Had an online programming interview for a start-up, writing code into a shared Google doc while on the phone with the interviewer.
Specifically told that I could just use pseudocode, so I did, without worrying about access modifiers, full variable declarations and use of "new" for making objects, or specific type declarations, etc.
Got told at the end that I "lack experience, and really should have defined access modifiers, declared types, and so on, and that they needed someone proficient in Java. That was the first time I knew about their Java requirement.