Error occurred in HibernatePersistence provider

Question

The application i am currently working on uses Spring JPA and it works fine. But when i deploy it in Websphere application server V8.5 i get below exception on application startup. Data Base used is Oracle Oracle Database 11g Express Edition Release 11.2.0.2.0.

An error occurred in the org.hibernate.ejb.HibernatePersistence persistence provider when it attempted to create the container entity manager factory for the domain persistence unit. The following error occurred: java.lang.NullPointerException
    at org.hibernate.engine.jdbc.internal.TypeInfoExtracter.extractTypeInfo(TypeInfoExtracter.java:85)
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:144)
    at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
    at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1797)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1755)
    at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:96)
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:914)
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:899)
    at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:76)
    at com.ibm.ws.jpa.management.JPAPUnitInfo.createEMFactory(JPAPUnitInfo.java:1584)
    at com.ibm.ws.jpa.management.JPAPUnitInfo.createEntityManagerFactory(JPAPUnitInfo.java:1406)
    at com.ibm.ws.jpa.management.JPAPxmlInfo.extractPersistenceUnits(JPAPxmlInfo.java:246)
    at com.ibm.ws.jpa.management.JPAScopeInfo.processPersistenceUnit(JPAScopeInfo.java:119)
    at com.ibm.ws.jpa.management.JPAApplInfo.processModulePUs(JPAApplInfo.java:167)
    at com.ibm.ws.jpa.management.AbstractJPAComponent.startingModule(AbstractJPAComponent.java:451)
    at com.ibm.ws.jpa.management.JPAComponentImpl.startingDeployedModule(JPAComponentImpl.java:771)
    at com.ibm.ws.jpa.management.JPAComponentImpl.adjust(JPAComponentImpl.java:559)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.adjust(ApplicationMgrImpl.java:1071)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectAdjust(DeployedApplicationImpl.java:1394)
    at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:627)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:968)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:776)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplicationDynamically(ApplicationMgrImpl.java:1379)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:2189)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:446)
    at com.ibm.ws.runtime.component.CompositionUnitImpl.start(CompositionUnitImpl.java:123)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:389)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.access$500(CompositionUnitMgrImpl.java:117)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl$1.run(CompositionUnitMgrImpl.java:664)
    at com.ibm.ws.security.auth.ContextManagerImpl.runAs(ContextManagerImpl.java:5474)
    at com.ibm.ws.security.auth.ContextManagerImpl.runAsSystem(ContextManagerImpl.java:5600)
    at com.ibm.ws.security.core.SecurityContext.runAsSystem(SecurityContext.java:255)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.startCompositionUnit(CompositionUnitMgrImpl.java:678)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.startCompositionUnit(CompositionUnitMgrImpl.java:622)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:1269)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:611)
    at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:69)
    at sun.reflect.GeneratedMethodAccessor98.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
    at java.lang.reflect.Method.invoke(Method.java:611)
    at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:272)
    at javax.management.modelmbean.RequiredModelMBean$4.run(RequiredModelMBean.java:1152)
    at java.security.AccessController.doPrivileged(AccessController.java:298)
    at com.ibm.oti.security.CheckedAccessControlContext.securityCheck(CheckedAccessControlContext.java:30)
    at sun.misc.JavaSecurityAccessWrapper.doIntersectionPrivilege(JavaSecurityAccessWrapper.java:41)
    at javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1146)
    at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:999)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:847)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:783)
    at com.ibm.ws.management.AdminServiceImpl$1.run(AdminServiceImpl.java:1335)
    at com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java:118)
    at com.ibm.ws.management.AdminServiceImpl.invoke(AdminServiceImpl.java:1228)
    at com.ibm.ws.management.connector.AdminServiceDelegator.invoke(AdminServiceDelegator.java:181)
    at com.ibm.ws.management.connector.ipc.CallRouter.route(CallRouter.java:247)
    at com.ibm.ws.management.connector.ipc.IPCConnectorInboundLink.doWork(IPCConnectorInboundLink.java:360)
    at com.ibm.ws.management.connector.ipc.IPCConnectorInboundLink$IPCConnectorReadCallback.complete(IPCConnectorInboundLink.java:602)
    at com.ibm.ws.ssl.channel.impl.SSLReadServiceContext$SSLReadCompletedCallback.complete(SSLReadServiceContext.java:1818)
    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)
    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1864)

and the application still works fine, i mean i am able to access the application and perform business logic's using it.

Not sure why this exception is logged in SystemOut.log every time i deploy the application. Persistence.xml is as below.

