/usr/ is in tomcat7 7.0.52-1ubuntu0.16.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/
/usr/share/doc/tomcat7/
/usr/share/
/usr/share/tomcat7-root/
/usr/share/tomcat7-root/default_root/
/usr/share/tomcat7-root/default_root/META-INF/
/usr/share/tomcat7-root/default_root/META-INF/context.xml
/usr/share/tomcat7-root/default_root/index.html
/usr/share/doc/tomcat7/copyright
/usr/share/tomcat7/
/usr/share/tomcat7/logrotate.template
/usr/share/tomcat7/defaults.md5sum
/usr/share/tomcat7/defaults.template
/usr/share/tomcat7/logrotate.md5sum
/usr/share/doc/tomcat7/README.Debian
/usr/share/doc/tomcat7/changelog.Debian.gz
/usr/share/doc/tomcat7/NEWS.Debian.gz