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answers:

1
+1  Q: 

null pointer exception at org.hibernate.tuple.AbstractEntityTuplizer.createProxy

I am using hibernate 3.2 with struts 1.2 framework here is the details of versions hibenate3.2,asm-2.2.3,cglib-2.1.3 I got this exception when i m trying to load the object

I am using this code to load the object

public Currentprofile findById(java.lang.String id) {
    log.debug("getting Currentprofile instance with id: " + id);
    try {
        Currentprofile instance = (Currentprofile) getSession().get(
            "com.hibermappings.Currentprofile", id);
        return instance;
    } catch (RuntimeException re) {
        log.error("get failed", re);
        throw re;
    }
}

My hbm file is this

<hibernate-mapping>
    <class name="com.hibermappings.Currentprofile" table="currentprofile" catalog="naukrionphone">
    <id name="jobseekerId" type="java.lang.String">
        <column name="jobseekerId" length="50" />
        <generator class="assigned" />
    </id>

    <one-to-one name="referenceDb" lazy="proxy" class="com.hibermappings.ReferenceDb" cascade="all" constrained="false" /> 
    <one-to-one name="registration" lazy="proxy" class="com.hibermappings.Registration" cascade="all" constrained="false" /> 
    <one-to-one name="jobseekerpackagedetails" lazy="proxy" class="com.hibermappings.Jobseekerpackagedetails" cascade="all" constrained="false" /> 

    <property name="keyWords" type="java.lang.String">
        <column name="keyWords" length="5000" />
    </property>
    <property name="totalExp" type="java.lang.String">
        <column name="totalExp" length="100" />
    </property>
    <property name="hqualification" type="java.lang.String">
        <column name="hQualification" length="100" />
    </property>
    <property name="preferedLocation" type="java.lang.String">
        <column name="preferedLocation" length="100" />
    </property>
    <property name="functionalArea" type="java.lang.String">
        <column name="functionalArea" length="1000" />
    </property>
    <property name="expSalary" type="java.lang.String">
        <column name="expSalary" length="100" />
    </property>
    <property name="designation" type="java.lang.String">
        <column name="designation" length="100" />
    </property>
    <property name="resumeTitle" type="java.lang.String">
        <column name="resumeTitle" length="500" />
    </property>
    <property name="profileDetails" type="java.lang.String">
        <column name="profileDetails" length="65535" />
    </property>
    <property name="requiredProfile" type="java.lang.String">
        <column name="requiredProfile" length="65535" />
    </property>
    <property name="activatedOn" type="java.util.Date">
        <column name="activatedOn" length="0" />
    </property>

    <set name="resumes" inverse="true" cascade="save-update">
        <key>
            <column name="jobseekerId" length="50" />
        </key>
        <one-to-many class="com.hibermappings.Resume" />
    </set>

</class>
</hibernate-mapping>

the same code runs well when I m using in a simple java class within main method ..

full stack trace of exception is 

java.lang.NullPointerException
 at org.hibernate.tuple.AbstractEntityTuplizer.createProxy(AbstractEntityTuplizer.java:372)
 at org.hibernate.persister.entity.AbstractEntityPersister.createProxy(AbstractEntityPersister.java:3121)
 at org.hibernate.event.def.DefaultLoadEventListener.createProxyIfNecessary(DefaultLoadEventListener.java:232)
 at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:173)
 at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:87)
 at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:862)
 at org.hibernate.impl.SessionImpl.load(SessionImpl.java:781)
 at org.hibernate.impl.SessionImpl.load(SessionImpl.java:774)
 at com.DAOs.CurrentprofileDAO.getLoad(CurrentprofileDAO.java:71)
 at com.action.JobSekeerManage.viewProfile(JobSekeerManage.java:447)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)
 at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)
 at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
 at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
 at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
 at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
 at com.filter.HibernateFilter.doFilter(HibernateFilter.java:24)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:731)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
 at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
 at java.lang.Thread.run(Thread.java:595)
Error::null

In my Log file I got this type of exception..

