/usr/ is in libmaven-exec-plugin-java 1.1.1+dfsg-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/maven-repo/org/codehaus/
/usr/share/maven-repo/org/codehaus/mojo/
/usr/share/maven-repo/org/codehaus/mojo/exec-maven-plugin/
/usr/share/
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/codehaus/mojo/exec-maven-plugin/1.1.1/
/usr/share/maven-repo/org/codehaus/mojo/exec-maven-plugin/1.1.1/exec-maven-plugin-1.1.1.pom
/usr/share/maven-repo/org/codehaus/mojo/exec-maven-plugin/1.1.1/exec-maven-plugin-1.1.1.jar
/usr/share/java/
/usr/share/doc/
/usr/share/doc/libmaven-exec-plugin-java/
/usr/share/doc/libmaven-exec-plugin-java/copyright
/usr/share/doc/libmaven-exec-plugin-java/changelog.Debian.gz
/usr/share/java/exec-maven-plugin.jar
/usr/share/java/exec-maven-plugin-1.1.1.jar