/usr/ is in derby-tools 10.10.1.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/derby/sysinfo
/usr/share/derby/ij
/usr/share/
/usr/share/doc/
/usr/share/doc/derby-tools/
/usr/share/doc/derby-tools/copyright
/usr/share/derby/
/usr/share/derby/dblook
/usr/share/derby/NetworkServerControl
/usr/share/derby/SignatureChecker
/usr/share/derby/PlanExporter
/usr/share/java/
/usr/share/java/derbytools.jar
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/apache/
/usr/share/maven-repo/org/apache/derby/
/usr/share/maven-repo/org/apache/derby/derbytools/
/usr/share/maven-repo/org/apache/derby/derbytools/debian/
/usr/share/maven-repo/org/apache/derby/derbytools/debian/derbytools-debian.pom
/usr/share/maven-repo/org/apache/derby/derbytools/10.10.1.1/
/usr/share/maven-repo/org/apache/derby/derbytools/10.10.1.1/derbytools-10.10.1.1.pom
/usr/bin/
/usr/share/doc/derby-tools/changelog.Debian.gz
/usr/share/java/derbytools-10.10.1.1.jar
/usr/share/maven-repo/org/apache/derby/derbytools/debian/derbytools-debian.jar
/usr/share/maven-repo/org/apache/derby/derbytools/10.10.1.1/derbytools-10.10.1.1.jar
/usr/bin/derbyctl
/usr/bin/ij
/usr/bin/dblook