I'm trying to connect the salesforce API by creating a web service client in java (Axis).

I'm behind proxy and I have set the property that is required for connecting a web service for proxy

The code that I'm using is 

            binding = (SoapBindingStub) new SforceServiceLocator().getSoap();

            binding._setProperty("http.proxySet", "true");
            binding._setProperty("http.proxyHost", <proxy-host>);
            binding._setProperty("http.proxyPort", <proxy-port>);

 I'm calling the login function given below

            Login login = new Login();
            login.setUsername(<username>);
            login.setPassword(<password>);
            LoginResult lr = binding.login(username, password);
 

I have added the following jars in my classpath :

jaxrpc.jar
axis.jar
commons-discovery-0.2.jar
commons-logging.jar
wsdl4j-1.5.1.jar
commons-httpclient-3.0-rc4.jar

I'm getting the following error while calling the login function 

AxisFault
 faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
 faultSubcode:
 faultString: java.net.UnknownHostException: test.salesforce.com
 faultActor:
 faultNode:
 faultDetail:
    {http://xml.apache.org/axis/}stackTrace:java.net.UnknownHostException: test.salesforce.com
    at java.net.PlainSocketImpl.connect(Unknown Source)
    at java.net.SocksSocketImpl.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.axis.components.net.DefaultSocketFactory.create(DefaultSocketFactory.java:153)
    at org.apache.axis.components.net.DefaultSocketFactory.create(DefaultSocketFactory.java:120)
    at org.apache.axis.transport.http.HTTPSender.getSocket(HTTPSender.java:191)

Can someone please help me how can I resolve the problem...

Thanks!!!