[Hibernate-issues] [Hibernate-JIRA] Closed: (HB-401) reflection optimizer bug

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Message:

   The following issue has been closed.

   Resolver: Gavin King
       Date: Sat, 18 Oct 2003 6:29 AM

Ah yeah, I think CGLIB tries to instantiate an instance of the class when it creates a "proxy factory". Well, you can ask the CGLIB guys about this. But I won't change Hibernate - it is now using CGLIB as recommended by the CGLIB guys.
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View the issue:

  http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-401


Here is an overview of the issue:
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        Key: HB-401
    Summary: reflection optimizer bug
       Type: Bug

     Status: Closed
   Priority: Major
 Resolution: WON'T FIX

    Project: Hibernate2
 Components: 
             core
   Versions:
             2.1 beta 4

   Assignee: Gavin King
   Reporter: Dominik Roblek

    Created: Wed, 15 Oct 2003 5:32 AM
    Updated: Sat, 18 Oct 2003 6:29 AM

Description:
I have some persistent classes, which cannot be instrumented with CGLIB reflection optimizer. In Hibernate versions prior to 2.1beta4 I've got the following correct log messages and everything worked fine:
---
14:26:48,230 INFO [:] SessionFactoryImpl:109 - building session factory
14:26:57,507 INFO [:] ReflectHelper:328 - reflection optimizer disabled for: si.marand.maf.server.jastreb.party.module.entity.PersonEntity, NullPointerException: null
14:26:59,175 INFO [:] ReflectHelper:328 - reflection optimizer disabled for: si.marand.maf.server.jastreb.party.module.entity.BankEntity, NullPointerException: null
14:27:06,349 INFO [:] SessionFactoryObjectFactory:86 - Factory name: maf-server-hibernate-sessionFactory
---

But in version 2.1beta4 is instead of this in the same phase of startup process thrown an exception, which stops application. The excerption from log it here:
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12:18:51,464 ERROR [:] LazyInitializer:62 - CGLIB Enhancement failed
net.sf.cglib.CodeGenerationException
        at net.sf.cglib.ReflectUtils.newInstance(ReflectUtils.java:200)
        at net.sf.cglib.ReflectUtils.newInstance(ReflectUtils.java:186)
        at net.sf.cglib.ReflectUtils.newInstance(ReflectUtils.java:181)
        at net.sf.cglib.Enhancer.enhanceHelper(Enhancer.java:222)
        at net.sf.cglib.Enhancer.enhance(Enhancer.java:149)
        at net.sf.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:52)
        at net.sf.hibernate.persister.AbstractEntityPersister.<init>(AbstractEntityPersister.java:754)
        at net.sf.hibernate.persister.NormalizedEntityPersister.<init>(NormalizedEntityPersister.java:737)
        at net.sf.hibernate.persister.PersisterFactory.create(PersisterFactory.java:63)
        at net.sf.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:132)
        at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:660)
        ...
---

Besides of this bug it seems, that hibernate.cglib.use_reflection_optimizer setting is ignored in beta4 and "true" is allways used as it's value.

Dominik


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