/usr/share/ant/ is in ant-optional 1.9.6-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ant/etc/
/usr/share/ant/etc/ant-update.xsl
/usr/share/ant/etc/checkstyle/
/usr/share/ant/etc/checkstyle/RequiredHeader.txt
/usr/share/ant/etc/checkstyle/checkstyle-config
/usr/share/ant/etc/checkstyle/checkstyle-frames-sortby-check.xsl
/usr/share/ant/etc/checkstyle/checkstyle-frames.xsl
/usr/share/ant/etc/checkstyle/checkstyle-text.xsl
/usr/share/ant/etc/checkstyle/checkstyle-xdoc.xsl
/usr/share/ant/lib/
/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