/usr/share/maven-repo/com/jcraft/jsch.agentproxy.core/debian/jsch.agentproxy.core-debian.jar is in libjsch-agent-proxy-java 0.0.8-2ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/com/jcraft/jsch.agentproxy.core/debian/../../../../../java/jsch.agentproxy.core-0.0.8.jar