CURLY3Y

Anecdotal experiences incoming:

I am moderately involved with various sinology students from Europe. And have traveled to China personally.

Personally I stayed at various AirBnBs within China and registered at the police in Bejing and Shanghai.

The host provided a signed letter confirming where we are staying. With that letter I headed to a local police station where I gave the letter and had to fill out a form with basic personal details and address of where I was staying.

In return I got a stamped letter confirming my stay.

Anecdotes from others: People who have registered late for various reasons (finding apartment, inconvenient arrival combined with work, etc)

I have as of yet not heard anything experience other than the police saying please register on time next time and still got their stamped confirmation of stay.

One standout story however is someone who looked up a recent political dissident via Baidu and got a visit from the police, nothing really exceptional happened except he got visited at his apartment got told off, had to sign a letter confirming the visit and infraction.

The person in question has been back to china multiple times since.

There is also Istanbul a test coverage tool and their CLI named nyc.

In Java for example you this might happen from generated classes in my case JAXB classes generated from xsd.

In in javascript minimizers are not deterministic leading to different .js files.

Running into this has nothing to do with professionalism.