[STORM-1945] Internal Server Error shown on topology page for topology using KafkaSpout - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Critical
Resolution: Fixed
Affects Version/s: 2.0.0, 1.1.0
Fix Version/s: 2.0.0, 1.1.0
Component/s: storm-ui
Labels:
None

Epic Link:
Release Apache Storm 1.1.0

Description

When opening topology page which uses old storm-kafka Spout, page shows Internal Server Error on bottom side.
And REST API /api/v1/topology/:topology/lag also shows Internal Server Error.
Its errorMessage is describing NPE, but stack track gives less help since it's already within catch statement so we can't trace why origin exception is thrown by only looking at errorMessage. And there's no error message on ui log file.