The development of Safety-Critical Java (SCJ) has introduced a novel programming paradigm designed specifically to make Java applicable to safety-critical systems. Unlike in a Java program, memory management is an important concern under the control of the programmer in SCJ. It is, therefore, not possible to apply tools and techniques for Java programs to SCJ. We describe a new technique that uses an abstract language and inference rules to guarantee memory safety. Our approach does not require user-added annotations and automatically checks programs at the source-code level, although it can give false negatives.
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