| Summary: | Region-based memory management offers several important advantages over garbage-collected heap, including real-time performance, better data locality and efficient use of limited memory. The concept of regions was first introduced for a call-by-value functional language by Tofte and Talpin, and has since been advocated for imperative and object-oriented languages. Scope memory, a lexical variant of regions, is now a core feature in a recent proposal on Real-Time Specification for Java (RTSJ). In this paper, we propose a region-based memory management system for a core subset of Java. Our region type analysis can completely prevent dangling references and thus is ready to cater for the no-dangling requirement in RTSJ. Our system also supports modular compilation, which is an important feature for Java, but was missing in recent related work.
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