Apache HttpComponents Client
The Apache Commons Codec package contains simple encoder and decoders for various formats such as Base64 and Hexadecimal. In addition to these widely used encoders and decoders, the codec package also maintains a collection of phonetic encoding utilities.
Date and time library to replace JDK date handling
OSGi Core Release 6, Interfaces and Classes for use in compiling bundles.
Spring TestContext Framework
The API for plugins - Mojos - development.
Compiler for the Scala Programming Language