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Tue 10 Nov 2020 08:37 - 08:38 at Virtual room 2 - Developer Support 1

In software development and maintenance, defect localization is necessary for software quality assurance. Current defect localization techniques mainly rely on defect symptoms (e.g., bug reports or program spectrum) when the defect has been exposed. One challenge task is: can we locate buggy program prior to the appearance of the defect symptom. Such kind of localization is conducted at an early stage (e.g., when buggy program elements are being checked-in) which can be an early step of continuous quality control.

In this paper, we propose a \textbf{\underline{J}}ust-\textbf{\underline{I}}n-\textbf{\underline{T}}ime defect identification and l\textbf{\underline{O}}calization tool, named JITO, which can help developers to locate defective lines at check-in time. In summary, JITO contains two phases: (i) identify if a new change is buggy and (ii) locate suspicious buggy code lines in the identified buggy changes. We implement JITO as a plugin in an integrated development environment (i.e., Intellij IDEA). When developers using our plugin, JITO loads the local Git repository to build the JIT defect identification model and localization model based on historical changes. After submitting a new change to the local repository, developers apply JITO to identify whether it is a buggy change. If a buggy change is identified, JITO leverages JIT defect localization model to locate its suspicious buggy lines and highlight them in Intellij IDEA. Experimental results show that JITO outperforms two baselines (i.e., random guess and a static bug finder (i.e., PMD)) by a substantial margin in terms of four ranking measures.

Demo URL: \url{https://youtu.be/tvnYs62FkEQ}

Plugin download: \url{https://git.io/Jf5r1}

Tue 10 Nov
Times are displayed in time zone: (UTC) Coordinated Universal Time change

08:30 - 09:00: Developer Support 1Paper Presentations / Tool Demos / Research Papers at Virtual room 2
08:30 - 08:32
Talk
Tool Demos
Han Wang, Chunyang ChenMonash University, Australia, Zhenchang XingAustralian National University, Australia, John GrundyMonash University, Australia
DOI
08:33 - 08:34
Talk
Tool Demos
Lingfeng Bao Zhejiang University, Shengyi PanZhejiang University of Technology, China, Zhenchang XingAustralian National University, Australia, Xin XiaMonash University, David LoSingapore Management University, Xiaohu YangZhejiang University, China
DOI
08:35 - 08:36
Talk
Research Papers
Kaifeng HuangFudan University, China, Bihuan ChenFudan University, China, Bowen ShiFudan University, China, Ying WangFudan University, China, Congying XuFudan University, China, Xin PengFudan University, China
DOI
08:37 - 08:38
Talk
Tool Demos
Fangcheng QiuZhejiang University, China, Meng YanChongqing University, Xin XiaMonash University, Xinyu WangZhejiang University, Yuanrui FanZhejiang University, Ahmed E. HassanQueen's University, David LoSingapore Management University
DOI
08:39 - 08:40
Talk
Paper Presentations
Camila Mariane Costa SilvaUniversity of Canterbury
08:41 - 09:00
Talk
Paper Presentations
Camila Mariane Costa SilvaUniversity of Canterbury, Fangcheng QiuZhejiang University, China, Han Wang, Kaifeng HuangFudan University, China, Shengyi PanZhejiang University of Technology, China, M: Ayushi RastogiDelft University of Technology, Netherlands