declare namespace java {
    namespace net {
        // @ts-ignore
         class PortUnreachableException extends java.net.SocketException {
            /**
             * Constructs a new {@code PortUnreachableException} with a
             * detail message.
             */
            // @ts-ignore
            constructor(msg: string)
            /**
             * Construct a new {@code PortUnreachableException} with no
             * detailed message.
             */
            // @ts-ignore
            constructor()
        }
    }
}
