Refactor PortUtil.java

[sfloess]

The code is uncharacteristically represents not my best practices: for example temporary variables.

Example:

    <P> P createPortForTargetNamespace(final String targetNamespace, final Class<? extends Service> serviceClass, final SessionContext session) throws SoapException {
        try {
            JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
            factory.setServiceClass(MethodUtil.findMethodsForAnnotationClass(serviceClass, WebEndpoint.class).get(0).getReturnType());

            final P retVal = (P) factory.create();
            final String url = getUrl().computeUrl(serviceClass, session);

            final SOAPElement sessionId = SoapUtil.getSoapFactory().createElement(new QName(targetNamespace, SESSION_ID));
            sessionId.addTextNode(session.sessionId());

            final SOAPElement sessionHeader = SoapUtil.getSoapFactory().createElement(new QName(targetNamespace, SESSION_HEADER));
            sessionHeader.addChildElement(sessionId);

            final List<Header> headers = new ArrayList<Header>();
            final Header soapHeader = new Header(new QName(targetNamespace, SESSION_HEADER), sessionHeader);
            headers.add(soapHeader);

            final Map<String, Object> ctx = ((BindingProvider) retVal).getRequestContext();
            ctx.put(Header.HEADER_LIST, headers);

            SoapUtil.setUrl(retVal, url);

            return retVal;
        } catch(final SOAPException soapException) {
            throw new SoapException(soapException);
        }
    }