Staccato: A Bug Finder for Dynamic Configuration Updates (Artifact)

This artifact is based on Staccato, a tool for finding errors in dynamic configuration update (DCU) implementations. Dynamic configuration update refers to configuration changes that occur at runtime without program restart. Errors in DCU implementations occur when stale data— computed from old configurations—or inconsistent data—computed from different configurations—are used. Staccato uses a dynamic analysis in the style of taint analysis to detect these errors. Staccato supports concurrent programs running on commodity JVMs. We evaluated Staccato on three open-source applications and found errors in all of them. 1998 ACM Subject Classification D.2.9; Software configuration management