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https://issues.apache.org/jira/browse/IGNITE-11615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16799656#comment-16799656
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Alexey Goncharuk commented on IGNITE-11615:
-------------------------------------------
It is safely to ignore the {{null}} field for preloader because by the time the
NPE happens exchange worker is already stopped and preloader will not be
created.
> IgniteBaselineAffinityTopologyActivationTest sometimes fails due to NPE on
> node stop
> ------------------------------------------------------------------------------------
>
> Key: IGNITE-11615
> URL: https://issues.apache.org/jira/browse/IGNITE-11615
> Project: Ignite
> Issue Type: Test
> Reporter: Alexey Goncharuk
> Assignee: Alexey Goncharuk
> Priority: Major
> Fix For: 2.8
>
>
> I observe the following NPE in the test:
> {code}
> [13:24:30]W: [org.apache.ignite:ignite-core]
> java.lang.NullPointerException
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.internal.processors.cache.CacheGroupContext.onKernalStop(CacheGroupContext.java:742)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.internal.processors.cache.GridCacheProcessor.onKernalStop(GridCacheProcessor.java:1158)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.internal.IgniteKernal.stop0(IgniteKernal.java:2335)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.internal.IgniteKernal.stop(IgniteKernal.java:2283)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.stop0(IgnitionEx.java:2570)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.stop(IgnitionEx.java:2533)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.internal.IgnitionEx.stop(IgnitionEx.java:330)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.Ignition.stop(Ignition.java:223)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.testframework.junits.GridAbstractTest.stopGrid(GridAbstractTest.java:1187)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.testframework.junits.GridAbstractTest.stopAllGrids(GridAbstractTest.java:1230)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.internal.processors.cache.persistence.IgniteBaselineAffinityTopologyActivationTest.afterTest(IgniteBaselineAffinityTopologyActivationTest.java:126)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.testframework.junits.GridAbstractTest.tearDown(GridAbstractTest.java:1804)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.testframework.junits.JUnit3TestLegacySupport.runTestCase(JUnit3TestLegacySupport.java:70)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.testframework.junits.GridAbstractTest$2.evaluate(GridAbstractTest.java:185)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.junit.rules.RunRules.evaluate(RunRules.java:20)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.testframework.junits.GridAbstractTest.evaluateInsideFixture(GridAbstractTest.java:2579)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.testframework.junits.GridAbstractTest.access$500(GridAbstractTest.java:152)
> [13:24:30]W: [org.apache.ignite:ignite-core] at
> org.apache.ignite.testframework.junits.GridAbstractTest$BeforeFirstAndAfterLastTestRule$1.evaluate(GridAbstractTest.java:2559)
> {code}
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