/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/ is in libplexus-utils-java-doc 1:1.5.15-4+deb9u1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/Arg.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/CommandLineException.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/CommandLineTimeOutException.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/CommandLineUtils.StringStreamConsumer.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/CommandLineUtils.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/Commandline.Argument.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/Commandline.Marker.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/Commandline.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/DefaultConsumer.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/EnhancedStringTokenizer.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/StreamConsumer.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/StreamFeeder.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/StreamPumper.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/WriterStreamConsumer.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/package-frame.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/package-summary.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/package-tree.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/shell/
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/shell/BourneShell.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/shell/CmdShell.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/shell/CommandShell.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/shell/Shell.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/shell/package-frame.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/shell/package-summary.html
/usr/share/doc/libplexus-utils-java/api/org/codehaus/plexus/util/cli/shell/package-tree.html