/usr/share/doc/libcommons-fileupload-java/api/org/apache/commons/fileupload/disk/ is in libcommons-fileupload-java-doc 1.3.1-1+deb8u1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libcommons-fileupload-java/api/org/apache/commons/fileupload/disk/DiskFileItem.html
/usr/share/doc/libcommons-fileupload-java/api/org/apache/commons/fileupload/disk/DiskFileItemFactory.html
/usr/share/doc/libcommons-fileupload-java/api/org/apache/commons/fileupload/disk/class-use/
/usr/share/doc/libcommons-fileupload-java/api/org/apache/commons/fileupload/disk/class-use/DiskFileItem.html
/usr/share/doc/libcommons-fileupload-java/api/org/apache/commons/fileupload/disk/class-use/DiskFileItemFactory.html
/usr/share/doc/libcommons-fileupload-java/api/org/apache/commons/fileupload/disk/package-frame.html
/usr/share/doc/libcommons-fileupload-java/api/org/apache/commons/fileupload/disk/package-summary.html
/usr/share/doc/libcommons-fileupload-java/api/org/apache/commons/fileupload/disk/package-tree.html
/usr/share/doc/libcommons-fileupload-java/api/org/apache/commons/fileupload/disk/package-use.html