output_testing.xml

<?xml version="1.0" encoding="UTF-8"?>
<java version="17" class="java.beans.XMLDecoder">
 <object class="Question" id="Question0">
  <void class="Question" method="getField">
   <string>title</string>
   <void method="set">
    <object idref="Question0"/>
    <string>th a title</string>
   </void>
  </void>
  <void class="Question" method="getField">
   <string>desc</string>
   <void method="set">
    <object idref="Question0"/>
    <string>this is a desc</string>
   </void>
  </void>
 </object>
</java>