I need to get CGLIB working for both Hibernate 3.3.1 and Spring 2.5.6. AFAIK with Hibernate I am supposed to use hibernate-cglib-repack-2.1_3, while Spring requires cglib-nodep-2.1_3.

If I only include cglib-nodep then Hibernate barfs with:




If I only include hibernate-cglib-repack then Spring barfs with:


..when trying to create a runtime proxy, because said class has 'import net.sf.cglib.proxy.CallbackFilter;

If I include both JARs then Hibernate's CGLib enhancement on domain objects fails with:


because net.sf.cglib.proxy.Enhancer from cglib-nodep has package name stored as a String:



and I guess when both JARs are included cglib-nodep appears first in the classpath.

So how can I get both Hibernate 3.3.1 and Spring 2.5.6 using CGLIB simultaneously? Also (out of curiosity) what was the point of repackaging CGLIB for Hibernate?

Seems like one solution is to ensure that all Strings like "net.sf.cglib" in hibernate-cglib-repackage are changed to "org.hibernate.repackage.cglib" - but I am unsure how to do that since this package is generated by altering cglib-nodep classes.

If anyone knows of a way out here (not including switching to the poorly-scaling javassist) please post - this issue is a complete blocker for us.

thanks!
-nikita

Indeed, String "net.sf.cglib" is not being replaced when hibernate-cglib-repack is being built:


c:\code\hibernate\hibernate-cglib-repack-2.1_3\target>javap -c -classpath . org\hibernate\repackage\cglib\proxy\Enhancer

Compiled from "Enhancer.java"
public class org.hibernate.repackage.cglib.proxy.Enhancer extends org.hibernate.repackage.cglib.core.AbstractClassGenera
tor{
.
.
.
.
118: putstatic #1284; //Field CALLBACK:Lorg/hibernate/repackage/cglib/asm/Type;
121: ldc_w #957; //String [Lnet/sf/cglib/proxy/Callback;
124: invokestatic #1407; //Method org/hibernate/repackage/cglib/asm/Type.getType:(Ljava/lang/String;)Lorg/hibernat
e/repackage/cglib/asm/Type;
127: putstatic #1163; //Field CALLBACK_ARRAY:Lorg/hibernate/repackage/cglib/asm/Type;

He Nikita,

I noticed your post and that you just posted the repackage source in the bug.
But can you tell me how to use it and whay your solution is ?

Regards,
Ed

Please see this link for fix and explanation:
http://opensource.atlassian.com/project ... tion_32329

Yep, just go the confirmation of the bug.
Thanks.

hi everyone

when i replaced the hibernate-cglib-repack-nodep-2.1_3.jar with cglib.jar of 3.2.5 release . it works fine
is it fine to use jars from different versions?

I'm sorry for reviving this old thread, but I'm having the same problems as the person who started this thread. Does someone have a solution which does not include modifying java code and rebuilding the jar-file? I really want to avoid that :).

Our application includes 2 main components, a webapp and a desktop client. When we need data, the client requests information from the webapp (which offers a few services to retrieve the necessary data). First, I included cglib, but when i transferred the necessary objects to the client, I got the error "NoClassDefFoundError" for InvocationHandler. To get around that, I added the hibernate-cglib-repack library, but then I received "CGLIB enhancement fail".

I'm getting a bit desperate tbh :).