Common FTP servers (like vsftpd) responses' to PWD don't have a commentary as per RFC959.
vsftpd, MockFtpServer and others respond thusly:
> 257 "/"
The current handling in FTPClient.__parsePathname simply returns everything after "257 ". This breaks other code that relies on Apache FTPClient, like the Camel FTP2 component.
I suggest that, for increased resilience, this brief response be special-cased.
vsftpd maintainer has been notified too, but it's just an email address.