/usr/share/tomcat8/ is in tomcat8-common 8.5.30-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/tomcat8/bin/
/usr/share/tomcat8/bin/bootstrap.jar
/usr/share/tomcat8/bin/catalina-tasks.xml
/usr/share/tomcat8/bin/catalina.sh
/usr/share/tomcat8/bin/configtest.sh
/usr/share/tomcat8/bin/daemon.sh
/usr/share/tomcat8/bin/digest.sh
/usr/share/tomcat8/bin/setclasspath.sh
/usr/share/tomcat8/bin/shutdown.sh
/usr/share/tomcat8/bin/startup.sh
/usr/share/tomcat8/bin/tomcat-juli.jar
/usr/share/tomcat8/bin/tool-wrapper.sh
/usr/share/tomcat8/bin/version.sh
/usr/share/tomcat8/lib/
/usr/share/tomcat8/lib/annotations-api.jar
/usr/share/tomcat8/lib/catalina-ant.jar
/usr/share/tomcat8/lib/catalina-ha.jar
/usr/share/tomcat8/lib/catalina-jmx-remote.jar
/usr/share/tomcat8/lib/catalina-storeconfig.jar
/usr/share/tomcat8/lib/catalina-tribes.jar
/usr/share/tomcat8/lib/catalina.jar
/usr/share/tomcat8/lib/commons-dbcp.jar
/usr/share/tomcat8/lib/commons-pool.jar
/usr/share/tomcat8/lib/el-api.jar
/usr/share/tomcat8/lib/jasper-el.jar
/usr/share/tomcat8/lib/jasper.jar
/usr/share/tomcat8/lib/jaspic-api.jar
/usr/share/tomcat8/lib/jsp-api.jar
/usr/share/tomcat8/lib/servlet-api.jar
/usr/share/tomcat8/lib/tomcat-api.jar
/usr/share/tomcat8/lib/tomcat-coyote.jar
/usr/share/tomcat8/lib/tomcat-dbcp.jar
/usr/share/tomcat8/lib/tomcat-i18n-es.jar
/usr/share/tomcat8/lib/tomcat-i18n-fr.jar
/usr/share/tomcat8/lib/tomcat-i18n-ja.jar
/usr/share/tomcat8/lib/tomcat-jdbc.jar
/usr/share/tomcat8/lib/tomcat-jni.jar
/usr/share/tomcat8/lib/tomcat-util-scan.jar
/usr/share/tomcat8/lib/tomcat-util.jar
/usr/share/tomcat8/lib/tomcat-websocket.jar
/usr/share/tomcat8/lib/websocket-api.jar