/usr/share/doc/libowasp-antisamy-java/api/org/owasp/validator/html/class-use/ is in libowasp-antisamy-java-doc 1.5.3+dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libowasp-antisamy-java/api/org/owasp/validator/html/class-use/AntiSamy.html
/usr/share/doc/libowasp-antisamy-java/api/org/owasp/validator/html/class-use/CleanResults.html
/usr/share/doc/libowasp-antisamy-java/api/org/owasp/validator/html/class-use/InternalPolicy.html
/usr/share/doc/libowasp-antisamy-java/api/org/owasp/validator/html/class-use/Policy.ParseContext.html
/usr/share/doc/libowasp-antisamy-java/api/org/owasp/validator/html/class-use/Policy.html
/usr/share/doc/libowasp-antisamy-java/api/org/owasp/validator/html/class-use/PolicyException.html
/usr/share/doc/libowasp-antisamy-java/api/org/owasp/validator/html/class-use/ScanException.html
/usr/share/doc/libowasp-antisamy-java/api/org/owasp/validator/html/class-use/TagMatcher.html