Automatic Repair of Real Bugs in Java: A Large-Scale Experiment on the Defects4J Dataset

Understand

Defects4J is a large, peer-reviewed, structured dataset of real-world Java bugs.

• Each bug in Defects4J comes with a test suite and at least one failing test case that triggers the bug.
• In this paper, we report on an experiment to explore the effectiveness of automatic test-suite based repair on Defects4J.
• The result of our experiment shows that the considered state-of-the-art repair methods can generate patches for 47 out of 224 bugs.