/usr/share/java/mysql-connector-java.jar is in libmysql-java 5.1.42-1~deb8u1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/mysql-connector-java-5.1.42.jar
/usr/share/java/mysql-connector-java-5.1.42.jar