/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/ 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/transport/ClientServerHello.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/KexManager.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/KexParameters.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/KexState.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/MessageHandler.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/NegotiateException.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/NegotiatedParameters.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/TransportConnection.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/TransportManager.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/package-frame.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/package-summary.html
/usr/share/doc/libganymed-ssh2-java/api/ch/ethz/ssh2/transport/package-tree.html