our eclipse projects show errors because of a broken DTD reference in the file "portlet-instances.xml".
the DTD there can not be resolved because the jboss server shows a 404 error:
Is this issue known or did the URL change?
This is normal. The actual DTD is not deployed on the website but is rather resolved by Portal to a file that is bundled in the SAR file via an EntityResolver.
If you feel that the DTD should be available online, please open a JIRA task for it.