Clone Notifier: Developing and Improving the System to Notify Changes of Code Clones

A code clone is a code fragment that is identical or similar to it in the source code. It has been identified as one of the main problems in software maintenance. When a developer fixes a defect, they need to find the code clones corresponding to the code fragments. In this paper, we present Clone Notifier, a system that alerts on creations and changes of code clones to software developers. First, Clone Notifier identifies creations and changes of code clones. Subsequently, it groups them into four categories (new, deleted, changed, stable) and assigns labels (e.g., consistent, inconsistent) to them. Finally, it notifies on creations and changes of code clones along with the corresponding categories and labels. Clone Notifier and its video are available at: https://github.com/s-tokui/CloneNotifier.