/usr/share/ is in libderbyclient-java 10.10.2.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/java/
/usr/share/java/derbyclient.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/derbyclient/
/usr/share/maven-repo/org/apache/derby/derbyclient/10.10.2.0/
/usr/share/maven-repo/org/apache/derby/derbyclient/10.10.2.0/derbyclient-10.10.2.0.pom
/usr/share/maven-repo/org/apache/derby/derbyclient/debian/
/usr/share/maven-repo/org/apache/derby/derbyclient/debian/derbyclient-debian.pom
/usr/share/doc/
/usr/share/doc/libderbyclient-java/
/usr/share/doc/libderbyclient-java/copyright
/usr/share/doc/libderbyclient-java/changelog.Debian.gz
/usr/share/java/derbyclient-10.10.2.0.jar
/usr/share/maven-repo/org/apache/derby/derbyclient/10.10.2.0/derbyclient-10.10.2.0.jar
/usr/share/maven-repo/org/apache/derby/derbyclient/debian/derbyclient-debian.jar