/usr/share/netbeans/platform13/modules/ext/felix-main-2.0.2.jar is in libnb-platform13-java 7.0.1+dfsg1-5ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/netbeans/platform13/modules/ext/../../../../java/org.apache.felix.main.jar