Java library for Apple push notifications (APNs)?

Question

Java

What library do you use to push notifications to Apple devices and why?
I found 3:
1) relayrides.github.io/pushy
2) https://code.google.com/p/javapns/
3) https://github.com/notnoop/java-apns
2 and 3 don't seem to maintained and abandoned.
and 1 is not very friendly with tomcat, which is important to me.

Answer 1

I personally use (2) JavaPNS 2.2 as it is very flexible and quite simple. Also in preparation for release version 2.3, currently available as a Beta version, last commit in December 2014.