GWT SyncProxy allows you to access GWT RPC services (e. G methods) from pure Java (not JSNI) code. Thus you can use it to test your RPC interface.
If you are mostly worried about how well your backend code performs, you could just instantiate the class that implements your service directly.
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.