[hibernate-dev] Why cglib was replaced with javassist?

[Nikita Tovstoles]

Concern over CGLIB's inactivity is certainly valid. However, our internal load-testing of javassist (a few months back) revealed that the library's perf characteristics aren't quite ready for prime time. In some cases, our system performed 2x faster with cglib v. javassist. I don't recall the exact reason why, but possibly this was due to excess synchronization in javassist code (I could be wrong about this though).

-nikita

-----Original Message-----
From: hibernate-dev-bounces at lists.jboss.org [mailto:hibernate-dev-bounces at lists.jboss.org] On Behalf Of Chris Bredesen
Sent: Friday, May 29, 2009 7:30 AM
To: hibernate-dev at lists.jboss.org
Subject: Re: [hibernate-dev] Why cglib was replaced with javassist?

First result from a search in JIRA reveals this....

http://opensource.atlassian.com/projects/hibernate/browse/HHH-2506

So I think that's your answer :)

-CB

Unmesh joshi wrote:
> hi,
> 
> Till hibernate 3.2 cglib was default bytecode provider. why was it 
> changed to javassist?
> 
> thanks,
> unmesh
> 
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