this.authorization = Preconditions.checkNotNull(authorization, "authorization");
Preconditions.checkArgument(this.authorization.isServerAllowed(), "Server was not allowed.");
Preconditions.checkArgument(sshSession instanceof ClientSessionImpl,
this.authorization = Preconditions.checkNotNull(authorization, "authorization");
Preconditions.checkArgument(this.authorization.isServerAllowed(), "Server was not allowed.");
Preconditions.checkArgument(sshSession instanceof ClientSessionImpl,