FSE 2025
Mon 23 - Fri 27 June 2025 Trondheim, Norway
co-located with ISSTA 2025
Tue 24 Jun 2025 17:10 - 17:20 at Cosmos 3C - MSR 2 Chair(s): DongGyun Han

Feature toggles are conditional variables for controlling the flow of program execution. They enable developers to control feature states, allowing the release of unfinished features to a limited group of users while preserving overall software functionality. Furthermore, the absence of comprehensive best practices, guidelines, or coding standards for feature toggle usage often results in improper implementation, causing code quality issues. Although certain feature toggle usage patterns are prone to toggle-smells, there is no tool as of today for software engineers to detect toggle usage patterns from the source code. In this paper, we present a tool TS-Detector that detects five different toggle usage patterns across ten popular open-source software projects in six different programming languages. We conducted manual evaluation and results show that true positive rate of detecting Spread, Nested, and Dead toggles are 80%, 86.4%, and 66.6% respectively and the true negative rate of Mixed and Enum usages was 100%. The tool can be downloaded from the GitHub repository 1 and can be used following the instructions provided there. The video demonstration can be viewed from the link2 shared.

Tue 24 Jun

Displayed time zone: Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna change

16:00 - 17:40
MSR 2Journal First / Ideas, Visions and Reflections / Research Papers / Demonstrations at Cosmos 3C
Chair(s): DongGyun Han Royal Holloway, University of London
16:00
10m
Talk
Introducing Repository Stability
Ideas, Visions and Reflections
Giuseppe Destefanis Brunel University of London, Silvia Bartolucci UCL, Daniel Graziotin University of Hohenheim, Rumyana Neykova Brunel University London, Marco Ortu University of Cagliari
Pre-print
16:10
20m
Talk
Scientific Open-Source Software Is Less Likely To Become Abandoned Than One Might Think! Lessons from Curating a Catalog of Maintained Scientific Software
Research Papers
Addi Malviya-Thakur The University of Tennessee, Knoxville / Oak Ridge National Laboratory, Reed Milewicz Sandia National Laboratories, Mahmoud Jahanshahi University of Tennessee, Lavinia Francesca Paganini Eindhoven University of Technology, Bogdan Vasilescu Carnegie Mellon University, Audris Mockus University of Tennessee
Link to publication DOI
16:30
20m
Talk
Who Will Stop Contributing to OSS Projects? Predicting Company Turnover Based on Initial Behavior
Research Papers
Mian Qin Beijing Institute of Technology, Yuxia Zhang Beijing Institute of Technology, Klaas-Jan Stol Lero; University College Cork; SINTEF Digital , Hui Liu Beijing Institute of Technology
DOI
16:50
20m
Talk
An empirical study of token-based micro commits
Journal First
Masanari Kondo Kyushu University, Daniel M. German University of Victoria, Yasutaka Kamei Kyushu University, Naoyasu Ubayashi Waseda University, Osamu Mizuno Kyoto Institute of Technology
17:10
10m
Talk
TS-Detector : Detecting Feature Toggle Usage Patterns
Demonstrations
Md Tajmilur Rahman Gannon University, Mengzhe Fei University of Saskatchewan; Vendasta, Tushar Sharma Dalhousie University, Chanchal K. Roy University of Saskatchewan
17:20
20m
Talk
Impact of Request Formats on Effort Estimation: Are LLMs Different than Humans?
Research Papers
Gül Calikli University of Glasgow, Mohammed Alhamed Applied Behaviour Systems LTD (Hexis), United Kingdom
DOI

Information for Participants
Tue 24 Jun 2025 16:00 - 17:40 at Cosmos 3C - MSR 2 Chair(s): DongGyun Han
Info for room Cosmos 3C:

Cosmos 3C is the third room in the Cosmos 3 wing.

When facing the main Cosmos Hall, access to the Cosmos 3 wing is on the left, close to the stairs. The area is accessed through a large door with the number “3”, which will stay open during the event.

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