/usr/share/doc/libsvm-java/changelog.Debian.gz is in libsvm-java 3.12-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libsvm-java/../libsvm3-java/changelog.Debian.gz
/usr/share/doc/libsvm-java/../libsvm3-java/changelog.Debian.gz