Modern software applications are highly configurable, allowing configuration options to be changed even during program execution. When dynamic configuration updating is implemented incorrectly, program errors can result. These program errors occur primarily when stale data—computed from old configurations—or inconsistent data—computed from different configurations—are used. We introduce Staccato, the first tool designed to detect these errors. Staccato uses a dynamic analysis in the style of taint analysis to find the use of stale configuration data in Java programs. It supports concurrent programs running on commodity JVMs. In some cases, Staccato can provide automatic bug avoidance and semi-automatic repair when errors occur.
We evaluated Staccato on 3 open-source applications that support complex reconfigurability. Staccato found multiple errors in all of them. Staccato requires only modest annotation overhead and has moderate performance overhead.
Fri 22 JulDisplayed time zone: Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna change
Fri 22 Jul
Displayed time zone: Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna change
13:30 - 15:20 | Session 8Research Track at Auditorium Loyola Chair(s): Matthias Keil University of Freiburg, Eric Jul Alcatel-Lucent Bell Labs | ||
13:30 25mTalk | Composing Interfering Abstract Protocols Research Track Filipe Militão Carnegie Mellon University & Universidade Nova de Lisboa, Jonathan Aldrich Carnegie Mellon University, Luís Caires FCT / Universidade Nova de Lisboa Link to publication DOI Pre-print Media Attached | ||
13:55 25mTalk | Fine-grained Language Composition: A Case Study Research Track Edd Barrett King's College London, Carl Friedrich Bolz-Tereick King's College London , Lukas Diekmann King's College London, Laurence Tratt King's College London Link to publication DOI Pre-print Media Attached | ||
14:20 25mTalk | One Way to Select Many Research Track Link to publication DOI Media Attached | ||
14:45 25mTalk | Staccato: A Bug Finder for Dynamic Configuration Updates Research Track Link to publication DOI Media Attached | ||
15:10 10m | Adjourn Research Track | ||