[jboss-jira] [JBoss JIRA] (WFCORE-1426) NPE in GlobalOperationHandlers.getChildAddresses

[Brian Stansberry (JIRA)]

Brian Stansberry created WFCORE-1426:
----------------------------------------

             Summary: NPE in GlobalOperationHandlers.getChildAddresses
                 Key: WFCORE-1426
                 URL: https://issues.jboss.org/browse/WFCORE-1426
             Project: WildFly Core
          Issue Type: Bug
          Components: Domain Management
    Affects Versions: 2.1.0.CR1
            Reporter: Brian Stansberry
            Assignee: Brian Stansberry
             Fix For: 3.0.0.Alpha1


Second line is a potential NPE if the MRR tree has changed since 'element' was found:

            final ImmutableManagementResourceRegistration childRegistration = registry.getSubModel(PathAddress.pathAddress(element));
            final AliasEntry aliasEntry = childRegistration.getAliasEntry();

Failed here:

http://brontes.lab.eng.brq.redhat.com/viewLog.html?buildId=92710&buildTypeId=WildFlyCore_PullRequest_WildFlyCoreFullIntegration

======= Failed test run #1 ==========
org.jboss.as.test.integration.management.util.MgmtOperationException: Management operation failed.
    at org.jboss.as.test.integration.domain.management.util.DomainTestUtils.executeForResult(DomainTestUtils.java:160)
    at org.jboss.as.test.integration.domain.mixed.DomainHostExcludesTest.readChildrenNames(DomainHostExcludesTest.java:302)
    at org.jboss.as.test.integration.domain.mixed.DomainHostExcludesTest.stopSlave(DomainHostExcludesTest.java:111)
    at org.jboss.as.test.integration.domain.mixed.DomainHostExcludesTest.setup(DomainHostExcludesTest.java:93)
    at org.jboss.as.test.integration.domain.mixed.eap630.DomainHostExcludes630TestCase.beforeClass(DomainHostExcludes630TestCase.java:40)
------- Stdout: -------
...
&amp#27;[0m[Host Controller] &amp#27;[0m&amp#27;[0m22:06:43,569 INFO  [org.jboss.as.domain.controller] (management task-5) WFLYHC0026: Unregistered remote slave host "slave"&amp#27;[0m
[Host Controller] &amp#27;[0m&amp#27;[31m22:06:43,569 ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 3) WFLYCTL0013: Operation ("read-children-names") failed - address: ([]): java.lang.NullPointerException&amp#27;[0m
[Host Controller] &amp#27;[31m    at org.jboss.as.controller.operations.global.GlobalOperationHandlers.getChildAddresses(GlobalOperationHandlers.java:960)&amp#27;[0m
[Host Controller] &amp#27;[31m    at org.jboss.as.controller.operations.global.ReadChildrenNamesHandler.execute(ReadChildrenNamesHandler.java:78)&amp#27;[0m
[Host Controller] &amp#27;[31m    at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:890)&amp#27;[0m
[Host Controller] &amp#27;[31m    at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:659)&amp#27;[0m
[Host Controller] &amp#27;[31m    at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:370)&amp#27;[0m
[Host Controller] &amp#27;[31m    at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1344)&amp#27;[0m
[Host Controller] &amp#27;[31m    at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:392)&amp#27;[0m
[Host Controller] &amp#27;[31m    at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:217)&amp#27;[0m
[Host Controller] &amp#27;
...

The test stops host slave and then starts reading children names of type 'host' to see when 'slave' is gone. The registration disappears in the middle of the getChildAddresses logic resulting in NPE.



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