#1 Data: Open Socket, Invalid Format!

[markus strauss]

when trying to download files from a directory, i get this exception after some time:

Ftp> PASV
227 Entering Passive Mode (122,201,83,29,119,146)
Ftp> RETR /public_html/.htaccess
150 Accepted data connection

.zfproject.xml
.zfproject.xml is not a directory
Ftp> TYPE I
226-File successfully transferred
226 0.000 seconds (measured here), 6.41 Mbytes per second
Ftp> PASV
200 TYPE is now 8-bit binary
java.io.IOException: Data: OpenSocket, Invalid Format!
java.lang.NumberFormatException: Invalid Reply!
200 TYPE is now 8-bit binary
at cz.dhl.ftp.FtpDataSocket.openPassiveDataSocket(FtpDataSocket.java:99)

why?