/usr/ is in libantlr-java 2.7.7+dfsg-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/java/
/usr/share/java/antlr.jar
/usr/share/doc/
/usr/share/doc/libantlr-java/
/usr/share/doc/libantlr-java/changelog.Debian.gz
/usr/share/doc/libantlr-java/copyright
/usr/share/maven-repo/
/usr/share/maven-repo/antlr/
/usr/share/maven-repo/antlr/antlr/
/usr/share/maven-repo/antlr/antlr/2.7.7/
/usr/share/maven-repo/antlr/antlr/2.7.7/antlr-2.7.7.pom
/usr/share/maven-repo/antlr/antlr/2.x/
/usr/share/maven-repo/antlr/antlr/2.x/antlr-2.x.pom
/usr/share/java/antlr-2.7.7.jar
/usr/share/java/antlr.debug.jar
/usr/share/java/antlrall.jar
/usr/share/maven-repo/antlr/antlr/2.7.7/antlr-2.7.7.jar
/usr/share/maven-repo/antlr/antlr/2.x/antlr-2.x.jar