Google XRuby - Ruby to Java bytecode compiler

XRuby is the first Ruby to Java compiler which compiles Ruby source code (.rb) to Java bytecode (.class).

• Inline-Java
• JBasic - A little bit of BASIC
• PHP-Java Bridge
• BSF - Bean Scripting Framework
• Jelly - a tool for turning XML into executable code
• JRuby - Java powered Ruby implementation
• Hecl
• Pnuts
• The Tcl Java Project
• BeanShell - Lightweight Scripting for Java
• Jess - the Rule Engine for the JavaTM Platform
• Judo - practical, functional scripting language
• Rhino: JavaScript for Java
• The Jython Project
• Groovy - An agile dynamic language for the Java Platform
• LuaJava
• The Sleep Scripting Project
• Seppia
• ObjectScript