Implementation
An implementation of the RTSJ must include the javax.realtime packages. It will almost certainly include a special JVM, and it might include a compiler that can help find memory reference errors.
Any compiler can make classes that use the RTSJ, and special classes on an ordinary Java platform can pretend to conform to the RTSJ. Those were important design goals. We wanted RTSJ users to be able to do a lot of development on standard IDEs.
Class libraries can implement the RTSJ APIs and provide some of the RTSJ functions, but they cannot provide all the services. A true RTJS implementation includes enhancements to the JVM. There are no new bytecodes, but it would be difficult or impossible to enforce memory access rules without enhancing ...
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