Interception of SOAP xml message with SOAPHandler

[aupres]

I want to intercept and examine the whole SOAP xml message. This is my SOAPHandler class ;

public class SOAPMessageHandler implements SOAPHandler<SOAPMessageContext> {

    @Override
    public void close(MessageContext context) {
         // TODO Auto-generated method stub

    }

    @Override
    public boolean handleFault(SOAPMessageContext context) {
        // TODO Auto-generated method stub
       return false;
    }

    @Override
    public boolean handleMessage(SOAPMessageContext context) {
         // TODO Auto-generated method stub
        System.out.println("Server : handleMessage()......");

        Boolean isRequest = (Boolean) context.get(MessageContext.MESSAGE_OUTBOUND_PROPERTY);

        if(!isRequest){

           try{
                SOAPMessage soapMsg = context.getMessage();
                SOAPEnvelope soapEnv = soapMsg.getSOAPPart().getEnvelope();

                SOAPHeader soapHeader = soapEnv.getHeader();
                SOAPBody soapBody = soapEnv.getBody();

                System.out.println(soapHeader.toString());

                System.out.println(soapBody.toString());
            }
            catch(Exception e) {

               e.printStackTrace();
            }
       }
       return true;
   }

   @Override

    public Set<QName> getHeaders() {

        // TODO Auto-generated method stub

       return null;

    }

}

But the whole soap xml message are not printed. Console shows ony these messages

20:48:04,217 INFO [stdout] (default task-8) Server : handleMessage()......

20:48:04,217 INFO [stdout] (default task-8) [soap:Header: null]

20:48:04,217 INFO [stdout] (default task-8) [soap:Body: null]

How can i get the whole SOAP xml message in SOAPHandler class?

I need your help! Thanks.