Github user aledsage commented on the pull request:
https://github.com/apache/incubator-brooklyn/pull/381#issuecomment-66311790
Good spot for the "try three times".
The simultaneous access is things like the OSGi framework deleting lock
files. In `OsgiManager.stop` we first call `framework.stop;
framework.waitForStop`, so I'm not sure what else we should be doing in our
code other than working around this issue.
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