netty/netty — pull request #2533 by daschl (2014-06-04 07:02:21+00:00)
Title: [codec-memcache] Release extras and double check before release on decode

Motivation
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Extras need to be freed so that they do not hang around longer than needed. Also,
make sure that they are only freed if something is holding onto them.

Modifications
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Free it properly on encode and make sure it can be freed on decode.

Result
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Not leaking on requests and not running into exceptions on decode.