This is a Java OS project. It is a microkernel operating system with both the kernel and applications implemented using the Java programming language. This library consist of a JDK, which people can use to build they own software for the operating system.
Run following command to get the source code:
git clone git://s55969da3.adsl.online.nl/jx/os.git
This is a NetBean projecct. It requires compiler and jcore.