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https://issues.apache.org/jira/browse/NIFI-11978?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Handermann resolved NIFI-11978.
-------------------------------------
Fix Version/s: 2.0.0
Resolution: Fixed
> NPE when trying to disable Management Controller Service
> --------------------------------------------------------
>
> Key: NIFI-11978
> URL: https://issues.apache.org/jira/browse/NIFI-11978
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Tamas Palfy
> Assignee: Tamas Palfy
> Priority: Major
> Fix For: 2.0.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> -With https://issues.apache.org/jira/browse/NIFI-11556 controller services
> implement the GroupedComponent interface. However Management Controller
> Services (the ones available and managed from the Controller Settings) don’t
> have groups.-
> With https://issues.apache.org/jira/browse/NIFI-11556 when verifying if we
> can update controller service referencing components we check if the Process
> Group of the Controller Service allows scheduling of components individually.
> However this part of the change didn't take into account that Management
> Controller Services don't belong to any Process Group and a
> NullPointerException is thrown when we try to disable one:
> {code:java}
> public class StandardControllerServiceDAO extends ComponentDAO implements
> ControllerServiceDAO {
> ...
> @Override
> public void verifyUpdateReferencingComponents(final String
> controllerServiceId, final ScheduledState scheduledState, final
> ControllerServiceState controllerServiceState) {
> final ControllerServiceNode controllerService =
> locateControllerService(controllerServiceId);
>
> controllerService.getProcessGroup().verifyCanScheduleComponentsIndividually();
> {code}
> which throws NullPointerException (as there is no process group).
> Tagging [~markap14] and [~exceptionfactory] as author and reviewer of
> NIFI-11556
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