Journal of KIISE:Software and Applications (한국정보과학회논문지:소프트웨어및응용)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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Deterministic Testing of Java Multi-Threaded Programs through Program Transformation

프로그램 변환을 통한 Java 다중 스레드 프로그램의 결정적 테스팅

  • Published : 2000.06.15
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Abstract

Concurrent programs, which are composed of threads that can operate concurrently, are intrinsically nondeterministic. Therefore, we can not directly apply classical testing or debugging techniques developed for sequential programs to concurrent programs because of the nonreproducibility due to nondeterminism. In this paper, we present a source tranformation method to guarantee the reproducibility of multi-threaded programs written in Java programming language. Once a mutli-threaded program has been transformed according to the transformation rules, we can force the program's execution to follow the given sequence of synchronized methods repeatedly and reduce the efforts to find the source of the errors. In addition, we present a method for checking the feasibility of the synchronized method sequence to be replayed.

동시에 수행 가능한 여러 개의 스레드들로 구성된 병렬 프로그램은 본질적으로 비결정성을 내포하고 있다. 따라서, 이러한 비결정성에 기인한 비반복성때문에 순차적 프로그램을 위해 개발되었던 기존의 테스팅 테스팅 방법이나 디버깅 방법을 병렬 프로그램에 그대로 적용할 수 없다. 이 논문에서는 Java 다중 스레드 프로그램의 재수행성을 보장하기 위하여 대상이 되는 프로그램을 원시코드 수준에서 변환하는 방법을 제시한다. 일단 변환 규칙에 따라 변경이 된 프로그램은 주어진 동기화 메소드 시퀀스를 강제적으로 반복 수행할 수 있어 오류의 원인을 찾는 노력을 줄일 수 있다. 또한, 재실행하고자 하는 동기화 메소드 시퀀스가 실제 주어진 프로그램에서 수행 가능한지를 판별하는 방법을 제시한다.

Keywords

References

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