/usr/share/i2p/lib/gnu-getopt.jar is in i2p-router 0.9.34-1ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/i2p/lib/../../java/gnu-getopt.jar
/usr/share/i2p/lib/../../java/gnu-getopt.jar