Versions: mysql, oracle, and hsqldb.
Steps to verify:
1. Create a site or modify an existing site in Site Info.
2. In the "Edit Tools" section select News.
3. Put a typo in the news feed address.
4. Click continue.
(see attachment for a typical result)
java.io.FileNotFoundException: http://www.sakaiproject.org/cms/index3.php?option=com_rss&feed=RSS2.0&no_html=1 java.io.FileNotFoundException: http://www.sakaiproject.org/cms/index3.php?option=com_rss&feed=RSS2.0&no_html=1
java.net.UnknownHostException: www.sakaiproject2.org java.net.UnknownHostException: www.sakaiproject2.org
and this one, which I still haven't found the cause for or been able to reliably reproducen (seen it twice now):
Cannot connect or obtain a file specified by the News source URL http://www.sakaiproject.org/cms/index2.php?option=com_rss&feed=RSS2.0&no_html=1.