JAX-WS Asynchonous client techniques for calling web services?

Callback : implementation is not straight forward. - Advantage: this approach is more elegant/systematic comapred to the polling approach. - Disadvantage: the client should have a mechanism so that the server can call it back using the callback.

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.