Whois lookup via a proxy server: java.lang.IllegalArgumentException: Invalid Proxy

I have tried this...gives me a java.lang.IllegalArgumentException: Invalid Proxy. The getters populate the proxy and port from a text file.

    //Imports    import java.io.BufferedReader;    import java.io.File;    import java.io.FileReader;    import java.io.IOException;    import java.net.*;    import java.util.ArrayList;    import org.apache.commons.net.whois.WhoisClient;    public void  whoisCheck(String host) {        SocketAddress addr = new InetSocketAddress(getProxy(), getPort)        Proxy useProxy = new Proxy(Proxy.Type.HTTP, addr);        WhoisClient whoisClient = new WhoisClient();        whoisClient.setProxy(useProxy);        whoisClient.connect(IANA_WHOIS_SERVER, WHOIS_PORT);        tmpStr = whoisClient.query(host);        whoisClient.disconnect();    }