/usr/share/ is in libhsqldb-java-doc 2.3.3+dfsg2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc-base/
/usr/share/doc-base/hsqldb-guide
/usr/share/doc/
/usr/share/doc/libhsqldb-java-doc/
/usr/share/doc/libhsqldb-java-doc/examples/
/usr/share/doc/libhsqldb-java-doc/examples/memorydbmanager.html
/usr/share/doc/libhsqldb-java-doc/guide/
/usr/share/doc/libhsqldb-java-doc/guide/sqlgeneral-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/unix-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/guide.html
/usr/share/doc/libhsqldb-java-doc/guide/listeners-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/dataaccess-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/guide.pdf.gz
/usr/share/doc/libhsqldb-java-doc/guide/building-app.html
/usr/share/doc/libhsqldb-java-doc/guide/builtinfunctions-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/running-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/index.html
/usr/share/doc/libhsqldb-java-doc/guide/gradle-gui.png
/usr/share/doc/libhsqldb-java-doc/guide/eclipse-gradle-cfg.png
/usr/share/doc/libhsqldb-java-doc/guide/deployment-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/sessions-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/accesscontrol-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/triggers-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/filelinks-app.html
/usr/share/doc/libhsqldb-java-doc/guide/book-pref.html
/usr/share/doc/libhsqldb-java-doc/guide/sql-ind.html
/usr/share/doc/libhsqldb-java-doc/guide/eclipse-gradle-invoke.png
/usr/share/doc/libhsqldb-java-doc/guide/sqlroutines-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/openoffice-app.html
/usr/share/doc/libhsqldb-java-doc/guide/book-ind.html
/usr/share/doc/libhsqldb-java-doc/guide/databaseobjects-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/lists-app.html
/usr/share/doc/libhsqldb-java-doc/guide/dummy.html
/usr/share/doc/libhsqldb-java-doc/guide/texttables-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/compatibility-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/management-chapt.html
/usr/share/doc/libhsqldb-java-doc/guide/dbproperties-chapt.html
/usr/share/doc/libhsqldb-java-doc/copyright
/usr/share/doc/libhsqldb-java-doc/changelog.Debian.gz