The project provides an implementation of a programming language.

Eclipse LSP4E

The project includes the necessary code to integrate any language server (conforming to the Language Server Protocol specification) in the Eclipse IDE, interacting with the language server: it orchestrates the request to the language servers and presents the response in the usual IDE metaphors so users can manipulate them. The default integration is to provide features into the Platform's Generic and Extensible editor, but some code may be used as API to let integration be done with other Eclipse-based editors. It's build on top of Eclipse LSP4J.

Papyrus for xtUML

Papyrus-xtUML is a tool which supplies the capability to edit, execute and translate xtUML models.  Executable, translatable UML (xtUML) is an extension to UML based upon the Shlaer-Mellor Method of Model-Driven Architecture (MDA), which supports a powerful approach to Model-Driven Development (MDD). Papyrus-xtUML provides the system design community with access to xtUML editing, execution and translation capabilities, along with a forum to advance the use of this methodology.

Eclipse Titan

Titan is a TTCN-3 compilation and execution environment with an  Eclipse-based IDE. The user of the tool can develop test cases, test execution logic and build the executable test suite for several platforms.

Eclipse Lua Development Tools

Eclipse Lua Development Tools (LDT) is about providing Lua developers with an IDE providing the user experience developers expect from any other tool dedicated to a static programming language.

Like many other dynamic languages, Lua is so flexible that it is hard to analyze enough to provide relevant and powerful tooling.
LDT is using Metalua, to analyze Lua source code and provide nice user assistance.

Eclipse Handly

The Eclipse Handly project provides basic building blocks for handle-based models, with an emphasis on language-specific source code models of the underlying Eclipse workspace. It allows creating highly scalable, robust, and thoroughly optimized models similar in design principles to the tried-and-tested Java model of Eclipse Java development tools while reducing programming effort, fostering software reuse, and enabling interoperability.

Handly is designed for flexibility and can be used to create source code models for practically any language, whether general-purpose or domain-specific; it is compatible with any parsing technology. Since version 0.5, the model implementor has complete control over the model's base-level API, including the ability to implement a preexisting handle-based model API. At the same time, the provided uniform meta-level API establishes a common language and makes it possible for IDE components to work in a generic way with any Handly-based model.

Eclipse C/C++ Development Tooling (CDT)

The Eclipse CDT Project provides a fully functional C and C++ Integrated Development Environment based on the Eclipse platform. Features include: support for project creation and managed build for various toolchains, standard make build, source navigation, various source knowledge tools, such as type hierarchy, call graph, include browser, macro definition browser, code editor with syntax highlighting, folding and hyperlink navigation, source code refactoring and code generation, visual debugging tools, including memory, registers, and disassembly viewers.


AspectJ is a seamless aspect-oriented extension to the Java™ programming language. It is Java platform compatible easy to learn and use.