As I was trying to decide who is the author of the ob-java docs, I realized it's not clear how you're defining authorship due to my confusion about ob-java.  I can think of three ways to determine authorship:

1. the person that wrote it
2. the people who influenced the code
3. the first person to check in the filename

At first I thought I wrote ob-java by rule 1.  I didn't start from the old ob-java, and I replaced the entire file.  The patch shows only 10 random lines of over 400 matched the original ob-java.  If we don't count the lines that also match ob-template.el, there are only 5.

When you said I didn't write it I thought rule 2 was the next most reasonable, so I made the authors those that wrote the code that I referenced.  But after thinking about it more it can't be this.  Adding languages to babel isn't documented well enough for anyone to do it without looking at an existing implementation, so going by rule 2 all languages would be authored by whoever wrote the first one, and they're not.

I'm not sure but I think you'd say I wrote ob-haxe, the ob-haxe tests, the ob-java tests, and the ob-java docs, but not ob-java.  These match up with rule 3.  I don't think rule 3 is the one anyone would pick from the list, but maybe most would subconsciously use it as a heuristic for rule 1, since rule 1 is hard to establish.  I think the change in authorship is clear for ob-java because it was replaced in one patch, usually changes are incremental.  Each file is The Ship of Theseus.  Even if we took the trouble to determine how much any person wrote, it is difficult to decide for oneself let alone agree on the amount of change required to establish new authorship.

But rule 3 doesn't work if a file is rewritten.  If Dostoevsky checks in the text of "Crime and Punishment" as book.txt, and then Dr. Seuss replaces the content with "The Cat in the Hat," we'd have to say Dostoevsky wrote "The Cat in the Hat."

So I think either you didn't notice that I'd replaced the file, or you considered the lines that matched sufficient for continuity, or you're thinking about authorship in a way I haven't guessed.  Could you clarify?