#1 incorrect sanity cheking in FtpConnection constructor

[Anonymous]

public FtpConnection(Uri uri)
{
if (uri != null)
throw new NullReferenceException("uri");

_uri = uri;
_username = "Anonymous";
_password = string.Empty;
}

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may be this one?

public FtpConnection(Uri uri)
{
if (uri == null)
throw new NullReferenceException("uri");

_uri = uri;
_username = "Anonymous";
_password = string.Empty;
}