I want to change a class file from the application that is deployed on j2ee server but don�t want to restart the server. Is there any tool available which can change the deployed class file on the fly without restarting the server?
i mean in production without repdeploying the all application, just i want to replace a jar file from web-inf\lib. is it possible any aplication server provide such facility
Again, most application servers support hot deployment, so consult your application server documentation.
That aside, a production server shouldn't have hot deployment enabled, nor would a change to production code normally be run out via hot deployment: too much scope to mess live data up. An prudent update to an application in production would be done by taking the application down.
