[HIVE-9936] fix potential NPE in DefaultUDAFEvaluatorResolver

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0
• Component/s: UDF
• Assignee: Alexander Pivovarov
• Reporter: Alexander Pivovarov
• Created: 12/Mar/15 03:27
• Updated: 18/May/15 19:52
• Resolved: 16/Mar/15 17:41

Description

In some cases DefaultUDAFEvaluatorResolver calls new AmbiguousMethodException(udafClass, null, null) (line 94)
This will throw NPE because AmbiguousMethodException calls argTypeInfos.toString()
argTypeInfos is the second parameter and it can not be null.

Issue Links

• links to: https://reviews.apache.org/r/31972/