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https://issues.apache.org/jira/browse/IGNITE-28246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Abashev resolved IGNITE-28246.
-----------------------------------
Resolution: Fixed
> Fix NPE in GridMarshallerMappingProcessor
> -----------------------------------------
>
> Key: IGNITE-28246
> URL: https://issues.apache.org/jira/browse/IGNITE-28246
> Project: Ignite
> Issue Type: Task
> Reporter: Alex Abashev
> Assignee: Alex Abashev
> Priority: Major
> Labels: IEP-132, ise
> Fix For: 2.19
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> IgniteOfflineBaselineNodeFullApiSelfTest crashes with
>
> [2026-03-16T17:39:06,372][ERROR][disco-notifier-worker-#58%baseline.IgniteOfflineBaselineNodeFullApiSelfTest0%][GridDiscoveryManager]
> Failed to notify direct custom event listener: MappingAcceptedMessage
> [id=875e517fc91-ccb109cc-b560-4378-b548-c5eb82066a2b, item=null]
>
> java.lang.NullPointerException
> at
> org.apache.ignite.internal.MarshallerContextImpl.onMappingAccepted(MarshallerContextImpl.java:418)
> at
> org.apache.ignite.internal.processors.marshaller.GridMarshallerMappingProcessor$MappingAcceptedListener.onCustomEvent(GridMarshallerMappingProcessor.java:306)
> at
> org.apache.ignite.internal.processors.marshaller.GridMarshallerMappingProcessor$MappingAcceptedListener.onCustomEvent(GridMarshallerMappingProcessor.java:298)
> at
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$3.onDiscovery0(GridDiscoveryManager.java:755)
> at
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$3$NotificationTask.run(GridDiscoveryManager.java:971)
> at
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$DiscoveryMessageNotifierWorker.body0(GridDiscoveryManager.java:2863)
> at
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$DiscoveryMessageNotifierWorker.body(GridDiscoveryManager.java:2901)
> at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:125)
> at java.base/java.lang.Thread.run(Thread.java:829)
> [2026-03-16T17:39:06,372][ERROR][disco-notifier-worker-#122%baseline.IgniteOfflineBaselineNodeFullApiSelfTest1%][GridDiscoveryManager]
>
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