Jainja is a JVM (Java Virtual Machine) written in Java
Jainja is a JVM (Java Virtual Machine) written in Java.
The VM is developed by using the smallest possible subset of Java in order to run on top of multiple environments : Java SE, JavaME, Android, Javascript, and even natively.
RockScript is the world's smallest Java-based JavaScript interpreter, runs smoothly in any J2ME phones. The binary size of core engine including native objects/methods is less than 25K (obfuscated & JAR'ed). It can be integrated into any J2ME apps.