/usr/ is in libspring-web-portlet-java 4.3.5-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/libspring-web-portlet-java/
/usr/share/doc/libspring-web-portlet-java/changelog.Debian.gz
/usr/share/doc/libspring-web-portlet-java/copyright
/usr/share/java/
/usr/share/java/spring3-web.portlet-3.x.jar
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/springframework/
/usr/share/maven-repo/org/springframework/spring-webmvc-portlet/
/usr/share/maven-repo/org/springframework/spring-webmvc-portlet/3.x/
/usr/share/maven-repo/org/springframework/spring-webmvc-portlet/3.x/spring-webmvc-portlet-3.x.pom
/usr/share/maven-repo/org/springframework/spring-webmvc-portlet/4.3.5.RELEASE/
/usr/share/maven-repo/org/springframework/spring-webmvc-portlet/4.3.5.RELEASE/spring-webmvc-portlet-4.3.5.RELEASE.pom
/usr/share/maven-repo/org/springframework/spring-webmvc-portlet/debian/
/usr/share/maven-repo/org/springframework/spring-webmvc-portlet/debian/spring-webmvc-portlet-debian.pom
/usr/share/java/spring3-web.portlet.jar
/usr/share/maven-repo/org/springframework/spring-webmvc-portlet/4.3.5.RELEASE/spring-webmvc-portlet-4.3.5.RELEASE.jar
/usr/share/maven-repo/org/springframework/spring-webmvc-portlet/debian/spring-webmvc-portlet-debian.jar