Also the copyOf isn't really the same as being able to || things since it just happens both copyOf default is 0 and in this case it is also 0 (i.e. what if it w

Also the copyOf isn't really the same as being able to || things since it just happens both copyOf default is 0 and in this case it is also 0 (i.e. what if it was -1 to indicate there was no version).