I saw "Black listed (ERROR)" at https://hudson.qa.jboss.com/hudson/job/eap43-tattletale/javadoc/
when actually there are no entries. Seems like a minor error.
The report is green (ERROR in green), hence no issues flagged. So this isn't an error.
Please, use the user forum (http://community.jboss.org/community/tattletale) for user question.