https://issues.apache.org/bugzilla/show_bug.cgi?id=56583
Bug ID: 56583
Summary: Classloader leak in AsyncAppender
Product: Log4j
Version: unspecified
Hardware: PC
OS: Mac OS X 10.4
Status: NEW
Severity: normal
Priority: P2
Component: Appender
Assignee: log4j-dev@logging.apache.org
Reporter: nik...@plumbr.eu
AsyncAppender starts a Dispatcher thread, but I was unable to find any hints
about when and how this thread should stop. Leaving this thread running after
web application undeploy will create a classloader leak.
In addition to that, AsyncAppender uses protected boolean closed field to
communicate, that appender is now closed and so Dispatcher thread should stop.
But this field is not volatile, set from one thread and is read from another
thread. Which does not work and may be one of the reasons of the leak in the
first place.
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