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From "Paul Titheridge (JIRA)" <j...@apache.org>
Subject [jira] [Created] (NET-553) listFiles(String) returns an empty list, even though FTP Server has sent back data
Date Wed, 13 Aug 2014 13:49:11 GMT
Paul Titheridge created NET-553:
-----------------------------------

             Summary: listFiles(String) returns an empty list, even though FTP Server has
sent back data
                 Key: NET-553
                 URL: https://issues.apache.org/jira/browse/NET-553
             Project: Commons Net
          Issue Type: Bug
          Components: FTP
    Affects Versions: 3.3, 2.0
         Environment: AIX
            Reporter: Paul Titheridge


We've been using the Apache Commons 2.0 and 3.3 library for a while now, and have just run
into an issue.

The FTP client application and the FTP Server are running on different AIX systems.

When the FTP application calls the:

  FTPClient.listFiles(String) 

command to get some information about a file stored on the FTP Server,  the method intermittently
returns an array containing no elements. However, looking at documentation from both the FTP
Server and the network, it can be seen that the FTP Server is actually sending back what appears
to be a valid response to the LIST command issued by FTPClient.listFiles(String).

The response sent by the FTP Server contains the file name and attribute information, which
is what we expect to see. For some reason, that information is not returned back to the application
by the FTPClient.listFiles(String) method.

The problem only seems to occur under load.

Has anyone seen this before, or have any suggestions as to what might be causing it? 

Thanks in advance

Paul



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