The IBM Toolbox for Java / JTOpen is a library of Java classes supporting the client/server and internet programming models to a system running OS/400, i5/OS, or IBM i.
JTOpenLite is a set of lightweight Java classes suitable for use on mobile devices. It provides Java application access to IBM i: DDM access, basic JDBC access, command call, program call access, etc.
Packages are delivered by following PTF on IBM i platform: V7R2: SI52736 V7R1: SI52734 V6R1:SI52731, SI52732
The latest version is JTopen 8.2, released 10 April 2014.