NXP-14045: disallow negative ACLs at the API level
NXP-15594: fix NPE when exporting widget with subwidget references
NXP-15595: add API to retrieve default name for a given row
NXP-15433: avoid NullPointerException when corresponding action is not defined
NXP-15597: deal with both List and array
NXP-15394: create mock bucket when in selection but not in es result