https://issues.apache.org/bugzilla/show_bug.cgi?id=29936
http://www.securityfocus.com/archive/1/archive/1/504090/100/0/threaded
http://tomcat.apache.org/security-6.html
http://tomcat.apache.org/security-5.html
http://tomcat.apache.org/security-4.html
http://svn.apache.org/viewvc?rev=781708&view=rev
http://svn.apache.org/viewvc?rev=781542&view=rev
http://svn.apache.org/viewvc?rev=739522&view=rev
http://svn.apache.org/viewvc?rev=681156&view=rev
http://svn.apache.org/viewvc?rev=652592&view=rev
https://issues.apache.org/bugzilla/show_bug.cgi?id=45933