Groovy

Apache Groovy is a powerful, optionally typed and dynamic language, with static-typing and static compilation capabilities, for the Java platform aimed at improving developer productivity thanks to a concise, familiar, and easy to learn syntax. It integrates smoothly with any Java program and immediately delivers to your application powerful features, including scripting capabilities, Domain-Specific Language authoring, runtime, and compile-time meta-programming and functional programming.

Features and Highlights

Flat learning curve
Concise, readable, and expressive syntax, easy to learn for Java developers.

Smooth Java integration
Seamlessly and transparently integrates and interoperates with Java and any third-party libraries.

Vibrant and rich ecosystem
Web development, reactive applications, concurrency / asynchronous / parallelism library, test frameworks, build tools, code analysis, GUI building.

Powerful features
Closures, builders, runtime & compile-time meta-programming, functional programming, type inference, and static compilation.

Domain-Specific Languages
Flexible & malleable syntax, advanced integration & customization mechanisms, to integrate readable business rules in your applications.

Scripting and testing glue
Great for writing concise and maintainable tests, and for all your build and automation tasks.

The Groovy programming language is supported by the Apache Software Foundation and the Groovy community.