Norman Maurer 8c90d602d7 [#3899] Fix javadoc to use netty 4 API.
Motivation:

The javadoc of ByteBuf contained some out-dated code.

Modifications:

Update code example in javadoc to use netty 4+ API

Result:

Correct javadocs
2015-07-03 14:18:53 +02:00
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