JAXB Exception: javax.xml.bind.PropertyException: name:

Explanation and Fix:


Sometimes using JAXB, you might need to write following output to the OutputStream object of browser. Intent is to show a minimal UI
on browser by using a XSL file and the XML attributes.

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<?xml-stylesheet type='text/xsl' href='../myviewer.xsl'?>
<FileDate>
<DataName>file1.txt</DataName>
</FileData>

To implement this, in your Java code you will write something like this:
        StringWriter sw = new StringWriter();
        JAXBContext context = JAXBContext.newInstance(FileDate.class);
        Marshaller marshaller = context.createMarshaller();
        marshaller.setProperty("com.sun.xml.internal.bind.xmlHeaders", RESOURCE_XSL);
        marshaller.marshal(FileDate, sw);

        Console.WriteLine(sw.getBuffer().toString());
        response.setContentType("application/xml"); //response is object of HttpServletResponse.
        response.getWriter().print(sw.getBuffer().toString());

This works perfectly if you are using JAXB 2.2/ java6 or more. but if your system is confused between old and new java, then it throws this exception:
 Console.WriteLine(sw.getBuffer().toString()); -->will throw exception
javax.xml.bind.PropertyException: name: com.sun.xml.internal.bind.xmlHeaders value: <?xml-stylesheet type='text/xsl' href='../myviewer.xsl'?>

This exception is random and does not appear on all systems. To fix this, use try-catch block and try to use this: com.sun.xml.bind.xmlHeaders

so final code to correct this error will be:
try{
            marshaller.setProperty("com.sun.xml.internal.bind.xmlHeaders", RESOURCE_XSL);
        }
        catch(PropertyException pex)
        {
            marshaller.setProperty("com.sun.xml.bind.xmlHeaders", RESOURCE_XSL);
        }

It should fix the issue.