Yesterday, my program worked. Today, it does not. Why?
ESEC/FSE-7 Proceedings of the 7th European software engineering conference held jointly with the 7th ACM SIGSOFT international symposium on Foundations of software engineering
Change impact analysis for object-oriented programs
PASTE '01 Proceedings of the 2001 ACM SIGPLAN-SIGSOFT workshop on Program analysis for software tools and engineering
Change impact analysis for aspect-oriented software evolution
Proceedings of the International Workshop on Principles of Software Evolution
Whole program Path-Based dynamic impact analysis
Proceedings of the 25th International Conference on Software Engineering
Chianti: a tool for change impact analysis of java programs
OOPSLA '04 Proceedings of the 19th annual ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications
Crisp: A Debugging Tool for Java Programs
ICSM '05 Proceedings of the 21st IEEE International Conference on Software Maintenance
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As Aspect-Oriented Programming (AOP) wins more and more popularity, there is increasing interest in using aspects to implement crosscutting concerns in object-oriented software. During software evolution, source code editing and testing are interleaved activities to assure code quality. If regression tests fail unexpectedly after a long session of editing, it may be difficult for programmers to find out the failure causes. In this paper, we present Flota, a fault localization tool for AspectJ programs. When a regression test fails unexpectedly after a session of source changes, Flota first decomposes the differences between two program versions into a set of atomic changes, and then identifies a subset of affecting changes which is responsible for the failure. Programmers are allowed to select (and apply) suspected changes to the original program, constructing compliable intermediate versions. Thus, programmers can re-execute the failed test against these intermediate program versions to locate the exact faulty changes by iteratively selecting, applying and narrowing down the set of affecting changes. Flota is implemented on top of the ajc compiler and designed as an eclipse plugin. Our preliminary empirical study shows that Flota can assist programmers effectively to find a small set of faulty changes and provide valuable debugging support.