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From "Ciaran Jessup (JIRA)" <j...@apache.org>
Subject [jira] Created: (ODE-574) Memory leak when Un-deploying processes that contain XSL stylesheets
Date Tue, 07 Apr 2009 20:49:13 GMT
Memory leak when Un-deploying processes that contain XSL stylesheets

                 Key: ODE-574
                 URL: https://issues.apache.org/jira/browse/ODE-574
             Project: ODE
          Issue Type: Bug
          Components: BPEL Compilation/Parsing, BPEL Runtime
         Environment: N/A
            Reporter: Ciaran Jessup

Currently if the BPEL process contains any XSL stylesheets it will not free up *all* the memory
that was allocated during the compilation/dehydration of the process.  This seems to be because
there is a cache of XSLTemplates stored in the XSLTransformHandler, and these XSLTemplates
can sometimes contain (transitive) references back to the OProcess object instances (via for
example the URIResolvers/XPAth Expressions).   Unfortunately this cache lives forever (crucially
even after the process has been un-deployed)  because of this the object graph hanging from
the OProcess object instance is never available for the GC to pick-off.

There is also another reference issue in the ErrorListener that is associated with the XSLTransformHandler
instance, but I don't really understand that bit of code just as yet, a patch for the former
issue follows, I'm reviewing the ErrorListener issue currently.

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