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loading a jar in runing server.

 
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Hi Java Gurus,

I have one query.
I have one j2ee server runing in solaris environment.
I have one one library (jr file) that I have to update in the server.
Without retsarting the server, Is it possible to update this jar file and the runing server will use this updated jar ?
So far as I know that JVM can not take this updted jar until we restart it. The classloader can load this jar once we restart the server.
But probably there must be a solution that I dont know and you know.

Thanks In Advance...
 
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Not sure if I understand your question completely. Which is fine. But in my interpretation of your question you want to know if you can hot deploy an application in a jar file.

The answer is yes, but it also depends on the Application Server you are using. Most support hot-deployment, so I am going to assume that you are using one of those App Servers.

All you need to do is to copy your new version of the jar file into the deploy directory and it will hot-deploy.

Mark
 
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