/usr/share/maven-repo/ is in libnb-org-openide-util-java 8.1+dfsg1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/netbeans/
/usr/share/maven-repo/org/netbeans/api/
/usr/share/maven-repo/org/netbeans/api/org-openide-util/
/usr/share/maven-repo/org/netbeans/api/org-openide-util-ui/
/usr/share/maven-repo/org/netbeans/api/org-openide-util-ui/8.1/
/usr/share/maven-repo/org/netbeans/api/org-openide-util-ui/8.1/org-openide-util-ui-8.1.jar
/usr/share/maven-repo/org/netbeans/api/org-openide-util-ui/8.1/org-openide-util-ui-8.1.pom
/usr/share/maven-repo/org/netbeans/api/org-openide-util-ui/debian/
/usr/share/maven-repo/org/netbeans/api/org-openide-util-ui/debian/org-openide-util-ui-debian.jar
/usr/share/maven-repo/org/netbeans/api/org-openide-util-ui/debian/org-openide-util-ui-debian.pom
/usr/share/maven-repo/org/netbeans/api/org-openide-util/8.1/
/usr/share/maven-repo/org/netbeans/api/org-openide-util/8.1/org-openide-util-8.1.jar
/usr/share/maven-repo/org/netbeans/api/org-openide-util/8.1/org-openide-util-8.1.pom
/usr/share/maven-repo/org/netbeans/api/org-openide-util/debian/
/usr/share/maven-repo/org/netbeans/api/org-openide-util/debian/org-openide-util-debian.jar
/usr/share/maven-repo/org/netbeans/api/org-openide-util/debian/org-openide-util-debian.pom