ferite is a modern, lighweight, portable, threadsafe scripting engine with a language that is very easy to pick up and leverage for any task. It\'s been designed for rapid deployment in other programs as well as stand alone use.
JamVM is a compact Java Virtual Machine conforming to the JVM specification edition 2 (blue book). It is extremely small - stripped on PowerPC 150K, Intel 100K. However, unlike other small VMs it supports the full spec, inc. object finalisation and JNI.