INFO - building session factory
WARN - No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: jar:file:/C:/Program%20Files/Apache%20Software%20Foundation/Tomcat%205.5/webapps/NewNaukriOnPhone/WEB-INF/lib/ehcache-1.1.jar!/ehcache-failsafe.xml
ERROR - CGLIB Enhancement failed: com.hibermappings.ReferenceDb
java.lang.NoSuchMethodError: org.objectweb.asm.ClassVisitor.visit(IILjava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)V
 at net.sf.cglib.core.ClassEmitter.begin_class(ClassEmitter.java:77)
 at net.sf.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:173)
 at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
 at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216)
 at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:145)
 at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:117)
 at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108)
 at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104)
 at net.sf.cglib.proxy.Enhancer.(Enhancer.java:69)
 at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:116)
 at org.hibernate.proxy.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:41)
 at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:161)
 at org.hibernate.tuple.AbstractEntityTuplizer.(AbstractEntityTuplizer.java:131)
 at org.hibernate.tuple.PojoEntityTuplizer.(PojoEntityTuplizer.java:55)
 at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
 at org.hibernate.tuple.EntityMetamodel.(EntityMetamodel.java:257)
 at org.hibernate.persister.entity.AbstractEntityPersister.(AbstractEntityPersister.java:412)
 at org.hibernate.persister.entity.SingleTableEntityPersister.(SingleTableEntityPersister.java:108)
 at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
 at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:216)
 at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176)
 at com.HibernateSessionFactory.rebuildSessionFactory(HibernateSessionFactory.java:66)
 at com.HibernateSessionFactory.getSession(HibernateSessionFactory.java:49)
 at com.DAOs.BaseHibernateDAO.getSession(BaseHibernateDAO.java:15)
 at com.DAOs.PostedprofileDAO.findByProperty(PostedprofileDAO.java:84)
 at com.admin.SendProfileAction.viewProfile(SendProfileAction.java:309)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)
 at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)
 at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
 at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
 at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
 at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
 at com.filter.HibernateFilter.doFilter(HibernateFilter.java:24)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:731)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
 at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
 at java.lang.Thread.run(Thread.java:595)
WARN - could not create proxy factory for:com.hibermappings.ReferenceDb
org.hibernate.HibernateException: CGLIB Enhancement failed: com.hibermappings.ReferenceDb
 at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:132)
 at org.hibernate.proxy.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:41)
 at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:161)
 at org.hibernate.tuple.AbstractEntityTuplizer.(AbstractEntityTuplizer.java:131)
 at org.hibernate.tuple.PojoEntityTuplizer.(PojoEntityTuplizer.java:55)
 at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
 at org.hibernate.tuple.EntityMetamodel.(EntityMetamodel.java:257)
 at org.hibernate.persister.entity.AbstractEntityPersister.(AbstractEntityPersister.java:412)
 at org.hibernate.persister.entity.SingleTableEntityPersister.(SingleTableEntityPersister.java:108)
 at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
 at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:216)
 at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176)
 at com.HibernateSessionFactory.rebuildSessionFactory(HibernateSessionFactory.java:66)
 at com.HibernateSessionFactory.getSession(HibernateSessionFactory.java:49)
 at com.DAOs.BaseHibernateDAO.getSession(BaseHibernateDAO.java:15)
 at com.DAOs.PostedprofileDAO.findByProperty(PostedprofileDAO.java:84)
 at com.admin.SendProfileAction.viewProfile(SendProfileAction.java:309)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)
 at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)
 at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
 at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
 at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
 at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
 at com.filter.HibernateFilter.doFilter(HibernateFilter.java:24)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:731)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
 at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
 at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NoSuchMethodError: org.objectweb.asm.ClassVisitor.visit(IILjava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)V
 at net.sf.cglib.core.ClassEmitter.begin_class(ClassEmitter.java:77)
 at net.sf.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:173)
 at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
 at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216)
 at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:145)
 at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:117)
 at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108)
 at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104)
 at net.sf.cglib.proxy.Enhancer.(Enhancer.java:69)
 at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:116)
 ... 45 more
ERROR - CGLIB Enhancement failed: com.hibermappings.Companyprofile
java.lang.NoClassDefFoundError
 at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:116)
 at org.hibernate.proxy.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:41)
 at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:161)
 at org.hibernate.tuple.AbstractEntityTuplizer.(AbstractEntityTuplizer.java:131)
 at org.hibernate.tuple.PojoEntityTuplizer.(PojoEntityTuplizer.java:55)
 at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
 at org.hibernate.tuple.EntityMetamodel.(EntityMetamodel.java:257)
 at org.hibernate.persister.entity.AbstractEntityPersister.(AbstractEntityPersister.java:412)
 at org.hibernate.persister.entity.SingleTableEntityPersister.(SingleTableEntityPersister.java:108)
 at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
 at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:216)
 at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176)
 at com.HibernateSessionFactory.rebuildSessionFactory(HibernateSessionFactory.java:66)
 at com.HibernateSessionFactory.getSession(HibernateSessionFactory.java:49)
 at com.DAOs.BaseHibernateDAO.getSession(BaseHibernateDAO.java:15)
 at com.DAOs.PostedprofileDAO.findByProperty(PostedprofileDAO.java:84)
 at com.admin.SendProfileAction.viewProfile(SendProfileAction.java:309)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)
 at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)
 at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
 at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
 at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
 at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
 at com.filter.HibernateFilter.doFilter(HibernateFilter.java:24)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:731)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
 at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.ru

here is the details of versions hibenate3.2,asm-2.2.3,cglib-2.1.3

A: 

If this works outside the web application, check that your mapping file is well packaged and found when the SessionFactory is created when running in container.

Update: You have a wrong version of ASM on the classpath (at least, not the one expected by CGLIB). What versions of Hibernate, ASM and CGLIB are using exactly? Are you using the JARs that ship with Hibernate? See if the solution given in this thread works for you. Another option would be to switch from CGLIB to Javassist.

Update: You need asm-1.5.3.jar with cglib-2.1.3.jar (or to replace both with cglib-nodep-2.1.3.jar, see HHH-2222). Use the JARs of Hibernate distribution.

Pascal Thivent  2010-03-12 15:34:08
my mapping file is well packaged is there any problems in creating proxy..?
saurabh  2010-03-12 16:58:37
what could be the problem..?please provide me some links from where i can get the details...
saurabh  2010-03-12 17:01:26
@saurabh It's impossible for me to answer this question with the current level of detail. Can you confirm the mapping is found when the SessionFactory is created (activate logging and check application startup logs).
Pascal Thivent  2010-03-12 17:51:13
@Pascal I am addded the log file details pls find it...
saurabh  2010-03-13 04:55:33
here is the details of versions hibenate3.2,asm-2.2.3,cglib-2.1.3
saurabh  2010-03-13 09:00:17
I have given the detail of version above pls consider it...
saurabh  2010-03-13 09:17:48
@saurabh Thanks. BTW, the common way of recognizing a good answer is upvoting it ;) Also check http://meta.stackoverflow.com/questions/686/accepting-answer-without-upvoting
Pascal Thivent  2010-03-14 16:16:10

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