FTPClient listFiles returns incorrect timestamp on freshly uploaded file but 
corrects itself after about 15 minutes
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                 Key: NET-140
                 URL: http://issues.apache.org/jira/browse/NET-140
             Project: Commons Net
          Issue Type: Bug
    Affects Versions: 1.4 Final
         Environment: Windows local client site, Linux remote server site
            Reporter: Bill Giel


This is an odd one:

We upload GPS data each hour to a public site using FTPClient. Every 24 hours 
we check for files older than 60 days using listFiles and getting the 
timestamps do decide if we want to delete older files.

When we list the files, the most recently uploaded files have a time stamp 
exactly one year too old. After about 15 minutes, it seems to correct itself 
and eventually displays the correct timestamp.

During this time while FTPFile.getTimestamp is giving the incorrect timestamp, 
browsing the folder with a web browser, a commercial FTP client, or actually 
checking the file info in a shell shows the correct timestamp (i.e. does not 
seem to be a problem on the remote site)

commons-net-1.4.1 (as well as commons-net-20060901) exhibits this behavior.

commons-net-1.3.0 works properly

I did a little investigating, and it seems to happen with every file written to 
the remote directory each hour, and the incorrect timestamp will be returned 
using listFiles for about 15 minutes... and then it corrects itself.


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