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Author Message
rm2558
 Post subject: NullPointerException in 'before_completion synchronization'
PostPosted: Mon Oct 03, 2005 2:27 am 
Newbie

Joined: Mon Oct 03, 2005 1:25 am
Posts: 2
Location: Brisbane
I am using Hibernate on Websphere 5.1.3 with Container Managed JTA Transcations in facade Session Beans.

hibernate.transaction.factory_class=org.hibernate.transaction.CMTTransactionFactory
hibernate.transaction.manager_lookup_class=org.hibernate.transaction.WebSphereTransactionManagerLookup

The facade Session Beans are invoked remotely from Cactus Tests in a seperate EAR. I have been getting a NullPointerException while before_completion synchronization operation.

Any suggestions would be appreciated.

Hibernate version: 3.0.5

Mapping documents:
This is a abridged version. The table has more than 200 columns.
Code:
<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
    <class
        name="com.mycom.ejb.msf628.MSF628Rec"
        table="MSF628">

        <composite-id
            name="primaryKey"
            class="com.mycom.ejb.msf628.MSF628Key">
                     <key-property
                        name="dstrctCode"
                        type="java.lang.String"
                        column="DSTRCT_CODE" />

                     <key-property
                        name="workOrder"
                        type="java.lang.String"
                        column="WORK_ORDER"  />

                     <key-property
                        name="actionDate"
                        type="java.lang.String"
                        column="ACTION_DATE"  />

                     <key-property
                        name="actionTime"
                        type="java.lang.String"
                        column="ACTION_TIME"   />

        </composite-id>

        <property
            name="rsNoticeId"
            type="java.lang.String"
            update="true"
            insert="true"
            column="RS_NOTICE_ID"  />

        <property
            name="actionTaken"
            type="java.lang.String"
            update="true"
            insert="true"
            column="ACTION_TAKEN"   />

        <property
            name="noticeType"
            type="java.lang.String"
            update="true"
            insert="true"
            column="NOTICE_TYPE"    />

        ...........


    </class>
   
</hibernate-mapping>


Code between sessionFactory.openSession() and session.close():
This method requires a J2EE Container managed transaction.
Code:
    /**
     * Create Method
     * @ejb.interface-method view-type="remote"
     */
    public Object create(Object rec) throws CreateException, NamingException, EDOIApplicationException {
        MSF628Rec value = MSF628Helper.validateVO((MSF628Rec) rec);
        try {
            Session session = HibernateUtil.getSession();
            session.save(value);
        }
        catch (ConstraintViolationException e){
            throw new DuplicateKeyException(e.getMessage());
        }
        catch (HibernateException e){
            throw new CreateException(e.getMessage());

        }catch (Exception ex){
         ex.printStackTrace();
       }
        return value;

    }


HibernateUtil.java
Code:
public class HibernateUtil {

    private static SessionFactory sessionFactory;
    static {
        try {
            Configuration cfg = new Configuration();
            cfg.setProperties(EDOIProperties.getProperties());
            EDOILogger.trace.debug("Hibernate Config setup with values from Edoi Properties File");
            cfg.addResource("com/mycom/ejb/msf628/MSF628Rec.hbm.xml");
            cfg.buildSessionFactory();
        } catch (EDOIApplicationException ex) {
            EDOILogger.exception.fatal("Initial SessionFactory creation failed.");
            throw new ExceptionInInitializerError(ex.getMessage());
        } catch (Throwable ex) {
            EDOILogger.exception.fatal("Initial SessionFactory creation failed.");
            throw new ExceptionInInitializerError(ex.getMessage());
        }
    }

    public static SessionFactory getSessionFactory() throws NamingException {
        SessionFactory sessions = null;
        Context ctx = new InitialContext();
        String jndiName = "com/mycom/common/HibernateUtil";
        sessions = (SessionFactory) ctx.lookup(jndiName);
        return sessions;
    }


    public static Session getSession() throws EDOIApplicationException{
        Session s;
        try {
             s= getSessionFactory().getCurrentSession();
        } catch (HibernateException ex) {
            throw new EDOIApplicationException(ex.getMessage());
        } catch (NamingException ex) {
            throw new EDOIApplicationException(ex.getMessage());
        }
        return s;
    }


