tests/org.eclipse.wst.xml.catalog.tests/data/testXSLTwithCatalogResolver/xmlcatalog1.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE fragment [
  <!ENTITY quote PUBLIC "myquote" "quote1.xml">
]>

<fragment>
  <para>
      &quote;
  </para>
</fragment>