Using web services in Java

Hi all,
I am new to using web services in JAVA. I am trying to call a .NET Web service through my JAVA code. It is password protected. But in my browser i am able to open that page with out giving authentication details. I am trying to call a method of this web service using my JAVA code . I am using the which uses ServiceFactory and Call classes. Though i give all details correctly, I am getting an error like
Exception in thread "main" AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Client
faultSubcode:
faultString: WSE402: The message does not conform to the policy it was mapped to.
faultActor: https://pilot.xatanet.net/xatanetweb...itservice.asmx
faultNode:
faultDetail:
{http://xml.apache.org/axis/}stackTrace:WSE402: The message does not conform to the policy it was mapped to.
at org.apache.axis.message.SOAPFaultBuilder.createFau lt(SOAPFaultBuilder.java:222)
at org.apache.axis.message.SOAPFaultBuilder.endElemen t(SOAPFaultBuilder.java:129)
at org.apache.axis.encoding.DeserializationContext.en dElement(DeserializationContext.java:1087)
at org.apache.xerces.parsers.AbstractSAXParser.endEle ment(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.sc anEndElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerI mpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerI mpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse (Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse (Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse( Unknown Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at org.apache.axis.encoding.DeserializationContext.pa rse(DeserializationContext.java:227)
at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPar t.java:696)
at org.apache.axis.Message.getSOAPEnvelope(Message.ja va:435)
at org.apache.axis.handlers.soap.MustUnderstandChecke r.invoke(MustUnderstandChecker.java:62)
at org.apache.axis.client.AxisClient.invoke(AxisClien t.java:206)
at org.apache.axis.client.Call.invokeEngine(Call.java :2784)
at org.apache.axis.client.Call.invoke(Call.java:2767)
at org.apache.axis.client.Call.invoke(Call.java:2443)
at org.apache.axis.client.Call.invoke(Call.java:2366)
at org.apache.axis.client.Call.invoke(Call.java:1812)
at MainObj.main(MainObj.java:79)





WSE402: The message does not conform to the policy it was mapped to.
at org.apache.axis.message.SOAPFaultBuilder.createFau lt(SOAPFaultBuilder.java:222)
at org.apache.axis.message.SOAPFaultBuilder.endElemen t(SOAPFaultBuilder.java:129)
at org.apache.axis.encoding.DeserializationContext.en dElement(DeserializationContext.java:1087)
at org.apache.xerces.parsers.AbstractSAXParser.endEle ment(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.sc anEndElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerI mpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerI mpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse (Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse (Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse( Unknown Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at org.apache.axis.encoding.DeserializationContext.pa rse(DeserializationContext.java:227)
at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPar t.java:696)
at org.apache.axis.Message.getSOAPEnvelope(Message.ja va:435)
at org.apache.axis.handlers.soap.MustUnderstandChecke r.invoke(MustUnderstandChecker.java:62)
at org.apache.axis.client.AxisClient.invoke(AxisClien t.java:206)
at org.apache.axis.client.Call.invokeEngine(Call.java :2784)
at org.apache.axis.client.Call.invoke(Call.java:2767)
at org.apache.axis.client.Call.invoke(Call.java:2443)
at org.apache.axis.client.Call.invoke(Call.java:2366)
at org.apache.axis.client.Call.invoke(Call.java:1812)
at MainObj.main(MainObj.java:79)

Pls help me out to solve this problem. I am totally new to using web services.
Pls help me :)