Are you using JSON-B (the "official" JSON-Binding API for #java), possibly as part of or together with Jersey, #Payara or #GlassFish?
Eclipse YASSON is one of very few implementations of the JSON-B API, and it is DESPERATELY SEEKING HELPING HANDS!
If you like coding in Java, and if you like open source, this might be a good starter project for you!
PLEASE HELP FIXING BUGS IN YASSON