/usr/share/maven-repo/ is in libjenkins-xstream-java 1.4.4-jenkins-4-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/jvnet/
/usr/share/maven-repo/org/jvnet/hudson/
/usr/share/maven-repo/org/jvnet/hudson/xstream/
/usr/share/maven-repo/org/jvnet/hudson/xstream-parent/
/usr/share/maven-repo/org/jvnet/hudson/xstream-parent/1.4.4/
/usr/share/maven-repo/org/jvnet/hudson/xstream-parent/1.4.4/xstream-parent-1.4.4.pom
/usr/share/maven-repo/org/jvnet/hudson/xstream-parent/debian/
/usr/share/maven-repo/org/jvnet/hudson/xstream-parent/debian/xstream-parent-debian.pom
/usr/share/maven-repo/org/jvnet/hudson/xstream/1.4.4-jenkins-4/
/usr/share/maven-repo/org/jvnet/hudson/xstream/1.4.4-jenkins-4/xstream-1.4.4-jenkins-4.jar
/usr/share/maven-repo/org/jvnet/hudson/xstream/1.4.4-jenkins-4/xstream-1.4.4-jenkins-4.pom
/usr/share/maven-repo/org/jvnet/hudson/xstream/debian/
/usr/share/maven-repo/org/jvnet/hudson/xstream/debian/xstream-debian.jar
/usr/share/maven-repo/org/jvnet/hudson/xstream/debian/xstream-debian.pom