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https://issues.apache.org/jira/browse/VFS-617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16975846#comment-16975846
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Vineet Tyagi commented on VFS-617:
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[~nimlhug] Thanks a lot for your reply. It seems then it will not be working if
someone tries to connect to sftp server at windows environment. But it seems
very strange that no one complained about it. Are you aware if there is any
workaround like any other library updates (jsch) for 2.4.1 or something else
that it might work?
Thanks
Vineet
> isReadable fails if unable to determine group identity
> ------------------------------------------------------
>
> Key: VFS-617
> URL: https://issues.apache.org/jira/browse/VFS-617
> Project: Commons VFS
> Issue Type: Bug
> Affects Versions: 2.1
> Environment: Windows 7 Java 7. Failure occured connecting via SFTP to
> a Synology box running DSM 6.
> Reporter: Tim Nickels
> Priority: Major
>
> The doIsReadable method of SftpFileObject throws an exception if the system
> cannot identify group/owner permissions.......
> Exception in thread "main" org.apache.commons.vfs2.FileSystemException: Could
> not determine if file "sftp://myURI"; is readable.
> at
> org.apache.commons.vfs2.provider.AbstractFileObject.isReadable(AbstractFileObject.java:1761)
> at com.avenca.vfs.VFSUtils.main(VFSUtils.java:41)
> Caused by: com.jcraft.jsch.JSchException: Could not get the groups id of the
> current user (error code: 1)
> at
> org.apache.commons.vfs2.provider.sftp.SftpFileSystem.getGroupsIds(SftpFileSystem.java:263)
> at
> org.apache.commons.vfs2.provider.sftp.SftpFileObject.getPermissions(SftpFileObject.java:317)
> at
> org.apache.commons.vfs2.provider.sftp.SftpFileObject.doIsReadable(SftpFileObject.java:335)
> at
> org.apache.commons.vfs2.provider.AbstractFileObject.isReadable(AbstractFileObject.java:1757)
> The problem is the method is using
> return getPermissions(true).isReadable()
> The folder *is* readable without these permissions, and so should be set to
> return getPermissions(false).isReadable()
> Which correctly allows the system to identify a readable folder without
> adding unnecessary restrictions.
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