I was able to add into
/opt/lucee/tomcat/bin/setenv.sh and that works.
However, on Stackoverflow someone is suggesting
Rather than create /usr/share/tomcat8/bin/setenv.sh, you can put those settings in /etc/default/tomcat8.
Since we are not using tomcat8, how should I call the file in my default folder?
I rather put it /etc/default then in my tomcat installation folder since this can be removed/updated.