migrated from sourceforge tracker https://sourceforge.net/tracker/?func=detail&aid=1966109&group_id=93991&atid=606303 In the tld doc page an attribute with no description will have a description of "No Description" in italics. On the tag reference page the description is just "null". The behavior should be the same as the tld doc pages. See the attributes from the nested library of tags http://struts.apache.org/1.x/struts-taglib/tagreference.html