org.jboss.netty.internal.LoggerConfigurator is already installed error

[Ross Lambert]

Gentlefolks,

I have a servlet that uses Netty to talk an external bit of software. No big
deal, works fine.

What has me baffled is that now when take the same code and build a
different servlet and deploy it under JBoss 5.1, I get this error:

DEPLOYMENTS IN ERROR:
  Deployment "vfszip:/C:/jBoss/server/default/deploy/dems-gui.war/" is in
error
due to the following reason(s): java.lang.IllegalStateException:
org.jboss.netty.internal.LoggerConfigurator is already installed.

The tale gets weirder still: If I remove netty-3.2.4.Final.jar from the
deployed .war, everything is fine! The servlet will blow if I make any Netty
calls, of course, but it deploys fine and can do everything else OK.

I have tried deploying to two different servers and got the same result, so
it does not appear to be anything peculiar to a single JBoss instance. I
have also Googled this issue and searched the archives and see nothing
relevant. The error message is so long that it a bit hard to narrow the
search, so I could have easily missed something.

Does anybody have any ideas? I'm embarrassed to say how much time this has
cost me already. :-)

Thanks,

== Ross ==



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