/usr/lib/x86_64-linux-gnu/libomniConnectionMgmt4.so is in libomniorb4-dev 4.2.2-0.8.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libomniConnectionMgmt4.so.2
/usr/lib/x86_64-linux-gnu/libomniConnectionMgmt4.so.2