I need to deploy multiple J2EE applications onto JBoss. I'm not sure which one is the best option.
Deploying all applications under one folder "jboss4.0\server\default\deploy" or Creating separate folder for each application "jboss4.0\server\APP1\deploy", "jboss4.0\server\APP2\deploy", "jboss4.0\server\APP3\deploy" etc.
It depends, but if you make any new folders not directly inside your deploy directory will require you to change the jboss-service.xml and the DeploymentScanner MBean to include those directories.
if you want you developers to deploy but don't want them to have access to the JBoss directories you can create a URL, WebDav, Network share folder and point the DeploymentScanner to those locations. Check out the comments in the jboss-service.xml right above the DeploymentScanner settings. It most likely will be the last MBean declared in your jboss-service.xml