Invocation arguments were modified

Fri, 26 Aug 2005 02:12:58 -0700 

Hi there,
I am using Geronimo and have a JAXRPC Web service running. Now I am trying to get it secured...
I am new to WSS4J and I am trying to get the WSSignEnvelope and WSEncryptEnvelope running. I am following the API description and through some googling I found out that one has to instantiate the WSSecurityEngine and use the .setUserInfo() method on the above Objects to get it going. It took quite a while until I got that far since this was unfortunately not included in the code examples at http://ws.apache.org/wss4j/api.html.
Now I am getting the following exception: "Invocation arguments were modified". 

What am I doing wrong here?

Any help would be greatly appreciated!

Thanks in advance.

Stefan

Here are the error and implementation details:

AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: java.lang.RuntimeException: Invocation arguments were modified
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}stackTrace:java.lang.RuntimeException: Invocation arguments were modified at org.apache.axis.handlers.HandlerChainImpl.postInvoke(HandlerChainImpl.java:203) at org.apache.axis.handlers.HandlerChainImpl.handleResponse(HandlerChainImpl.java:173) at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:466) 
....
java.lang.RuntimeException: Invocation arguments were modified
   at org.apache.axis.AxisFault.makeFault(AxisFault.java:101)
at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:479) 


The code:

public class SecurityHandler extends GenericHandler {

   QName qn[] = null;
static final WSSecurityEngine wsse = new WSSecurityEngine().getInstance(WSSConfig.getDefaultWSConfig()); 

   public void init(HandlerInfo info) {
       qn = info.getHeaders();
   }

   public QName[] getHeaders() {
       return qn;
   }

   public boolean handleResponse(MessageContext msgContext) {
       try {

           SOAPMessageContext smc = (SOAPMessageContext) msgContext;
           SOAPMessage msg = smc.getMessage();
           SOAPPart sp = msg.getSOAPPart();
           // wsse.setPrecisionInMilliSeconds(true);

           Document envelope = sp.getEnvelope().getOwnerDocument();
SOAPConstants soapConstants = WSSecurityUtil.getSOAPConstants(envelope.getDocumentElement()); 

           WSSignEnvelope signer = new WSSignEnvelope();
           Crypto crypto = CryptoFactory.getInstance("crypto.properties");
// // signer.setUserInfo("16c73ab6-b892-458f-abf5-2f875f74882e","security"); 
           // Vector parts = new Vector();
           // WSEncryptionPart part = new
           // WSEncryptionPart(soapConstants.getBodyQName().getLocalPart(),
           // soapConstants.getEnvelopeURI(),
           // "Content");
           // parts.add(part);
           // signer.setParts(parts); // this is optional since the body is
           // signed by default
           // envelope = signer.build(envelope, crypto);
// WSEncryptBody encryptor = new WSEncryptBody(); encryptor.setUserInfo("16c73ab6-b892-458f-abf5-2f875f74882e", "security"); 
           envelope = encryptor.build(envelope, crypto);

       } catch (Exception e) {
           e.printStackTrace();
       }
       return true;
   }
}


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