/usr/share/doc/libmaven-shade-plugin-java/api/org/apache/maven/plugins/shade/filter/ is in libmaven-shade-plugin-java-doc 1.2.1-4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libmaven-shade-plugin-java/api/org/apache/maven/plugins/shade/filter/Filter.html
/usr/share/doc/libmaven-shade-plugin-java/api/org/apache/maven/plugins/shade/filter/SimpleFilter.html
/usr/share/doc/libmaven-shade-plugin-java/api/org/apache/maven/plugins/shade/filter/class-use/
/usr/share/doc/libmaven-shade-plugin-java/api/org/apache/maven/plugins/shade/filter/class-use/Filter.html
/usr/share/doc/libmaven-shade-plugin-java/api/org/apache/maven/plugins/shade/filter/class-use/SimpleFilter.html
/usr/share/doc/libmaven-shade-plugin-java/api/org/apache/maven/plugins/shade/filter/package-frame.html
/usr/share/doc/libmaven-shade-plugin-java/api/org/apache/maven/plugins/shade/filter/package-summary.html
/usr/share/doc/libmaven-shade-plugin-java/api/org/apache/maven/plugins/shade/filter/package-tree.html
/usr/share/doc/libmaven-shade-plugin-java/api/org/apache/maven/plugins/shade/filter/package-use.html