Java Web Service Exception - NullPointException

Question

I am a Beginner in Java and I am trying to build a Web Service that needs to read Data from XML file. I am using this example XML:

<message>Customer Name</message>

This is my Web Method to read the inner XML text:

@WebMethod(operationName = "ProcessMessage")
public void ProcessMessage(@WebParam(name = "name") String strXML){
    String strMessage="";
    try {
        String xmlString = strXML;
        JAXBContext jc = JAXBContext.newInstance(String.class);
        Unmarshaller unmarshaller = jc.createUnmarshaller();
        StreamSource xmlSource = new StreamSource(new StringReader(xmlString));
        JAXBElement<String> je = unmarshaller.unmarshal(xmlSource, String.class);
        strMessage =  je.getValue();
        Response response = Response.status(200).build();
    } catch (JAXBException ex) {
        Logger.getLogger(service.class.getName()).log(Level.SEVERE, null, ex);
    }
}

When I run Web Service, input XML example from above and click the button it throws an Exception:

WS00041: Service invocation threw an exception with message : null;

What is wrong with my Web Method?

try printing stacktrace in catch block and see.

Renjith
– Renjith

2014-10-06 11:55:39 +00:00
Commented Oct 6, 2014 at 11:55 — Renjith
– Renjith, Commented Oct 6, 2014 at 11:55

FireFalcon · Accepted Answer · 2014-11-07 17:46:25Z

1

Tyr to change your method's public void to public string and return some string at the end of the function. For example, try to return your strMessage at the end.

answered Nov 7, 2014 at 17:46

FireFalcon

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