Defects4J
A collection of 854 real, reproducible bugs from 17 open-source Java projects, each with the buggy and fixed versions and tests that expose the bug. Program repair studies ask a model to fix each bug, and a fix counts when the project's tests pass. It also serves fault localization and test generation research.
Version 3.0.1 has 854 active bugs and 10 deprecated ones. Passing tests do not prove a patch is correct, so many papers also check patches by hand. The bugs predate current models and are likely in their training data. About 1,000 GitHub stars.
- Released
- July 2014
- Kind
- Fixing real repositories
- Level
- Expert
- Scored
- Checked automatically
- Answers
- Code
- Tasks
- All public
No scores here yet
No lab, leaderboard or Epoch AI run has reported a score for Defects4J yet.
No lab model card reports it yet
We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark.
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