Static Analysis for Understanding Shared Objects in Open Concurrent Java Programs

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Executive Summary

Concurrent programming with shared memory in an object-oriented language such as Java is notoriously difficult. Therefore, it is important to study new program understanding techniques for concurrent object-oriented languages. This paper studies shared objects in open concurrent Java programs. First, it proposes a classification of shared objects into three categories: central, owned and distributed. Second, it presents a new static analysis that infers central, owned and distributed objects, as well as experiments with the analysis.

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