I\'m looking for a simple to use system in Java which creates a REST service for me. So I found dropwizard but as far as I can use google it turns out it lacks hot deployment al
You don't have to use the shade plugin to run your service. You could just compile as a regular jar file and I think that would let you use your IDEs hot deployment features.
Have you ever tried JRebel ? They have JAX-RS support as well...
Not an answer, but I wrote up an article detailing how to use git to push a Dropwizard project to your server and for it to initiate a hot replacement. It relies on git hooks and running Maven via a script on the server.
You can find the details about it here: http://gary-rowe.com/agilestack/2013/02/14/how-to-deploy-dynamic-sites-with-git/