[HIVE-7306] Ineffective null check in GenericUDAFAverage#GenericUDAFAverageEvaluatorDouble#getNextResult()

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 0.13.1
• Labels: patch
• Assignee: skrho
• Reporter: Ted Yu
• Created: 27/Jun/14 18:03
• Updated: 02/Sep/14 06:30
• Resolved: 02/Sep/14 06:21

Description

            Object[] o = ss.intermediateVals.remove(0);
            Double d = o == null ? 0.0 : (Double) o[0];
            r = r == null ? null : r - d;
            cnt = cnt - ((Long) o[1]);

Array o is accessed without null check in the last line above.

Issue Links

• duplicates: HIVE-7539 streaming windowing UDAF seems to be broken without Partition Spec