <resource-root path="hibernate-commons-annotations.jar"/>

        <resource-root path="hibernate-entitymanager.jar"/>

    </resources>

    <dependencies>

        <module name="asm.asm"/>

        <module name="javax.api"/>

        <module name="javax.annotation.api"/>

        <module name="javax.enterprise.api"/>

        <module name="javax.persistence.api"/>

        <module name="javax.transaction.api"/>

        <module name="javax.validation.api"/>

        <module name="javax.xml.bind.api"/>

        <module name="org.antlr"/>

        <module name="org.apache.commons.collections"/>

        <module name="org.dom4j"/>

        <module name="org.javassist"/>

        <module name="org.jboss.as.jpa.spi"/>

        <module name="org.jboss.as.jpa.util"/>

        <module name="org.jboss.jandex"/>

        <module name="org.jboss.logging"/>

        <module name="org.jboss.vfs"/>

    </dependencies>

</module>

Here is the full log from the Deployment with TRACE enabled: gist:3e2280c00c10e6acd76b

[smarlow]

In the TRACE output, I can see that we are using Hibernate 4.3.1 jars instead of 3.6.6.  I created WFLY-3074 for this bug.

We have a unit test that bundles the Hibernate 3.6.x jars with the deployment and that passes.  I have a new local unit test that seems to recreate your issue as well.

Thanks for reporting this.

Scott

[begert]

Thanks Scott!

I tried to bundle Hibernate 3 with my EAR as a workaround.

This works, but now I have another problem when I try to rename the SessionFactory-Name like this

     <property name="hibernate.session_factory_name" value="hibernate/HelperSessionFactory" />

     <property name="hibernate.session_factory_name_is_jndi" value="true" />

This throws a NullPointer here

10:21:58,009 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 54) MSC000001: Failed to start service jboss.persistenceunit."HelperEJB.ear/HelperEJB.jar#pu": org.jboss.msc.service.StartException in service jboss.persistenceunit."HelperEJB.ear/HelperEJB.jar#pu": java.lang.NullPointerException

        at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:172) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

        at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:117) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

        at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.8.0]

        at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:474)

        at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:182) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0]

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0]

        at java.lang.Thread.run(Thread.java:744) [rt.jar:1.8.0]

        at org.jboss.threads.JBossThread.run(JBossThread.java:122)

Caused by: java.lang.NullPointerException

        at org.jboss.as.naming.WritableServiceBasedNamingStore.rebind(WritableServiceBasedNamingStore.java:120)

        at org.jboss.as.naming.NamingContext.rebind(NamingContext.java:274)

        at org.hibernate.util.NamingHelper.bind(NamingHelper.java:97) [hibernate-core.jar:3.6.6.Final]

        at org.hibernate.impl.SessionFactoryObjectFactory.addInstance(SessionFactoryObjectFactory.java:113) [hibernate-core.jar:3.6.6.Final]

        at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:367) [hibernate-core.jar:3.6.6.Final]

        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1872) [hibernate-core.jar:3.6.6.Final]

        at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:906) [hibernate-entitymanager.jar:3.6.6.Final]

        at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:74) [hibernate-entitymanager.jar:3.6.6.Final]

        at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:318) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

        at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.access$1100(PersistenceUnitServiceImpl.java:67) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

        at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:167) [wildfly-jpa-8.0.0.Final.jar:8.0.0.Final]

        ... 8 more

[smarlow]

What happens if you change to:

<property name="hibernate.session_factory_name" value="HelperSessionFactory" />

If you feel like building WildFly from my branch, it might be interesting to see if that helps you with creating the Hibernate 3 static module.  I was able to get my unit test working with this change.

[smarlow]

You can also watch the pull request link.  When that is merged + closed, you can grab the nightly build on the next day to try the change.  The WildFly nightly build is available here.

[begert]

Your branch works! But the NullPointer persists when I set the hibernate.session_factory_name property, even if I remove the "hibernate/".

I will try this again later, but thanks for your help!

[smarlow]

Have you tried injecting the session factory as a workaround?  Example from the JPA documentation

import org.hibernate.SessionFactory;
@Stateful public class MyStatefulBean ... {
   @PersistenceUnit(unitName="mypu") SessionFactory factory;
}

We started supporting the above injection for AS 5 and I know it works with Hibernate ORM 4.3.x (should also work with 3.6.x).

