/usr/lib/x86_64-linux-gnu/jni/liblttng-ust-jul-jni.so is in liblttng-ust-agent-java-jni 2.10.1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/jni/liblttng-ust-jul-jni.so.0.0.0