The mod_autoindex.c module is part of the Apache HTTPD server, not the Apache Tomcat server. The clues are in its name. First, and foremost ".c" means C programming language, not Java, and Tomcat, unlike Apache HTTP (more commonly known as simple "Apache"), is all Java.
If that wasn't clue enough. Anything named "mod_something" is almost certainly an Apache module.
Tomcat will index any directory within a webapp providing that there's nothing defined in web.xml that maps to the equivalent relative pathname. And, of course, providing that Tomcat has read-access rights to that directory. Although for directories within a WAR, that should always be the case.
Being persecuted doesn't in any way prove your righteousness or your beliefs. Many people get persecuted because they are repugnant or annoying. Or just because they can be.
I think he's gonna try to grab my monkey. Do we have a monkey outfit for this tiny ad?