JPHP - an implementation of PHP on Java VM
Learn Java the easy way!
An open source Java decompiler Gui for Procyon
Java interpreter with Forth-like syntax, use it for testing java libs
The world's first evidence-oriented programming language
Easy reskin, clone and build android app.
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An object-oriented script language to embed in any application
Java Bytecode Viewer & Decompiler
HATE's an ASN.1 Text Editor.
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ApkDissector is a Java Based Android APK Decompiler
Pure Trait-based Programming on the Java Platform
COOL C# framework
a DSL for type systems, reduction rules, interpreters for Xtext langs