/usr/share/doc/antlr4/changelog.Debian.gz is in antlr4 4.5.3-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/antlr4/../libantlr4-runtime-java/changelog.Debian.gz
/usr/share/doc/antlr4/../libantlr4-runtime-java/changelog.Debian.gz