}


Full stack trace of any exception that occurs:
Code:
[3/10/05 16:00:20:416 EST] 46a6641c RegisteredSyn E WTRN0074E: Exception caught from before_completion synchronization operation: java.lang.NullPointerException
   at oracle.jdbc.dbaccess.DBData.clearItem(DBData.java:431)
   at oracle.jdbc.dbaccess.DBDataSetImpl.clearItem(DBDataSetImpl.java:3528)
   at oracle.jdbc.driver.OraclePreparedStatement.clearParameters(OraclePreparedStatement.java:3401)
   at com.ibm.ws.rsadapter.jdbc.WSJdbcConnection.resetStatement(WSJdbcConnection.java:1842)
   at com.ibm.ws.rsadapter.jdbc.WSJdbcConnection.prepareStatement(WSJdbcConnection.java:1524)
   at com.ibm.ws.rsadapter.jdbc.WSJdbcConnection.prepareStatement(WSJdbcConnection.java:1487)
   at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:396)
   at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:76)
   at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:69)
   at org.hibernate.jdbc.AbstractBatcher.prepareBatchStatement(AbstractBatcher.java:150)
   at org.hibernate.persister.entity.BasicEntityPersister.insert(BasicEntityPersister.java:1839)
   at org.hibernate.persister.entity.BasicEntityPersister.insert(BasicEntityPersister.java:2200)
   at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:46)
   at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:239)
   at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:223)
   at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:136)
   at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:274)
   at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
   at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:730)
   at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:324)
   at org.hibernate.transaction.CacheSynchronization.beforeCompletion(CacheSynchronization.java:58)
   at com.ibm.ws.Transaction.JTA.RegisteredSyncs.distributeBefore(RegisteredSyncs.java:135)
   at com.ibm.ws.Transaction.JTA.TransactionImpl.internalPrepare(TransactionImpl.java:1230)
   at com.ibm.ws.Transaction.JTA.TransactionImpl.commit(TransactionImpl.java:979)
   at com.ibm.ws.Transaction.JTA.TranManagerImpl.commit(TranManagerImpl.java:150)
   at com.ibm.ws.Transaction.JTA.TranManagerSet.commit(TranManagerSet.java:177)
   at com.ibm.ejs.csi.TranStrategy.commit(TranStrategy.java:712)
   at com.ibm.ejs.csi.TranStrategy.postInvoke(TranStrategy.java:167)
   at com.ibm.ejs.csi.TransactionControlImpl.postInvoke(TransactionControlImpl.java:565)
   at com.ibm.ejs.container.EJSContainer.postInvoke(EJSContainer.java:3068)
   at com.ibm.ejs.container.EJSContainer.postInvoke(EJSContainer.java:2946)
   at com.mycom.ejb.msf628.EJSRemoteStatelessMSF628Facade_0ecaade7.create(Unknown Source)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:85)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:58)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
   at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
   at com.ibm.rmi.util.ProxyUtil$4.run(ProxyUtil.java:726)
   at java.security.AccessController.doPrivileged1(Native Method)
   at java.security.AccessController.doPrivileged(AccessController.java:351)
   at com.ibm.rmi.util.ProxyUtil.invokeWithClassLoaders(ProxyUtil.java:724)
   at com.ibm.CORBA.iiop.ClientDelegate.invoke(ClientDelegate.java:1121)
   at $Proxy3.create(Unknown Source)
   at com.mycom.ejb.msf628._MSF628Facade_Stub.create(_MSF628Facade_Stub.java:325)
   at com.mycom.ejb.msf628.test.MSF628Test.standardCreate(MSF628Test.java:225)
   at com.mycom.ejb.msf628.test.MSF628Test.testMSF628Create(MSF628Test.java:97)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:85)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:58)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
   at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
   at junit.framework.TestCase.runTest(TestCase.java:154)
   at junit.framework.TestCase.runBare(TestCase.java:127)
   at org.apache.cactus.internal.AbstractCactusTestCase.runBareServer(AbstractCactusTestCase.java:153)
   at org.apache.cactus.internal.server.AbstractWebTestCaller.doTest(AbstractWebTestCaller.java:119)
   at org.apache.cactus.internal.server.AbstractWebTestController.handleRequest_aroundBody0(AbstractWebTestController.java:93)
   at org.apache.cactus.internal.server.AbstractWebTestController.handleRequest_aroundBody1$advice(AbstractWebTestController.java:224)
   at org.apache.cactus.internal.server.AbstractWebTestController.handleRequest(AbstractWebTestController.java)
   at org.apache.cactus.server.ServletTestRedirector.doPost_aroundBody2(ServletTestRedirector.java:101)
   at org.apache.cactus.server.ServletTestRedirector.doPost_aroundBody3$advice(ServletTestRedirector.java:224)
   at org.apache.cactus.server.ServletTestRedirector.doPost(ServletTestRedirector.java)
   at org.apache.cactus.server.ServletTestRedirector.doGet_aroundBody0(ServletTestRedirector.java:72)
   at org.apache.cactus.server.ServletTestRedirector.doGet_aroundBody1$advice(ServletTestRedirector.java:224)
   at org.apache.cactus.server.ServletTestRedirector.doGet(ServletTestRedirector.java)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
   at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
   at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
   at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
   at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
   at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
   at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
   at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40)
   at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:1049)
   at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:600)
   at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:201)
   at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:125)
   at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:286)
   at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
   at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
   at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
   at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
   at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:624)
   at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:448)
   at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:912)



