/usr/share/maven-repo/javax/mail/javax.mail-api/debian/javax.mail-api-debian.jar is in libmail-java 1.5.6-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/javax/mail/javax.mail-api/debian/../../../../../java/javax.mail-api.jar