/usr/share/doc/libjlayer-java/api/javazoom/jl/player/ is in libjlayer-java-doc 1.0.1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/AudioDevice.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/AudioDeviceBase.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/AudioDeviceFactory.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/FactoryRegistry.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/JavaSoundAudioDevice.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/JavaSoundAudioDeviceFactory.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/NullAudioDevice.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/Player.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/PlayerApplet.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/advanced/
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/advanced/AdvancedPlayer.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/advanced/PlaybackEvent.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/advanced/PlaybackListener.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/advanced/jlap.InfoListener.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/advanced/jlap.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/advanced/package-frame.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/advanced/package-summary.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/advanced/package-tree.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/jlp.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/package-frame.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/package-summary.html
/usr/share/doc/libjlayer-java/api/javazoom/jl/player/package-tree.html