Returns the host name or IP string of the host that originated this session, or {@code null} if the host is unknown.
@return the host name or IP string of the host that originated this session, or {@code null} if the host address is unknown.
See Implementation
Returns the host name or IP string of the host that originated this session, or {@code null} if the host is unknown.
@return the host name or IP string of the host that originated this session, or {@code null} if the host address is unknown.