Mac OS Runtime for Java (MRJ) is Apple's implementation of the Java Virtual Machine (JVM), based on Sun Microsystems' Java 1.1.8 specification. MRJ provides the runtime software needed to run Java applets and applications, and the Apple Applet Runner, a simple utility for running applets without the overhead of a browser.
What's new in version 2.2.6
Provides fixes that allow Oracle 11i client applications to communicate with Oracle's application servers over HTTPS. It is recommended that you only update to MRJ 2.2.6 if you need to use Oracle 11i client applications over HTTPS and that your Oracle software is properly configured to support HTTPS communication with Mac OS 9 clients.