title: Jackson: XML-Binding - Handling Null vs. Empty String
body: <p>The new Jackson-API provides us with convenient XML-Binding (just like JAXB for example), but i cant find any way to make Jackson serialize the typical  "xsi:nil"-Attribute that is defacto standard to represent NULL-Values in XML?
  Please correct me if i see this wrong ;-)</p>
  
  <p>In JAXB this can be done easily by annotating a java-variable with:
  @XMLElement(nillable=true)</p>
  
  <p>see also: <a href="http://blog.bdoughan.com/2012/04/binding-to-json-xml-handling-null.html" rel="nofollow">http://blog.bdoughan.com/2012/04/binding-to-json-xml-handling-null.html</a></p>
  
  <p>Can Jackson do this ?</p>
  
  <p>for Jackson-XML see: <a href="https://github.com/FasterXML/jackson-dataformat-xml" rel="nofollow">https://github.com/FasterXML/jackson-dataformat-xml</a></p>