boris-petrov commented on issue #36: fix for VFS-662: SftpFileSystem has Thread-safe issue about idleChannel URL: https://github.com/apache/commons-vfs/pull/36#issuecomment-487393002 @garydgregory - I'm not familiar with the specific code here but the diff that I see here is totally safe - `idleChannel` is `volatile` and it's the only variable on which DCL is performed. This is safe since Java 1.5. Why do you think `session` also has to be?
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