/usr/ is in liblucene3-java 3.6.2+dfsg-10+deb9u2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/liblucene3-java/
/usr/share/doc/liblucene3-java/NOTICE.txt.gz
/usr/share/doc/liblucene3-java/README.txt
/usr/share/doc/liblucene3-java/changelog.Debian.gz
/usr/share/doc/liblucene3-java/changelog.gz
/usr/share/doc/liblucene3-java/copyright
/usr/share/java/
/usr/share/java/lucene3-core-3.6.2.jar
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/apache/
/usr/share/maven-repo/org/apache/lucene/
/usr/share/maven-repo/org/apache/lucene/lucene-core/
/usr/share/maven-repo/org/apache/lucene/lucene-core/3.6.2/
/usr/share/maven-repo/org/apache/lucene/lucene-core/3.6.2/lucene-core-3.6.2.pom
/usr/share/maven-repo/org/apache/lucene/lucene-core/debian/
/usr/share/maven-repo/org/apache/lucene/lucene-core/debian/lucene-core-debian.pom
/usr/share/maven-repo/org/apache/lucene/lucene-parent/
/usr/share/maven-repo/org/apache/lucene/lucene-parent/3.6.2/
/usr/share/maven-repo/org/apache/lucene/lucene-parent/3.6.2/lucene-parent-3.6.2.pom
/usr/share/maven-repo/org/apache/lucene/lucene-parent/debian/
/usr/share/maven-repo/org/apache/lucene/lucene-parent/debian/lucene-parent-debian.pom
/usr/share/maven-repo/org/apache/lucene/lucene-solr-grandparent/
/usr/share/maven-repo/org/apache/lucene/lucene-solr-grandparent/3.6.2/
/usr/share/maven-repo/org/apache/lucene/lucene-solr-grandparent/3.6.2/lucene-solr-grandparent-3.6.2.pom
/usr/share/maven-repo/org/apache/lucene/lucene-solr-grandparent/debian/
/usr/share/maven-repo/org/apache/lucene/lucene-solr-grandparent/debian/lucene-solr-grandparent-debian.pom
/usr/share/java/lucene3-core.jar
/usr/share/maven-repo/org/apache/lucene/lucene-core/3.6.2/lucene-core-3.6.2.jar
/usr/share/maven-repo/org/apache/lucene/lucene-core/debian/lucene-core-debian.jar