Fixes per-request AnnotationManager resource leakage by introducing a request context object (#3443)

The AnnotationManagerBean's lifecycle as a stateless bean meant we were
caching some objects across requests. This updates the
AnnotationManagerBean to maintain per-reuqest state explicitly instead
of assuming the bean framework will do it for us.

Co-authored-by: Joseph Alphonso <jalphonso@users.noreply.github.com>

Author: 2 people