Port validator check incorrect

[tomhula]

Hi, I've tried the PortValidator and noticed, that it does the following check: port > 0 && port < Short.MAX_VALUE.
However Short is signed and so it's max value is different. The actual max value is whole unsigned 16 bits.
Also the check should be less than or equal to if I am not mistaken, since it already is the max value, not it's size.