Details
Major Description
In "active mode" , the FtpServer itself will try to open a connection to a client-reported host and port.
In this case, if we were using a SSL connection, the server opens a connection to the client so it will receive the client's public certificate and will try and check it against its TrustStore.
To my mind, when we are not checking the client certificate we shouldn't check it in Active data connections either. So we should provide our own TrustManager for this.