Name and version of the database you are using: Oracle 9

Debug level Hibernate log excerpt:
Code:
[3/10/05 16:00:17:338 EST] 46a6641c Environment   I org.hibernate.cfg.Environment  Hibernate 3.0.5
[3/10/05 16:00:17:338 EST] 46a6641c Environment   I org.hibernate.cfg.Environment  hibernate.properties not found
[3/10/05 16:00:17:353 EST] 46a6641c Environment   I org.hibernate.cfg.Environment  using CGLIB reflection optimizer
[3/10/05 16:00:17:353 EST] 46a6641c Environment   I org.hibernate.cfg.Environment  using JDK 1.4 java.sql.Timestamp handling
[3/10/05 16:00:17:744 EST] 46a6641c Configuration I org.hibernate.cfg.Configuration  Mapping resource: com/mycom/ejb/msf628/MSF628Rec.hbm.xml
[3/10/05 16:00:18:150 EST] 46a6641c HbmBinder     I org.hibernate.cfg.HbmBinder  Mapping class: com.mycom.ejb.msf628.MSF628Rec -> MSF628
[3/10/05 16:00:18:244 EST] 46a6641c Configuration I org.hibernate.cfg.Configuration  processing extends queue
[3/10/05 16:00:18:244 EST] 46a6641c Configuration I org.hibernate.cfg.Configuration  processing collection mappings
[3/10/05 16:00:18:244 EST] 46a6641c Configuration I org.hibernate.cfg.Configuration  processing association property references
[3/10/05 16:00:18:244 EST] 46a6641c Configuration I org.hibernate.cfg.Configuration  processing foreign key constraints
[3/10/05 16:00:19:025 EST] 46a6641c NamingHelper  I org.hibernate.util.NamingHelper  JNDI InitialContext properties:{}
[3/10/05 16:00:19:025 EST] 46a6641c DatasourceCon I org.hibernate.connection.DatasourceConnectionProvider  Using datasource: jdbc/EllipseDatasource
[3/10/05 16:00:19:041 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  RDBMS: Oracle, version: Oracle9i Release 9.2.0.1.0 - Production
JServer Release 9.2.0.1.0 - Production
[3/10/05 16:00:19:041 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  JDBC driver: Oracle JDBC driver, version: 9.2.0.1.0
[3/10/05 16:00:19:103 EST] 46a6641c Dialect       I org.hibernate.dialect.Dialect  Using dialect: org.hibernate.dialect.OracleDialect
[3/10/05 16:00:19:134 EST] 46a6641c TransactionFa I org.hibernate.transaction.TransactionFactoryFactory  Transaction strategy: org.hibernate.transaction.CMTTransactionFactory
[3/10/05 16:00:19:134 EST] 46a6641c TransactionMa I org.hibernate.transaction.TransactionManagerLookupFactory  instantiating TransactionManagerLookup: org.hibernate.transaction.WebSphereTransactionManagerLookup
[3/10/05 16:00:19:150 EST] 46a6641c TransactionMa I org.hibernate.transaction.TransactionManagerLookupFactory  instantiated TransactionManagerLookup
[3/10/05 16:00:19:150 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Automatic flush during beforeCompletion(): enabled
[3/10/05 16:00:19:150 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Automatic session close at end of transaction: disabled
[3/10/05 16:00:19:150 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  JDBC batch size: 15
[3/10/05 16:00:19:150 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  JDBC batch updates for versioned data: disabled
[3/10/05 16:00:19:150 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Scrollable result sets: enabled
[3/10/05 16:00:19:150 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  JDBC3 getGeneratedKeys(): disabled
[3/10/05 16:00:19:150 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Connection release mode: null
[3/10/05 16:00:19:150 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Default batch fetch size: 1
