Http 403 Error for W3 DTDs

Hello,

 

I am receiving a HTTP 403 error for some of the DTD files if invoked
from a JAVA application trying to parse/resolve the WSDLs that reference
the W3 DTDs.

 

DTD in question: http://www.w3.org/2001/datatypes.dtd

 

I was wondering if this is an isolated issue or something across the
board. Is this something intentional that W3 has done to block DTD
requests and is there a suggested fix for it?

 

 

Thanks

Sumit