[balloot]

This is an unbelievably stupid request.

Nobody writes bug-free code - people in the comments on SE talking about how this can be done with automated testing are utterly delusional. All developers, no matter how talented and/or cautious, create bugs from time to time.

So if you are to say you have 100% confidence in your code, you are either:

1) The first developer ever to write all bug-free code, all the time (hint: you aren't)

2) Willingly overlooking the fact that no matter how hard you try or how confident you are in your code, you will introduce bugs every so often.

Neither of those is an even remotely reasonable stance to take. This project manager is a total moron.