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POHow does JAXB map a class name to an XML element name?
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  1. POHow does JAXB map a class name to an XML element name?
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    copied!<p>I am using JAXB (the version included with JDK 6) to marshall objects to XML. The following piece of code yields unexpected results: <pre><code> public class JAXBTest { @XmlRootElement public static class VIPPerson {}</p> <pre><code> public static void main(String[] args) throws JAXBException { StringWriter sw = new StringWriter(); VIPPerson p = new VIPPerson(); JAXB.marshal(p, sw); System.out.println(sw.toString()); } } </code></pre> <p></pre></code> The output from the above is</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8" standalone="yes"?&gt; &lt;vipPerson/&gt; </code></pre> <p>I am expecting to see the class name mapped to the <code>VIPPerson</code> element rather than <code>vipPerson</code> based on section 8.12.1 in the <a href="http://jcp.org/aboutJava/communityprocess/mrel/jsr222/index2.html" rel="nofollow">JAXB specification</a>, which says </p> <blockquote> <p>class name: a class name is mapped to an XML name by de capitalization using java.beans.Introspector.decapitalize(class name ).</p> </blockquote> <p>The JavaDoc for that <code>decapitalize</code> method says this:</p> <blockquote> <p>Utility method to take a string and convert it to normal Java variable name capitalization. This normally means converting the first character from upper case to lower case, <strong>but in the (unusual) special case when there is more than one character and both the first and second characters are upper case, we leave it alone</strong>. Thus "FooBah" becomes "fooBah" and "X" becomes "x", but "URL" stays as "URL". </p> </blockquote> <p>Does the implementation violate the spec or am I misunderstanding something?</p>
 

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