/usr/share/ant/lib/ is in ant-optional 1.10.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ant/lib/ant-antlr.jar
/usr/share/ant/lib/ant-apache-bcel.jar
/usr/share/ant/lib/ant-apache-bsf.jar
/usr/share/ant/lib/ant-apache-log4j.jar
/usr/share/ant/lib/ant-apache-oro.jar
/usr/share/ant/lib/ant-apache-regexp.jar
/usr/share/ant/lib/ant-apache-resolver.jar
/usr/share/ant/lib/ant-apache-xalan2.jar
/usr/share/ant/lib/ant-commons-logging.jar
/usr/share/ant/lib/ant-commons-net.jar
/usr/share/ant/lib/ant-javamail.jar
/usr/share/ant/lib/ant-jdepend.jar
/usr/share/ant/lib/ant-jmf.jar
/usr/share/ant/lib/ant-jsch.jar
/usr/share/ant/lib/ant-junit.jar
/usr/share/ant/lib/ant-junit4.jar
/usr/share/ant/lib/ant-swing.jar
/usr/share/ant/lib/ant-testutil.jar
/usr/share/ant/lib/ant-xz.jar