llamafirst writes "Guidewire Software released the Gosu programming language for public availability. Gosu is a general-purpose programming language built on top of the Java Virtual Machine (JVM). It is object-oriented, static typed, imperative, and 100% Java compatible (use/extend Java types, implement Java interfaces, compile to Java bytecode). It has type inference (very readable code yet static typing!), in-line functions that you can pass as objects (closures / lambda expressions / blocks), enhancements (inject methods + properties, even on Java types!), and simplified generics. Gosu is provided via the Apache License v2.0. The language itself is not yet open source, although that is planned for a future community release. You can read a complete introduction to the Gosu language, a comparison to other languages, and syntax differences from Java."