Java for Embedded, Real-Time Systems

Java paradigm to object oriented programming, memory management and secure management of complex system design make is popular for desktop applications. It is true for embedded system, todays embedded system extend the complexity of system design with timing and deployment constraints. J2ME is considerably used in small embedded device, its Connected Limited Device Configuration is used for devices with limited memory while Connected Device Configuration profile is used for shared network devices. Further deployment of embedded system with real time system imposed more focus on predictability and timing issues. The Real-Time Specification for Java addresses many features specifically for real-time domain while maintaining the application optimization with limited resources and without affecting the timing predictability. The report describes the challenges faced by the Java for its implementation in real-time systems, then it describes the detail RTSJ specification and its overcoming. Finally for archiving overcoming of RTSJ and additional functionality extra profiles are described.