A collection of lightweight and highly specialized libraries for java.

Continue "mission" of SLF4J. Provide the same service for other development aspects.

• contract - method and class contract support (Assert/Argument)
• conversion - general purpose converter interface and it's infrastructure
• reflection - simplify reflection API usage
• support - support library for other modules
• model - general purpose model
• binding - general purpose binding (experimental)
• validation - genral purpose validation (experimental)

Each library has clear focus on particular aspect. Library evolution should not change this.

Provide only essential functionality.

Libraries shold not depend on particular context (framework, other library, UI technology, etc.) and should be suitable for mobile as well as large enterprise applications.

Each library includes main module and optional support module.

Main module:

• defines core interfaces and classes
• does not provide "useful" implementaions
• does not provide helper classes, factories, syntax sugar, etc.

Optional module:

• provides useful implementations
• privides factories and helper classes