Spotting the Glitch Facebook has a secret weapon when it comes to bugs: Sapienz This nifty tool scouts for any hiccups or crashes in the company’s primary Android applications like Facebook, Messenger, and Instagram. Once found, the information gets stored neatly in their data vaults.

Understanding the Culprit Now enters SAPFIX. Its mission? Zooming into the precise line of code stirring the trouble. It's not about random guesswork but a meticulous process. A special method, called "spectrum-based fault localization", guides it to the troublemakers. But there's a catch: if the glitch isn’t consistent, SAPFIX moves on without a second glance.

Crafting the Solution When it comes to mending, SAPFIX boasts a dual-approach:

• By The Book: There’s a handy collection of repair blueprints for the usual suspects. Common problems? SAPFIX’s got templates for that.

• Creative Mode: When typical templates don’t do the trick, SAPFIX dons its innovator cap. Using a mutation technique, it tweaks the problematic code till an apt solution surfaces.

Ensuring Perfection Before the final curtain call, it's crucial to test the waters. SAPFIX plays safe by:

1. Testing With Sapienz: Ensuring the proposed fix passes all stringent app tests.

2. Seeking Counsel from Infer: A static analysis guru, Infer, meticulously checks if SAPFIX’s solutions come with any unwelcome strings attached.

The Human Touch Last but far from least, flesh-and-blood developers get the final word. They review, revise, and, if all looks stellar, give their nod of approval.

With such a systematic, AI-powered approach, Facebook's app ecosystem seems in good hands. Would you trust an AI with your code?

source: Facebook created a tool that detects and repairs bugs automatically

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