/usr/share/maven-repo/org/apache/geronimo/specs/geronimo-concurrent_1.0_spec/debian/geronimo-concurrent_1.0_spec-debian.jar is in libgeronimo-concurrent-1.0-spec-java 1.0~alpha-1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/org/apache/geronimo/specs/geronimo-concurrent_1.0_spec/debian/../../../../../../../java/geronimo-concurrent-1.0-spec.jar