Netflix/Priam — pull request #328 by decbis (2014-04-08 06:03:26+00:00)
Title: Updated filter checks since it cannot be null.

Introducing a default of "" for the filter QueryParam in BackupServlet.list had the side effect that any calls to /backup/list without specifying a filter would fail with "java.lang.IllegalArgumentException: No enum constant com.netflix.priam.backup.AbstractBackupPath.BackupFileType".