The two warnings about getters and setters seem to indicate you are using class flies that are out of sync with your current type system. Have you tried to delete and recreate these classes? I occasionally get this error when I re-generate (JCasGen) on top of an existing file, it merges instead of rewrites the file so artifacts from prior type definitions can exist.
This can be why the system gets a NPE during execution, your code may be using these features still.
