[jdom-interest] resolving a PUBLIC dtd

[Crook, Charles]

Using Weblogic 6.0sp2 and JDom b-7, we're using this to process an XML file
which has been uploaded.

   SAXBuilder saxBuilder = new SAXBuilder( parserClass, false ) ;
   Document xmlTempDoc = saxBuilder.build( new StringReader( sXml ));

If the uploaded xml contains a PUBLIC dtd, such as:
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application
2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">

JDom's SAXBuilder throws an exception because of our corporate firewall,
which requires a user id / password for outbound traffic:

org.jdom.JDOMException: Error in building: Tried all: '1' addresses, but
could not connect over HTTP to server: 'java.sun.com', port: '80'
org.jdom.JDOMException: Error in building: Tried all: '1' addresses, but
could not connect over HTTP to server: 'java.sun.com', port: '80'
 at org.jdom.input.SAXBuilder.build(SAXBuilder.java:306)
 at org.jdom.input.SAXBuilder.build(SAXBuilder.java:650)

Is this something that our network staff will have to solve to allow a
specific user to travel through the firewall without a
userid/password?

Or is there a JDom way around this?  I realize after some reading that I
could disable DTD loading by using setEntityResolver, but in this case I
will want to load the DTD and use it for validation because the application
will be accepting XML files built by clients using our PUBLIC DTD.

Charlie Crook