Hello all, I get the same issue on Debian, trying to launch jasperserver from tomcat manager, after a fresh 3.7.1 install using buildomatic. I have read that tomcat is using a Java Security Manager that we can disable by editing /etc/default/tomcat5.5 file, changing #TOMCAT5_SECURITY=yes to TOMCAT5_SECURITY=no. (http://wiki.debian-facile.org/config:tomcat#enfin) I am still trying to make things work & will post here if I find a solution. Bye