This is a feature of JBuilder Professional and Enterprise.
The DTD To XML wizard creates a an XML document from an existing DTD file.
To open the DTD To XML wizard, choose File|New, click the XML tab in the object gallery, and double-click the DTD To XML wizard.
Enter the name of the DTD input file or browse to it and select it.
Note: If you select the DTD file in the project pane before running the wizard, this field is automatically filled in for you.
Select the element from the drop-down list that you want as the root element for the XML document.
Choose the ellipsis button and enter the name of the output XML document in the File Name field.
These fields generate the DOCTYPE declaration in the XML document with SYSTEM or PUBLIC identifiers.
Enter the address and/or the name of the public DTD file.
Enter the address and/or the name of the system or local DTD file.