/usr/share/doc/libfannj-java/api/ is in libfannj-java-doc 0.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libfannj-java/api/allclasses-frame.html
/usr/share/doc/libfannj-java/api/allclasses-noframe.html
/usr/share/doc/libfannj-java/api/com/
/usr/share/doc/libfannj-java/api/com/googlecode/
/usr/share/doc/libfannj-java/api/com/googlecode/fannj/
/usr/share/doc/libfannj-java/api/com/googlecode/fannj/ActivationFunction.html
/usr/share/doc/libfannj-java/api/com/googlecode/fannj/Fann.html
/usr/share/doc/libfannj-java/api/com/googlecode/fannj/FannShortcut.html
/usr/share/doc/libfannj-java/api/com/googlecode/fannj/FannSparse.html
/usr/share/doc/libfannj-java/api/com/googlecode/fannj/Layer.html
/usr/share/doc/libfannj-java/api/com/googlecode/fannj/Neuron.html
/usr/share/doc/libfannj-java/api/com/googlecode/fannj/Trainer.html
/usr/share/doc/libfannj-java/api/com/googlecode/fannj/package-frame.html
/usr/share/doc/libfannj-java/api/com/googlecode/fannj/package-summary.html
/usr/share/doc/libfannj-java/api/com/googlecode/fannj/package-tree.html
/usr/share/doc/libfannj-java/api/constant-values.html
/usr/share/doc/libfannj-java/api/deprecated-list.html
/usr/share/doc/libfannj-java/api/help-doc.html
/usr/share/doc/libfannj-java/api/index-all.html
/usr/share/doc/libfannj-java/api/index.html
/usr/share/doc/libfannj-java/api/overview-tree.html
/usr/share/doc/libfannj-java/api/package-list
/usr/share/doc/libfannj-java/api/resources/
/usr/share/doc/libfannj-java/api/resources/inherit.gif
/usr/share/doc/libfannj-java/api/serialized-form.html
/usr/share/doc/libfannj-java/api/stylesheet.css