InlineCachingCallSite references RubyObjects which are no longer reachable
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Key: JRUBY-2716
URL: http://jira.codehaus.org/browse/JRUBY-2716
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.1.2
Environment: Mac OS X 10.5.3; J2SE 5.0
Reporter: Micah Alles
Attachments: test_ostruct_caching_callsite_mem_leak.rb
In some cases references to RubyObjects which are no longer reachable are not
collected due to a reference to a {{cachedMethod}} in an InlineCachingCallSite.
The cause of the leak was observed by inspecting a memory snapshot of the jruby
process which was taken after pausing execution before the assertion in the
included unit test with a call to {{sleep}}.
Specifically in the included unit test the OpenStruct#thing method looks to be
the one which for which the cachedMethod is created which retains a reference
to the OpenStruct and, therefore, its contents as well.
The included unit test fails on trunk (r7037) and the 1.1.2 branch.
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