* stable-5.0: Fix NoSuchFileException during directory cleanup in RefDirectory Externalize warning message in RefDirectory.delete() Suppress warning for trying to delete non-empty directory Change-Id: I9371f354d685545cc6a268420e44ae4c9577680f Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>tags/v5.1.1.201809181055-r