[ http://issues.apache.org/jira/browse/LOGGING-65?page=all ]
Dennis Lundberg reopened LOGGING-65:
------------------------------------
> [logging] Disabling of TCCL
> ---------------------------
>
> Key: LOGGING-65
> URL: http://issues.apache.org/jira/browse/LOGGING-65
> Project: Commons Logging
> Issue Type: Bug
> Affects Versions: 1.0.4
> Environment: Operating System: other
> Platform: Other
> Reporter: Dimitry E Voytenko
> Assigned To: Simon Kitching
> Fix For: 1.1.0
>
>
> I separated this request from 35774 as it seems to provide a viable and easy
> solution to a big number of ClassLoader-related problems of using JCL in
> shared
> environments. The solution relies on having an option (configured via system
> properties) to disable TCCL usage and only use LogFactory's ClassLoader. When
> TCCL is disabled, logger implementation and caching should be performed in
> the
> JCL's ClassLoader only (cache will be reduced to a single record). This would
> remove any memory leak issues as well as other inconsitencies (see 35774 for
> some samples).
> There're two main scenarios how JCL is used in the shared environment: a)
> deployed in the shared class loader (shared for Tomcat and UCL for JBoss), b)
> deployed in the application's class loader in the child-first ClassLoader
> setup. In both cases this solution works well and disabled TCCL could even be
> a
> reasonable default (though it depends on other uses). In case of deployment
> within application's classloader (case [b]), two versions of JCL can coexist
> redirecting logs for the application's classes to application's LogFactory
> instance and shared classes to shared LogFactory.
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