Start with... the apt getting started guide . To go further, you could maybe have a look at the sources of annotation processor used by JPA 2.0 providers to generate the static meta model classes, for example Hibernate's one: o.h.j. JPAMetaModelEntityProcessor.java.
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.