FORM authentication bug?

Deploying samples\java\webapps\security\form-auth\webapps-formbased-security.war and accessing http://.../webapps-formbased-security;jsessionid=/ it redirects to index.jsp without required authentication
[224 byte] By [moferga] at [2007-11-27 6:49:31]
# 1
Which Web Server version do you use?
wyb2005a at 2007-7-12 18:23:17 > top of Java-index,Web & Directory Servers,Web Servers...
# 2
I have proven with Sun Web Server 6.1 SP6 and 7.0
moferga at 2007-7-12 18:23:17 > top of Java-index,Web & Directory Servers,Web Servers...