Hi, 

We've got an ant build which uses the Jsch library to copy across some files 
and run some commands on a deploy server. 

Recently we've been getting the following error: 

"com.jcraft.jsch.JSchException: channel is not opened." 

The error is strange because there's two places during the build where the Jsch 
code is called and the first section always completes successfully, whereas the 
second section fails with the above error. The SSH server doesn't output any 
errors to it's logs. 

We've added a "sleep" command between the two sections and after adding this 
the problem seems to go away. 

Are there any known issues with Jsch and trying to open connections too 
quickly? Or opening more than one connection at a time? Has anyone run into 
this problem before? 

Thank you 
Serge 
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