SoapLite.java

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;


public class SoapLite {
    
    @SuppressWarnings("restriction")
	private static void setKeytoreOnSystem(String localPFX, String senha) {
		System.setProperty("sun.security.ssl.allowUnsafeRenegotiation", "true");
		System.setProperty("java.protocol.handler.pkgs","com.sun.net.ssl.internal.www.protocol");
		java.security.Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
		System.setProperty("javax.net.ssl.keyStoreType", "PKCS12");
		System.setProperty("javax.net.ssl.keyStore", localPFX);
		System.setProperty("javax.net.ssl.keyStorePassword", senha);
		System.setProperty("javax.net.ssl.trustStoreType", "JKS");
		System.setProperty("javax.net.ssl.trustStore", CACERTS);
		System.setProperty("javax.net.ssl.trustStorePassword", "changeit");
	}
    
    private static File getArquivoCacerts(){
    	
        String pastaTemporaria = System.getProperty("java.io.tmpdir");
        String caminhoArquivoCacerts = pastaTemporaria.concat("/").concat(NOME_ARQUIVO_CACERTS);
        
        InputStream inputStreamCacerts = Main.class.getResourceAsStream("/cacerts/" + NOME_ARQUIVO_CACERTS);
        File arquivoCacerts = null;
        
        if(inputStreamCacerts != null){
        	try{
        		arquivoCacerts = new File(caminhoArquivoCacerts);
        		
            	OutputStream outputStream = new FileOutputStream(arquivoCacerts);
                int read = 0;
                byte[] bytes = new byte[1024];

                while ((read = inputStreamCacerts.read(bytes)) != -1) {
                	outputStream.write(bytes, 0, read);
                }
                inputStreamCacerts.close();
                outputStream.flush();
                outputStream.close();
            }catch(Exception e){
            	e.printStackTrace();
            }
        }
        return arquivoCacerts;
    }
    
    private String requestWs(String xml,String url,String metodo) throws Exception {
        URL urlGo = new URL(url);
        HttpURLConnection con = (HttpURLConnection) urlGo.openConnection();

        con.setRequestProperty("Content-type", "text/xml; charset=UTF-8");
        con.setRequestProperty("SOAPAction", "http://nfse.goiania.go.gov.br/ws/" + metodo);

        con.setRequestMethod("POST");
        con.setDoOutput(true);
        con.setDoInput(true);

        OutputStream reqStream = con.getOutputStream();
        reqStream.write(xml.getBytes("UTF-8"));

        StringBuilder xmlRetorno = new StringBuilder();
        String line;
        BufferedReader retornoWs = new BufferedReader(new InputStreamReader(con.getInputStream()));

        while ((line = retornoWs.readLine()) != null) {
                xmlRetorno.append(line);
        }

        retornoWs.close();
        con.disconnect();
        return xmlRetorno.toString();
    }
}

Teste.java

public class Teste {

public static void main(String[] args) throws IOException, SOAPException {

    String xmlInput = "  <soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:web=\"http://litwinconsulting.com/webservices/\">\n"
            + "   <soapenv:Header/>\n"
            + "   <soapenv:Body>\n"
            + "   <web:RES>\n"
            + "      <web:RETURNCODE>100 </web:RETURNCODE> \n"
            + "   </web:RES>\n"
            + "      <web:GetWeather>\n"
            + "         <!--Optional:-->\n"
            + "         <web:City>%CITY%</web:City>\n"
            + "      </web:GetWeather>\n"
            + "   </soapenv:Body>\n"
            + "  </soapenv:Envelope>";

    MessageFactory factory = MessageFactory.newInstance();
    SOAPMessage message = factory.createMessage(
            new MimeHeaders(),
            new ByteArrayInputStream(xmlInput.getBytes(Charset
                    .forName("UTF-8"))));

    SOAPBody body = message.getSOAPBody();

    NodeList returnList = body.getElementsByTagName("web:RES");

    boolean isSuccess = false;
    for (int k = 0; k < returnList.getLength(); k++) {
        NodeList innerResultList = returnList.item(k).getChildNodes();
        for (int l = 0; l < innerResultList.getLength(); l++) {
            if (innerResultList.item(l).getNodeName()
                    .equalsIgnoreCase("web:RETURNCODE")) {
                isSuccess = Integer.valueOf(innerResultList.item(l)
                        .getTextContent().trim()) == 100 ? true : false;
            }
        }
    }
    if (isSuccess) {
        NodeList list = body.getElementsByTagName("web:GetWeather");

        for (int i = 0; i < list.getLength(); i++) {
            NodeList innerList = list.item(i).getChildNodes();

            for (int j = 0; j < innerList.getLength(); j++) {
                System.out.println(innerList.item(j).getNodeName());
                System.out.println(innerList.item(j).getTextContent());
            }
        }
    }

}
}