/usr/bin/opj_jpip_viewer is in libopenjpip-viewer 2.1.0-2.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/bin/../share/opj_jpip_viewer/opj_jpip_viewer.jar
/usr/bin/../share/opj_jpip_viewer/opj_jpip_viewer.jar