[SSHD-807] SFTP should accept empty owner/group value when setting attributes

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.0
• Fix Version/s: 2.0.0
• Assignee: Lyor Goldstein
• Reporter: Lyor Goldstein
• Created: 06/Mar/18 15:08
• Updated: 06/Mar/18 19:10
• Resolved: 06/Mar/18 19:10

Description

According to SFTP version 6 - section 7.5:

If either the owner or group field is zero length, the field should be considered absent, and no change should be made to that specific field during a modification operation.

see also https://stackoverflow.com/questions/49129859/apache-mina-sshd-project-throws-error-if-file-owner-and-group-owner-is-blank