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Software change contracts

Published: 11 November 2012 Publication History

Abstract

Incorrect program changes including regression bugs, incorrect bug-fixes, incorrect feature updates are pervasive in software. These incorrect program changes affect software quality and are difficult to detect/correct. In this paper, we propose the notion of "change contracts" to avoid incorrect program changes. Change contracts formally specify the intended effect of program changes. Incorrect program changes are detected when they are checked with respect to the change contracts. We design a change contract language for Java programs and a dynamic checking system for our change contract language. We conduct a preliminary user study to check the expressiveness of our change contract language and find that the language is expressive enough to capture a wide variety of real-life changes in three large software projects (i.e., Ant, JMeter, log4j). Finally, our contract checking system detects several real-life incorrect changes in these three software projects via runtime checking of the change contracts.

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D. Qi, J. Yi, and A. Roychoudhury. Software change contracts. Technical Report TRE3/12, National University of Singapore, 2012. Available at https://dl.comp.nus.edu.sg/dspace/handle/1900.100/3588.
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cover image ACM Conferences
FSE '12: Proceedings of the ACM SIGSOFT 20th International Symposium on the Foundations of Software Engineering
November 2012
494 pages
ISBN:9781450316149
DOI:10.1145/2393596
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Publication History

Published: 11 November 2012

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Author Tags

  1. JML
  2. change contract
  3. regression testing
  4. software evolution

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Overall Acceptance Rate 17 of 128 submissions, 13%

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