[HIVE-7997] Potential null pointer reference in ObjectInspectorUtils#compareTypes()

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.2, 1.1.0
• Component/s: Types
• Assignee: Navis Ryu
• Reporter: Ted Yu
• Created: 05/Sep/14 03:38
• Updated: 10/Aug/15 23:01
• Resolved: 16/Nov/14 05:52

Description

      if (childFieldsList1 == null && childFieldsList2 == null) {
        return true;
      }

      if (childFieldsList1.size() != childFieldsList2.size()) {
        return false;
      }

If either childFieldsList1 or childFieldsList2 is null but not both, the second if statement would produce NPE.