fun4j brings functional programming to the JVM. It's a framework that integrates major concepts from functional programming into the Java Platform. It also provides seamless integration of Java with Lisp coding, by using a lisp-to-bytecode compiler.
SLAWscript is a simple interpreted scripting language designed to enable the easy production of command-line applications. It should be able to run on any system where Java (non-Micro Edition) version 1.5 or higher is available.