Whiteoak 2.1 Build 184

Java is nominally typed-a type (i.e., a class or an interface) is compatible with another if it is declared, directly or indirectly as such, by means of keyword extends or implements.
Whiteoak is a Java extension that introduces structural type equivalence and subtyping into the language: In a nutshell, a struct A in Whiteoak is similar to an interface of Java except that a class, interface, or another struct B is compatible with A if the repertoire of public function and data members of B is a superset of that of A.
Whiteoak is a backward compatible extension of Java 1.6 and it will generate standard .class files so the compiled program can run on any JVM.

Main features:
- Retroactive abstraction of classes via structural subtyping (aka: Structural conformance)
- First-class support for virtual constructors, virtual fields, virtual static methods
- Composition of new structural types through type operators
- Structural types with concrete methods allow client code to attach new behavior to existing objects
- Composition of new objects from existing ones using mixin- or traits- like semantics