This category holds links on operating systems (OSs) based on the programming language Java. Java is an object-oriented (OO) language, mostly, except for classes and primitives. All Java OSs make some sort of claim(s) to use the OO aspects of Java. Since Java is an OO language, all OSs based on it are OO, to greater or lesser amounts.
To this category, please submit links about only Java operating systems. Other links about Java go to: Computers/Programming/Languages/Java.