Is it required to generate java classes to use spring-ws client?

Spring-WS lets you work with several different representations of the message payloads, JAXB is just one of them. You can also use (for example) raw DOM objects if you choose, or a few other options.

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.