Restrictions of Java for embedded real-time systems

Java, with its pragmatic approach to object orientation and enhancements over C, got very popular for desktop and server application development. The productivity increment of up to 40% compared with C++ [E. Quinn et al., (1998)] attracts also embedded systems programmers. However, standard Java is not practical on these usually small devices. This paper presents the status of restricted Java environments for embedded and real-time systems. For missing definitions, additional profiles are proposed. Results of the implementation on a Java processor show that it is possible to develop applications in pure Java on resource constraint devices