Seeing data corruption when using ChannelHandlerContext.set/getAttachement API

[brunodecarvalho]

You shouldn't be using @ChannelPipelineCoverage at all, since it has been
deprecated :)

>From the documentation:
"Deprecated. Use the ChannelHandler.Sharable annotation instead."

Here's the doc on @Sharable:
http://docs.jboss.org/netty/3.2/api/org/jboss/netty/channel/ChannelHandler.Sharable.html

As a reminder, @Sharable is purely informative! Nothing keeps you from
creating a @Sharable annotated channel handler for each pipeline/channel.
A good example example is a byte counter channel handler:
- use the same instance in all the channels and you get a global byte
counter;
- use an instance per channel and you get per-channel statistics.


Bruno
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