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From "Hammad Sophie" <>
Subject hot deployment questions
Date Mon, 28 Aug 2006 11:53:42 GMT

I've searched through and read a number of messages related to 'hot
deployment'. All of them deal with hot deploying the ENTIRE webapp, not
just particular classes in my webapp. 

We use tomcat as the application server/container for our application.
We use a single production server running a single instance of tomcat on
client sites. Frequently we run into a situation where a bug fix must be
deployed without restarting tomcat or even reloading the webapp. This
works well when a patch contains only JSPs. We simply unzip/copy the
jsps into the webapps/blah directory and tomcat recompiles them itself
automatically. However, alot of times, our patches also contain our
class files [located in webapps/blah/WEB-INF/classes]. Currently we can
copy these files to the appropriate directory within tomcat, but they do
not get picked up unless tomcat is restarted or the webapp redeployed.
Is there any way to 'hot deploy' certain classes within a webapp such
that the entire webapp does not reload, but only the new classes are
picked up and used?



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