client Axis2, problems with proxy

I'm trying an Axis2 client but i need to use a proxy.
I get this errors:
GRAVE: Credentials cannot be used for NTLM authentication:
org.apache.commons.httpclient.UsernamePasswordCredentials
org.apache.commons.httpclient.auth.InvalidCredentialsException:
Credentials cannot be used for NTLM authentication:
org.apache.commons.httpclient.UsernamePasswordCredentials
INFO: Unable to sendViaPost to url[https://*****]
org.apache.axis2.AxisFault: Transport error: 407 Error: Proxy
Authentication Required ( The ISA Server requires authorization to
fulfill the request. Access to the Web Proxy filter is denied. )

What is wrong?
This is the code:

class ProxyAuthenticator extends Authenticator {
    private String user, password;

    public ProxyAuthenticator(String user, String password) {
        this.user = user;
        this.password = password;
    }

    protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(user, password.toCharArray());
    }
}

public class AppMain {
    private static String address = "https://*****";
    private static String proxyHost = "*****";
    private static String proxyPort = "*****";
    private static String proxyUser = "*****";
    private static String proxyPassword = "*****";

    public static void main(String[] args) throws Exception {
        /*-*/
        Authenticator.setDefault(new ProxyAuthenticator(proxyUser,
proxyPassword));
        Properties props = System.getProperties();
        props.put("http.proxyHost", proxyHost);
        props.put("http.proxyPort", proxyPort);
        props.put("http.proxyUser", proxyUser);
        props.put("http.proxyPassword", proxyPassword);
        props.put("https.proxyHost", proxyHost);
        props.put("https.proxyPort", proxyPort);
        props.put("https.proxyUser", proxyUser);
        props.put("https.proxyPassword", proxyPassword);
        /*-*/
        HttpTransportProperties.Authenticator authentication = new
HttpTransportProperties.Authenticator();
        authentication.setUsername(proxyUser);
        authentication.setPassword(proxyPassword);
        authentication.setHost(proxyHost);
        authentication.setPort(Integer.parseInt(proxyPort));
        /*-*/
        HttpTransportProperties.ProxyProperties proxyProperties = new
HttpTransportProperties.ProxyProperties();
        proxyProperties.setProxyName(proxyHost);
        proxyProperties.setProxyPort(Integer.parseInt(proxyPort));
        proxyProperties.setUserName(proxyUser);
        proxyProperties.setPassWord(proxyPassword);
        /*-*/
        ServiceClient client = new ServiceClient();
        client = new ReportingServiceStub(address)._getServiceClient();
        /*-*/
        Options options1 = new Options();
        options1 = new ReportingServiceStub(address)._getServiceClient
().getOptions();
        options1.setProperty(HTTPConstants.PROXY, proxyProperties);
        options1.setProperty(HTTPConstants.HTTP_PROTOCOL_VERSION,
HTTPConstants.HEADER_PROTOCOL_10);
        options1.setProperty(HTTPConstants.AUTHENTICATE, authentication);
        options1.setProperty(AuthPolicy.AUTH_SCHEME_PRIORITY,
AuthPolicy.NTLM);
        client.setOptions(options1);
        /*-*/
        Options options2 = new Options();
        options2.setTo(new EndpointReference(address));
        options2.setAction("urn:getReportingData");
        client.setOptions(options2);
        /*-*/
        OMElement res = client.sendReceive(createPayLoad());
        System.out.println(res.toString());
    }

    public static OMElement createPayLoad() {
        OMFactory fac = OMAbstractFactory.getOMFactory();
        OMNamespace omNs = fac.createOMNamespace("http://ws.apache.org/
axis2", "ns1");
        OMElement method = fac.createOMElement("getReportingData", omNs);
        OMElement value1 = fac.createOMElement("******", omNs);
        value1.setText("******");
        method.addChild(value1);
        OMElement value2 = fac.createOMElement("******", omNs);
        value2.setText("******");
        method.addChild(value2);
        OMElement value3 = fac.createOMElement("******", omNs);
        value3.setText("******");
        method.addChild(value3);
        return method;
    }
}

Thank you.