anchor.diff:  
   Or from XML DSL you configure this as
   
  -[source,java]
  +[source,xml]
   -------------------------------------------------------
   <dataFormats>
     <jacksonXml id="jacksonxml" allowJmsType="true"/>
  
positive.code: 
  Or from XML DSL you configure this as
  
  [source,java]
  ------------------------------------------------------
  <dataFormats>
    <jacksonXml id="jacksonxml" include="NON_NULL"/>
  
negative.code: Using the `prettyPrint` option one can output a well formatted XML while
  marshalling:
  
  [source,xml]
  ------------------------------------------------
  <dataFormats>
      <jacksonXml id="jack" prettyPrint="true"/>
  </dataFormats>
  ------------------------------------------------
  
  And in Java DSL:
  