Is it worth to obfuscate java web application?

No. The code is stored on the server where external users (hopefully) don't have access to it. You may want to obfuscate the JavaScript if you feel it's worth the (minimal) IP protection.

The best thing is so make sure your server security is up to scratch and you don't have open access to your application directories (which shouldn't happen anyway). More.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.