/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/ is in libflute-java-doc 1:1.1.6-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/CharStream.html
/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/Generic_CharStream.html
/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/JumpException.html
/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/LocatorImpl.html
/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/MediaListImpl.html
/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/ParseException.html
/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/Parser.html
/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/ParserConstants.html
/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/ParserTokenManager.html
/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/Token.html
/usr/share/doc/libflute-java/api/org/w3c/flute/parser/class-use/TokenMgrError.html