Escher is a collection of libraries for X Window System written purely in Java. It consists of an X11 protocol implementation (similar to Xlib for C/C++), and its extensions including GLX, and the OpenGL rendering protocol.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.