Even java has to deal with platform quirks. Serving files from NFS (ESTALE), hardlinks, unlinking files that are still mmaped and stuff like that. With a large

Even java has to deal with platform quirks. Serving files from NFS (ESTALE), hardlinks, unlinking files that are still mmaped and stuff like that. With a large enough codebase you'll accumulate some unix-specific logic where it'll be less painful to just develop under linux rather than trying to keep it running on windows. Of course those pain points are minor and you could write some fallback code for windows, but that code would only ever be exercised on developer machines.