Question 1: Is it possible to do a partial application update? Let's say I have these modules: moduleA.jar moduleB.jar I only want to update these classes: | com.somedomain.someapp.SomeClass | com.somedomain.someapp.SomeClassUtil | in moduleA.jar. | com.somedomain.someapp.helper.HelperClass | in moduleB.jar Does JBoss come with some utility that will allow me to replace that class? Question 2: Can you update an application w/o shutting down the whole server? I stopped the application through the JMX console... and tried to replace moduleA.jar... but it said that the file was in use, even though the application was stopped. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3968506#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...