docs-maven-plugin/src/test/resources/org/apache/servicemix/docs/confluence/document1.xml

<chapter xmlns="http://docbook.org/ns/docbook" id="Chapter">
  <title>Chapter</title>
  <section id="Section1">
    <title>Section 1</title>
    <section id="Section1.1">
      <title>Section 1.1</title>
    </section>
  </section>
  <section id="Section2">
    <title>Section 2</title>
  </section>
</chapter>