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

[<leg...@at...>]

The following comment has been added to this issue:

     Author: Dominik Roblek
    Created: Mon, 20 Oct 2003 3:56 AM
       Body:
Thanks for help. The problem really appeared because of CGLIB tried to instantiate an instance of the instrumented class and this instantiation was not possible at the Hibernate configuration time because of poor design of my class. I fixed it and now it works fine.
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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)
        ...
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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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