/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/ is in libganymed-ssh2-java 250-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/Channel.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/ChannelInputStream.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/ChannelManager.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/ChannelOutputStream.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/LocalAcceptThread.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/RemoteAcceptThread.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/RemoteForwardingData.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/RemoteX11AcceptThread.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/StreamForwarder.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/X11ServerData.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/package-frame.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/package-summary.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/channel/package-tree.html