tomaswolf commented on issue #621:
URL: https://github.com/apache/mina-sshd/issues/621#issuecomment-2401900954

   The log doesn't help; I see nothing related to parsing a timestamp out of an 
SSH_FXP_ATTRS command. I _do_ see some idle timeout expiring and then shutting 
down some SSH session, but that seems to be unrelated.
   
   This looks like a mismatch between SFTP versions. I don't see in the log 
what SFTP version was negotiated. Normally, the DefaultSftpClient does log that 
at debug log level. Why is it not in this log?
   
   Also, you reported this against 2.14.0, but the line numbers in the 
exception you show do not match 2.14.0. From the line numbers, you must be 
using a version <= 2.13.0.
   
   In any case, in SFTPv3, file times are uint32, and in higher versions they 
are uint64. So most likely the client tries to parse a v3 reply as as a >v3 
reply. The server seems to a ProFTPD, which does support SFTP >v3.
   
   I would limit your client to use SFTP v3 only with that server.
   
   
   


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