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https://issues.apache.org/jira/browse/SLING-7153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Egli resolved SLING-7153.
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Resolution: Fixed
> NPE in TopologyWebConsolePlugin
> -------------------------------
>
> Key: SLING-7153
> URL: https://issues.apache.org/jira/browse/SLING-7153
> Project: Sling
> Issue Type: Bug
> Affects Versions: Discovery Oak 1.2.14
> Reporter: Stefan Egli
> Assignee: Stefan Egli
> Priority: Minor
> Fix For: Discovery Oak 1.2.22
>
>
> The below NullPointerException has been witnessed. As the
> TopologyWebConsolePlugin is for display purpose only, there is no impact on
> functionality as a result of this (hence this is a minor issue)
> {noformat}18.09.2017 21:20:55.536 *ERROR* [Discovery-AsyncEventSender]
> org.apache.sling.discovery.oak.TopologyWebConsolePlugin
> addDiscoveryLiteHistoryEntry: Exception: java.lang.NullPointerException
> java.lang.NullPointerException: null
> at
> org.apache.sling.discovery.oak.TopologyWebConsolePlugin.getResourceResolver(TopologyWebConsolePlugin.java:233)
> at
> org.apache.sling.discovery.oak.TopologyWebConsolePlugin.updateDiscoveryLiteHistory(TopologyWebConsolePlugin.java:770)
> at
> org.apache.sling.discovery.oak.TopologyWebConsolePlugin.handleTopologyEvent(TopologyWebConsolePlugin.java:722)
> at
> org.apache.sling.discovery.commons.providers.base.AsyncTopologyEvent.trigger(AsyncTopologyEvent.java:53)
> at
> org.apache.sling.discovery.commons.providers.base.AsyncEventSender.run(AsyncEventSender.java:118)
> at java.lang.Thread.run(Thread.java:745){noformat}
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