[virendra656]

Hello Scott,

My problem is somehow same can you please let me know hat changes i need to make in order to deploy successfully.

persistent.xml =>

<?xml version="1.0" encoding="UTF-8"?>

<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/

XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/

ns/persistence/persistence_1_0.xsd" version="1.0" >

   <persistence-unit name='ipem'>

   <jta-data-source>java:/StudentMgtDS</jta-data-source>

   <properties>

      <property name="jboss.entity.manager.jndi.name" value="java:EntityManager/ipem"/>

      <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />

      <property name="hibernate.hbm2ddl.auto" value="update"/>

      <property name="hibernate.jdbc.batch_size" value="250"/>

      <property name="hibernate.jdbc.batch_versioned_data" value="true"/>

      <property name="hibernate.id.new_generator_mappings" value="false"/>

      <property name="jboss.as.jpa.providerModule" value="org.hibernate:3" />

      <!-- END MRS 12-19-05 -->

   </properties>  

  </persistence-unit> 

  </persistence>

module.xml =>

<?xml version="1.0" encoding="UTF-8"?>

<!-- Represents the Hibernate 3.x module  -->

<module xmlns="urn:jboss:module:1.3" name="org.hibernate" slot="3">

    <resources>

<!-- <resource-root path="slf4j-api-1.5.6.jar"/>

<resource-root path="slf4j-log4j12-1.5.6.jar"/>

<resource-root path="log4j.jar"/> -->

        <resource-root path="hibernate-commons-annotations-3.2.0.Final.jar"/>

<resource-root path="hibernate-core-3.6.10.Final.jar"/>

<resource-root path="hibernate-entitymanager-3.6.10.Final.jar"/>

<resource-root path="jipijapa-hibernate3-1.0.1.Final.jar"/>

    </resources>

    <dependencies>

        <module name="asm.asm"/>

        <module name="javax.api"/>

        <module name="javax.annotation.api"/>

        <module name="javax.enterprise.api"/>

        <module name="javax.persistence.api"/>

        <module name="javax.transaction.api"/>

        <module name="javax.validation.api"/>

        <module name="javax.xml.bind.api"/>

        <module name="org.antlr"/>

        <module name="org.apache.commons.collections"/>

        <module name="org.dom4j"/>

        <module name="org.javassist"/>

        <module name="org.jboss.as.jpa.spi"/>

        <module name="org.jboss.jandex"/>

        <module name="org.jboss.logging"/>

        <module name="org.jboss.vfs"/>

    </dependencies>

</module>

Error logs =>

"{

    \"WFLYCTL0080: Failed services\" => {

        \"jboss.deployment.subunit.\\\"x3.ear\\\".\\\"x3.war\\\".INSTALL\" => \"org.jboss.msc.service.StartException in service jboss.deployment.subunit.\\\"x3.ear\\\".\\\"x3.war\\\".INSTALL: WFLYSRV0153: Failed to process phase INSTALL of subdeployment \\\"x3.war\\\" of deployment \\\"x3.ear\\\"

    Caused by: java.util.ConcurrentModificationException\",

        \"jboss.persistenceunit.\\\"x3.ear/x3.jar#ipem\\\"\" => \"org.jboss.msc.service.StartException in service jboss.persistenceunit.\\\"x3.ear/x3.jar#ipem\\\": javax.persistence.PersistenceException: [PersistenceUnit: ipem] Unable to instantiate Scanner class: class org.jboss.as.jpa.hibernate3.HibernateAnnotationScanner

    Caused by: javax.persistence.PersistenceException: [PersistenceUnit: ipem] Unable to instantiate Scanner class: class org.jboss.as.jpa.hibernate3.HibernateAnnotationScanner

    Caused by: java.lang.ClassCastException: org.jboss.as.jpa.hibernate3.HibernateAnnotationScanner cannot be cast to org.hibernate.jpa.boot.scan.spi.Scanner\"

    },

    \"WFLYCTL0180: Services with missing/unavailable dependencies\" => [

        \"jboss.deployment.subunit.\\\"x3.ear\\\".\\\"x3.war\\\".batch.environment is missing [jboss.deployment.subunit.\\\"x3.ear\\\".\\\"x3.war\\\".beanmanager]\",

        \"jboss.deployment.unit.\\\"x3.ear\\\".deploymentCompleteService is missing [jboss.deployment.subunit.\\\"x3.ear\\\".\\\"x3.war\\\".deploymentCompleteService]\",

        \"jboss.deployment.unit.\\\"x3.ear\\\".WeldStartService is missing [jboss.deployment.subunit.\\\"x3.ear\\\".\\\"x3.war\\\".jndiDependencyService]\"

    ]

}"

[andey]

Workaround is to bundle Hibernate 3 jars with application. there is s bug opened for this: [WFLY-3074] Hibernate 3.x static module cannot be used - JBoss Issue Tracker