Real-time specification for Java (RTSJ)
#rtsj
When the Java Community was formed, the very first effort was the specification for real-time Java,
JSR 1. It was started in 1998. The second version of RTSJ 2.0 is still under review for over than 7 years! The frist version of the spec was completed in about 8 years...
The specification provides additional APIs and
more precision in JVM and library behaviors in the following areas:
• Threads
• Scheduling
• Memory Management
• Synchronization
• Time
• Clocks and Timers
• Asynchrony
• System/Options
The RTSJ is an essential refinement of Java semantics and libraries
for safety-critical applications plus additional APIs to support realtime and embedded programming. These systems are used to protect humans from injury or danger. Safety-critical systems must go through exhaustive testing and a line-by-line code review before certification.
https://www.aicas.com/download/rtsj/rtsj_80.pdf
