Chetan Mehrotra created SLING-3360:
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Summary: Bundle to detect classloader leaks
Key: SLING-3360
URL: https://issues.apache.org/jira/browse/SLING-3360
Project: Sling
Issue Type: New Feature
Components: Extensions
Reporter: Chetan Mehrotra
Assignee: Chetan Mehrotra
At times it can happen that bundle might leak classloader due to improper
cleanup. This was recently discussed on DL [1].
To enable detection of such bundles we can have a bundle which
1. Have a custom bundle listener. This would maintain some structure
around bundle
2. Use Java Phantom reference [1] to register a callback for GC of
classloader associated with the bundle. Upon gc callback we remove the
information
Then have a web console plugin which can look into the current data
structure maintained by the listener. It would then check the state
against actual active bundle and flag the suspects. And if left over a
period of time can easly mark out stale bundles which are leaking.
Should not incur any performance cost
[1] http://sling.markmail.org/thread/2wg7ijus6ib7ij5t
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