JX (operating system)
|Developer||University of Erlangen|
|Source model||Open source|
|Latest release||0.1.1 / October 10, 2007|
|License||GPLv2 or later|
|Official website||JX Project|
JX is implemented as an extended Java Virtual Machine (the JX Core), adding support to the Java system for necessary features such as protection domains and hardware access, along with a number of components written in Java that provide kernel facilities to applications running on the computer. Because Java is a type-safe language, JX is able to provide isolation between running applications without needing to use hardware memory protection. This technique, known as language-based protection means that system calls and inter-process communication in JX does not cause an address space switch, an operation which is slow on most computers. JX runs on standard PCs, with support for a limited range of common hardware elements. It is open source software, developed by the University of Erlangen.
The primary benefits of JX include:
- a small trusted computing base (TCB) results in a high security system
- lack of address space switching enables high performance compared to most microkernel systems
- Michael Golm; Meik Felser; Christian Wawersich; Jürgen Kleinöder. "JX - A flexible Java Operating System (poster)". University of Erlangen. Retrieved 2007-04-21.
- "JX: the fast and flexible Java OS". University of Erlangen. Retrieved 2007-04-21.
- Golm, Michael; Meik Felser; Christian Wawersich; Jürgen Kleinöder (13 June 2002). "The JX Operating System". Proceedings of the 2002 USENIX Annual Technical Conference. Monterey, CA: USENIX. Retrieved 2007-04-21.
- Project home page
- JX Poster
- The JX Operating System
- Execution Time Limitation of Interrupt Handlers in a Java Operating System
- Ubiquitous Computing and the Need for a New Operating System Architecture
- The Structure of a Type-Safe Operating System
- A Java Operating System as the Foundation of a Secure Network Operating System