/usr/share/maven-repo/com/sun/mail/smtp/1.5.2/smtp-1.5.2.jar is in libmail-java 1.5.2-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/com/sun/mail/smtp/1.5.2/../../../../../../java/smtp.jar