Only released in EOL distros:
rosserial_java
Package Summary
 Documented 
A Java-based implementation of the ROS serial protocol.
- Author: Adam Stambler
 - License: BSD
 - Source: hg https://kforge.ros.org/rosserial/rosserial_java (branch: default)
 
Contents
Overview
The rosserial_java package contains a Java implementation of a PC-side rosserial connection. It automatically handles setup, publishing, and subscribing for a connected rosserial-enabled device.