/usr/share/tomcat7/lib/catalina-jmx-remote.jar is in libtomcat7-java 7.0.56-3+deb8u11.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/tomcat7/lib/../../java/tomcat-catalina-jmx-remote-7.0.56.jar