/usr/share/maven-repo/net/java/dev/jets3t/jets3t/0.x/jets3t-0.x.jar is in libjets3t-java 0.8.1+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/net/java/dev/jets3t/jets3t/0.x/../../../../../../../java/jets3t-0.8.1.jar