Re: [Springframework-developer] CGLIB memory usage within class loader

[Rob H. <ro...@ca...>]

I'll look at the Hibernate code as well it may be that proxy classes 
aren't getting reused as often as possible.

Rob

Seth Ladd wrote:

>On Tue, 19 Oct 2004 14:05:47 -0400, Rob Rudin <rob...@ur...> wrote:
>  
>
>>Juergen - we found ourselves having the same problem with
>>creating contexts per test method, though we weren't using CGLIB
>>proxies through Spring. CGLIB was still involved because of
>>Hibernate, and we found that the JVM for the integration test
>>would run out of memory after about 20-25 tests that each
>>created a new context and then did some operations involving
>>Hibernate. We ended up extending TestCase and TestSuite so that
>>a single context is created and shared among test methods; this
>>helped us get around the problem.
>>
>>We also get this problem when restarting just the webapp in
>>Tomcat. I know this was discussed before, and I thought we
>>shouldn't be affected because we only use JDK proxies, but it
>>still occurs for us.
>>
>>Is there any chance that this will eventually be fixed in CGLIB?
>>We can get by with one context for all test methods, but as you
>>state, it would be nice for it not to be a problem when each
>>test method does need to create its own context.
>>    
>>
>
>We also have experienced this problem.  We had to create one single
>ApplicationContext for all tests.  Otherwise... BOOM... OOM.
>
>And we still see OOM w/ redeployments in Tomcat.  The more I look into
>it, the more it points to a CGLIB problem from Hibernate.  Only when I
>include Hibernate into my deployments or somehow use CGLIB do I get
>OOM after a few redeployments or test runs.
>
>Seth
>
>
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