[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3236) Prevent classloader leaks to JBC and JGroups when using a shared cache

[Brian Stansberry (JIRA)]

Prevent classloader leaks to JBC and JGroups when using a shared cache
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                 Key: HHH-3236
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3236
             Project: Hibernate3
          Issue Type: Sub-task
          Components: caching (L2)
            Reporter: Brian Stansberry
            Assignee: Brian Stansberry
             Fix For: 3.3.0


JGroups spawns a number of threads when a channel is created. JBC can spawn an eviction thread as well. A newly spawned thread inherits its thread context classloader from the thread that spawned it.  If a shared JBC CacheManager is used (e.g. in an appserver) it is important to set the TCCL away from any application classloader and to the CacheManager's TCCL before starting a cache.  This ensures that the application classloader doesn't leak to any JBC or JGroups threads.

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