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joostschouten
 Post subject: could not create proxy factory for: User
PostPosted: Fri Aug 11, 2006 5:32 pm 
Newbie

Joined: Fri Nov 18, 2005 1:01 pm
Posts: 18
Location: Delft, the Netherlands
Hi,

I have the folowing mapping (simplified for post):

Code:
<class name="PhisicalEntity" table="PHISICAL_ENTITIES">
   <id name="id" type="java.lang.Long" column="id" />

   <joined-subclass name="Employee" table="EMPLOYEES">
       <key column="phisicalentityId" />
   </joined-subclass>

   <joined-subclass name="Company" table="COMPANIES">
       <key column="phisicalentityId" />
   </joined-subclass>
</class>


Where PhisicalEntity is the super class for Employee and Company. Now when I fetch my Set of employees for a company I get the exception shown below. How does Hibernate handle the ProxyFactory for a joined-subclass and how can I prevent this exception?

Thank you,
Joost

The exception:

Code:
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.<init>(AbstractEntityTuplizer.java:131)
   at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55)
   at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
   at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:257)
   at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412)
   at org.hibernate.persister.entity.JoinedSubclassEntityPersister.<init>(JoinedSubclassEntityPersister.java:90)
   at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:58)
   at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:215)
   at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1154)
   at com.jsportal.projectportal.transactionManagement.HibernateResource.<init>(HibernateResource.java:58)
   at com.jsportal.projectportal.transactionManagement.licenseHibernateResource.<init>(licenseHibernateResource.java:20)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
   at java.lang.reflect.Constructor.newInstance(Unknown Source)
   at com.jsportal.projectportal._config.<init>(_config.java:163)
   at com.jsportal.projectportal.licenseConfig.<init>(licenseConfig.java:155)
   at com.jsportal.projectportal.web.webLicenseConfig.<init>(webLicenseConfig.java:89)
   at com.jsportal.projectportal.web.ApplicationStartupServlet.setUpApplication(ApplicationStartupServlet.java:105)
   at com.jsportal.projectportal.web.ApplicationStartupServlet.init(ApplicationStartupServlet.java:37)
   at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
   at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
   at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3917)
   at org.apache.catalina.core.StandardContext.start(StandardContext.java:4201)
   at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
   at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
   at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
   at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
   at org.apache.catalina.core.StandardService.start(StandardService.java:450)
   at org.apache.catalina.core.StandardServer.start(StandardServer.java:709)
   at org.apache.catalina.startup.Catalina.start(Catalina.java:551)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
   at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
"WARN  11 Aug 2006 23:09:32,906 [Thread-1] org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:173) - could not create proxy factory for:com.jsportal.projectportal.portalBeans.Employee
org.hibernate.HibernateException: CGLIB Enhancement failed: com.jsportal.projectportal.portalBeans.Employee
   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.<init>(AbstractEntityTuplizer.java:131)
   at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55)
   at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
   at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:257)
   at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412)
   at org.hibernate.persister.entity.JoinedSubclassEntityPersister.<init>(JoinedSubclassEntityPersister.java:90)
   at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:58)
   at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:215)
   at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1154)
   at com.jsportal.projectportal.transactionManagement.HibernateResource.<init>(HibernateResource.java:58)
   at com.jsportal.projectportal.transactionManagement.licenseHibernateResource.<init>(licenseHibernateResource.java:20)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
   at java.lang.reflect.Constructor.newInstance(Unknown Source)
   at com.jsportal.projectportal._config.<init>(_config.java:163)
   at com.jsportal.projectportal.licenseConfig.<init>(licenseConfig.java:155)
   at com.jsportal.projectportal.web.webLicenseConfig.<init>(webLicenseConfig.java:89)
   at com.jsportal.projectportal.web.ApplicationStartupServlet.setUpApplication(ApplicationStartupServlet.java:105)
   at com.jsportal.projectportal.web.ApplicationStartupServlet.init(ApplicationStartupServlet.java:37)
   at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
   at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
   at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3917)
   at org.apache.catalina.core.StandardContext.start(StandardContext.java:4201)
   at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
   at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
   at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
   at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
   at org.apache.catalina.core.StandardService.start(StandardService.java:450)
   at org.apache.catalina.core.StandardServer.start(StandardServer.java:709)
   at org.apache.catalina.startup.Catalina.start(Catalina.java:551)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
   at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
Caused by: java.lang.NoClassDefFoundError
   at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:116)
   ... 39 more


Hibernate version: 3

Name and version of the database you are using: MySQL 5[/code]

_________________
Joost Schouten
JS Portal

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joostschouten
 Post subject:
PostPosted: Sun Aug 27, 2006 1:10 pm 
Newbie

Joined: Fri Nov 18, 2005 1:01 pm
Posts: 18
Location: Delft, the Netherlands
It took me a while, but I found the cause. As usual to a problem that looks complex, all it was, was using the right versions of the asm-attrs.jar and asm.jar. I downloaded the latest hibernate.zip and updated all dependend jar's into my classpath.

Hope it saves someone some time.

Cheers,
Joost

_________________
Joost Schouten
JS Portal

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