Android Package Name Containing "build" fails to copy generated JAVA files

Hi Callum,

Thank you for bringing this to our attention. Your fix would resolve the issue. We’ve implemented it in a slightly stricter fashion here. https://github.com/EpicGames/UnrealEngine/commit/e42c205e1f5dfd25db9ed14ce0b166c4ddc15c66

Best regards.