Google App Engine - I have to restart the development server anytime I make changes to a servlet

I have to restart the development server anytime I make changes to a servlet. Is there a way 开发者_运维问答I can make it so I don't have to do this? Restarting the dev app server takes about 20 seconds for my project.

AFAIK, Hot deployment is not supported as of now.

I was using the netbeans plugin, and once I moved over to using the Eclipse plugin, I no longer had to restart the server every change.