[3/10/05 16:00:19:150 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Generate SQL with comments: disabled
[3/10/05 16:00:19:150 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Order SQL updates by primary key: disabled
[3/10/05 16:00:19:150 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory
[3/10/05 16:00:19:166 EST] 46a6641c ASTQueryTrans I org.hibernate.hql.ast.ASTQueryTranslatorFactory  Using ASTQueryTranslatorFactory
[3/10/05 16:00:19:166 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Query language substitutions: {}
[3/10/05 16:00:19:166 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Second-level cache: enabled
[3/10/05 16:00:19:166 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Query cache: disabled
[3/10/05 16:00:19:166 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Cache provider: org.hibernate.cache.EhCacheProvider
[3/10/05 16:00:19:181 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Optimize cache for minimal puts: disabled
[3/10/05 16:00:19:197 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Structured second-level cache entries: disabled
[3/10/05 16:00:19:228 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Statistics: disabled
[3/10/05 16:00:19:228 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Deleted entity synthetic identifier rollback: disabled
[3/10/05 16:00:19:228 EST] 46a6641c SettingsFacto I org.hibernate.cfg.SettingsFactory  Default entity-mode: pojo
[3/10/05 16:00:19:306 EST] 46a6641c SessionFactor I org.hibernate.impl.SessionFactoryImpl  building session factory
[3/10/05 16:00:19:322 EST] 46a6641c Configurator  W net.sf.ehcache.config.Configurator  No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: wsjar:file:/D:/Program Files/WebSphere/AppServer/installedApps/A018426/edoi-8541WIP.ear/APP-INF/lib/ehcache-1.1.jar!/ehcache-failsafe.xml
[3/10/05 16:00:20:228 EST] 46a6641c SessionFactor I org.hibernate.impl.SessionFactoryObjectFactory  Factory name: com/mycom/common/HibernateUtil
[3/10/05 16:00:20:228 EST] 46a6641c NamingHelper  I org.hibernate.util.NamingHelper  JNDI InitialContext properties:{}
[3/10/05 16:00:20:244 EST] 46a6641c SessionFactor I org.hibernate.impl.SessionFactoryObjectFactory  Bound factory to JNDI name: com/mycom/common/HibernateUtil
[3/10/05 16:00:20:244 EST] 46a6641c SessionFactor W org.hibernate.impl.SessionFactoryObjectFactory  InitialContext did not implement EventContext
[3/10/05 16:00:20:244 EST] 46a6641c WebSphereTran I org.hibernate.transaction.WebSphereTransactionManagerLookup  WebSphere 5.1
[3/10/05 16:00:20:244 EST] 46a6641c SessionFactor I org.hibernate.impl.SessionFactoryImpl  Checking 0 named queries
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gavin
 Post subject:
PostPosted: Mon Oct 03, 2005 2:41 am 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 12:50 pm
Posts: 5130
Location: Melbourne, Australia
So, this has nothing to do with Hibernate. The bug is in the Oracle JDBC driver, or possibly in the WebSphere connection pool.
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rm2558
 Post subject:
PostPosted: Tue Oct 04, 2005 1:54 am 
Newbie

Joined: Mon Oct 03, 2005 1:25 am
Posts: 2
Location: Brisbane
The problem was found to be a bug with Oracle driver 9.0.2.0. Downloading the latest drivers from the Oracle website solved it.

Thanks.
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