/usr/lib/libreoffice/ is in libreoffice-dev-common 1:6.0.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/libreoffice/sdk/
/usr/lib/libreoffice/sdk/classes/
/usr/lib/libreoffice/sdk/classes/com/
/usr/lib/libreoffice/sdk/classes/com/sun/
/usr/lib/libreoffice/sdk/classes/com/sun/star/
/usr/lib/libreoffice/sdk/classes/com/sun/star/lib/
/usr/lib/libreoffice/sdk/classes/com/sun/star/lib/loader/
/usr/lib/libreoffice/sdk/classes/com/sun/star/lib/loader/InstallationFinder$StreamGobbler.class
/usr/lib/libreoffice/sdk/classes/com/sun/star/lib/loader/InstallationFinder.class
/usr/lib/libreoffice/sdk/classes/com/sun/star/lib/loader/Loader$1.class
/usr/lib/libreoffice/sdk/classes/com/sun/star/lib/loader/Loader$CustomURLClassLoader.class
/usr/lib/libreoffice/sdk/classes/com/sun/star/lib/loader/Loader$Drain.class
/usr/lib/libreoffice/sdk/classes/com/sun/star/lib/loader/Loader.class
/usr/lib/libreoffice/sdk/classes/com/sun/star/lib/loader/WinRegKey.class
/usr/lib/libreoffice/sdk/classes/com/sun/star/lib/loader/WinRegKeyException.class
/usr/lib/libreoffice/sdk/classes/win/
/usr/lib/libreoffice/sdk/classes/win/unowinreg.dll
/usr/lib/libreoffice/sdk/config.guess
/usr/lib/libreoffice/sdk/config.sub
/usr/lib/libreoffice/sdk/configure.pl
/usr/lib/libreoffice/sdk/index.html
/usr/lib/libreoffice/sdk/setsdkenv_unix
/usr/lib/libreoffice/sdk/setsdkenv_unix.sh
/usr/lib/libreoffice/sdk/setsdkenv_unix.sh.in
/usr/lib/libreoffice/sdk/settings/
/usr/lib/libreoffice/sdk/settings/platform.mk
/usr/lib/libreoffice/sdk/settings/settings.mk
/usr/lib/libreoffice/sdk/settings/std.mk
/usr/lib/libreoffice/sdk/settings/stdtarget.mk
/usr/lib/libreoffice/share/
/usr/lib/libreoffice/share/glade/
/usr/lib/libreoffice/share/glade/libreoffice-catalog.xml