<persistence version="2.0" 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_2_0.xsd">
<persistence-unit name="domain" transaction-type="RESOURCE_LOCAL">
    <provider>org.hibernate.ejb.HibernatePersistence</provider>
    <non-jta-data-source>java:comp/env/jdbc/MyDS</non-jta-data-source>
    <class>MyEntityClasses</class>
</persistence-unit>

Can some one please let me know why is this exception thrown?

Here is my Spring configurations

<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:jpa="http://www.springframework.org/schema/data/jpa"
   xmlns:context="http://www.springframework.org/schema/context"
   xmlns:tx="http://www.springframework.org/schema/tx"
   xmlns:mvc="http://www.springframework.org/schema/mvc"
   xmlns:jee="http://www.springframework.org/schema/jee"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
         http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/data/jpa
         http://www.springframework.org/schema/data/jpa/spring-jpa.xsd
         http://www.springframework.org/schema/tx 
         http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
         http://www.springframework.org/schema/context 
         http://www.springframework.org/schema/context/spring-context-3.1.xsd
         http://www.springframework.org/schema/mvc
         http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
         http://www.springframework.org/schema/jee 
         http://www.springframework.org/schema/jee/spring-jee-3.1.xsd">

<context:annotation-config/> 
<tx:annotation-driven/>
<bean id="entityManagerFactory"  class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="persistenceUnitName" value="mypersistenceunit" />
</bean>
<bean id="persistenceExceptionTranslationPostProcessor"
      class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />

<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    <property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>

<jpa:repositories base-package="com.domain.repository" />

Do you have the MyEntityClasses entity or you didn't want to specify all the classes you have and add this like a dummy? — neshkeev, Sep 03 '14 at 08:51
@zaratustra Since i didnt want to mention all my entity classes have specified like that. — Samy, Sep 03 '14 at 08:59

score 0 · Answer 1 · answered Sep 03 '14 at 08:58

The Hibernate method TypeInfo.extractTypeInfo uses jdbc DatabaseMetaData to query the data types from database. You may need to debug the NullPointer in your case. I do not suspect metaData to be null as it is used earlier extensively before the call to this method while the Hibernate bootstraps.

public static LinkedHashSet<TypeInfo> extractTypeInfo(DatabaseMetaData metaData) {
        final LinkedHashSet<TypeInfo> typeInfoSet = new LinkedHashSet<TypeInfo>();
        try {
            final ResultSet resultSet = metaData.getTypeInfo();
            try {
                while ( resultSet.next() ) {
                    typeInfoSet.add(
                            new TypeInfo(
                                    resultSet.getString( "TYPE_NAME" ),
                                    resultSet.getInt( "DATA_TYPE" ),
                                    interpretCreateParams( resultSet.getString( "CREATE_PARAMS" ) ),
                                    resultSet.getBoolean( "UNSIGNED_ATTRIBUTE" ),
                                    resultSet.getInt( "PRECISION" ),
                                    resultSet.getShort( "MINIMUM_SCALE" ),
                                    resultSet.getShort( "MAXIMUM_SCALE" ),
                                    resultSet.getBoolean( "FIXED_PREC_SCALE" ),
                                    resultSet.getString( "LITERAL_PREFIX" ),
                                    resultSet.getString( "LITERAL_SUFFIX" ),
                                    resultSet.getBoolean( "CASE_SENSITIVE" ),
                                    TypeSearchability.interpret( resultSet.getShort( "SEARCHABLE" ) ),
                                    TypeNullability.interpret( resultSet.getShort( "NULLABLE" ) )
                            )
                    );
                }
            }
            catch ( SQLException e ) {
                LOG.unableToAccessTypeInfoResultSet( e.toString() );
            }
            finally {
                try {
                    resultSet.close();
                }
                catch ( SQLException e ) {
                    LOG.unableToReleaseTypeInfoResultSet();
                }
            }
        }
        catch ( SQLException e ) {
            LOG.unableToRetrieveTypeInfoResultSet( e.toString() );
        }

        return typeInfoSet;
    }

NullPointer exception is on line resultSet.close(); in finally block. You are right, data base metadata will not be null, but the metaData.getTypeInfo() which results a ResultSet is null. I really have no clue that how to debug this as the application works fine with no issue. — Samy, Sep 03 '14 at 09:03
You can enable remote debugging in WebSphere and attach a debugger from an IDE (eclipse etc) just while the server is starting. — Shailendra, Sep 03 '14 at 09:10
I did try enabling Spring frameworks log, let me try enabling WebSphere log and update. — Samy, Sep 03 '14 at 09:19
I tried enabling debug logs, ffdc incident is written when the exception thrown, except for the stack trace i could not find no much information with respect to it. — Samy, Sep 03 '14 at 12:05

Error occurred in HibernatePersistence provider

1 Answers1