Eclipse Rich Client Platform (RCP)

 The Eclipse Platform is an open and extensible platform for anything and yet
 nothing in particular. It provides a foundation for constructing and running
 integrated software-development tools. The Eclipse Platform allows tool
 builders to independently develop tools that integrate with other people's
 tools so seamlessly you can't tell where one tool ends and another starts.
 .
 This package includes Eclipse Rich Client Platform (RCP), which is the basis
 upon other Eclipse-based applications are built.