[jboss-user] [Management, JMX/JBoss] - Management interface to webapps

[nappinc]

We have an existing J2EE 1.4 (servlets/JSP only) web application we'd like to add a management interface to, so application server administrators can manage our application via the JBoss JMX/Web Console (get status, alter configuration, get monitoring stats).

I've been advised to create a new .sar file containing our JMX MBeans, but my question is how do we integrate this with our web application? How do I configure the classloading?

Our new ear file is as follows:

 - main application (.war)
 - separate configuration application (.war)
 - new JMX MBeans (.sar)

The two .war files need to run under isolated classloaders, to prevent clashes of code and libraries. How can I configure the .sar to have access to the main application's classes? The wiki seemed to suggest that classloading can only be specified at one level - in an ear file that would be in the jboss-app.xml - and lower levels - the .war's and .sar would have settings ignored.

I don't really want to use Unified classloading - that seems to be all or nothing - because that also breaks certain parts of our application and prevents us from being able to deploy more than one copy of our applciation on a single app server instance.

Am I right in thinking this is even possible in JMX? Is this a sledgehammer to crack a coconut?

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