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From "Yurii Kartsev (JIRA)" <j...@apache.org>
Subject [jira] Created: (VFS-323) The same "FileObject.exist()" call returns different values in Windows 7 and Linux Ubuntu while connected to simple FTP using port 22221
Date Fri, 01 Oct 2010 19:03:33 GMT
The same "FileObject.exist()" call returns different values in Windows 7 and Linux Ubuntu while
connected to simple FTP using port 22221
----------------------------------------------------------------------------------------------------------------------------------------

                 Key: VFS-323
                 URL: https://issues.apache.org/jira/browse/VFS-323
             Project: Commons VFS
          Issue Type: Bug
    Affects Versions: 2.0
         Environment: Windows 7 x64 & Linux Mint 9 Isadora(2.6.32-21-generic)
jdk1.6.0_18
commons-net-2.0.jar
commons-vfs-2.0-SNAPSHOT (built from revision 993538)
            Reporter: Yurii Kartsev


Good afternoon.

Today I've found an interesting thing in VFS. I've spent 4 hours testing it in different situations.
It looks like a bug, but I want to ask all of you first.

My code uses VFS to connect to FTP (simple FTP, but on port 22221) and copy a file from there(ftp://HOSTNAME:22221/alex/test.txt.asc.pgp).
But before copying I'm checking if the file exists using FileObject's method "exist()".
The thing is that when I run my JAR from command line of Windows 7, "exist()" returns true.
But if only I run the same JAR from Linux Mint 9 Isadora(2.6.32-21-generic), this method returns
false.
I've made a test and found out that if I change port from 22221 to simple 21, JAR runs fine
on both systems, i.e. "exist()" returns true. This strange thing in Linux happens only when
I use port number 22221.
I've tried different paths, it doesn't matter. The only thing that matter is port number.

Is it really some kind of a bug? Is there any workarounds?

My code for checking if the file exists is:

   FileObject dir = null;
   String fileName =
   ",AMCPROD,derivative_pricing_ssb_cds_20100910_00.xml.pgp,U,20100910A00012022189.txt";
   // .... dir initialization
   FileObject neededFile = dir.resolveFile(fileName);
   return neededFile.exists();

Thank you very much in advance. 

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