At first, I wanted a tool that will pack everything into one simple .jar file and I can deploy my apps on web thrugh JWS more easily then. However, as far as I was playing with JWS vs. tools to pack app into one .jar, I found that this approach brings more problems than solutions. Whatever, tools I found for packing apps as one .jar are: - JPackItJPackIt - best I found, but has serious issues with JWS, and JWS is generally only case in which I'm interested in deploying app as single JAR file. - Fat JarFat Jar - is great, but drawback/advantage is that it is Eclipse plug-in. I just love Eclipse, but I need to do my work also on other IDEs, so I would had welcome separate utility for that. It seems Fat Jar is using One-JAR under its hood. - Maven Assembly Plug-inMaven Assembly Plug-in - looks promising, however I had no time to get into Maven yet (shame on me). I have to try this one, this seems to be the right way to go. - One-JAROne-JAR - I found this one just recently and have not tried it yet. I will post my discoveries soon.. As usual, I encourage anyone who is better involved than me to share few links or hints.