Mac OS Runtime for Java was Apple's proprietary virtual machine for Java-based applications in the classic Mac OS. Both a runtime environment and a software development kit (SDK) are available.
Implementations
• Java 1.0.2 with Mac OS Runtime for Java v 1.5.1 (starting with version 1.5, MRJ included a JIT compiler) • Java 1.1.8 with Mac OS Runtime for Java v 2.2.6 [http://support.apple.com/kb/DL1184 ==References==