Getafix: Learning to Fix Bugs Automatically

Understand

Static analyzers help find bugs early by warning about recurring bug categories.

• While fixing these bugs still remains a mostly manual task in practice, we observe that fixes for a specific bug category often are repetitive.
• This paper addresses the problem of automatically fixing instances of common bugs by learning from past fixes.
• We present Getafix, an approach that produces human-like fixes while being fast enough to suggest fixes in time proportional to the amount of time needed to obtain static analysis results in the first place.