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https://issues.apache.org/jira/browse/IGNITE-9721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16640180#comment-16640180
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Ignite TC Bot commented on IGNITE-9721:
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{panel:title=No blockers
found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel}
[TeamCity Run
All|http://ci.ignite.apache.org/viewLog.html?buildId=2012076&buildTypeId=IgniteTests24Java8_RunAll]
> NPE in IgniteAuthenticationProcessor$RefreshUsersStorageWorker.body
> -------------------------------------------------------------------
>
> Key: IGNITE-9721
> URL: https://issues.apache.org/jira/browse/IGNITE-9721
> Project: Ignite
> Issue Type: Bug
> Affects Versions: 2.6
> Reporter: Oleg Ignatenko
> Assignee: Oleg Ignatenko
> Priority: Major
> Labels: MakeTeamcityGreenAgain
> Fix For: 2.7
>
>
> Tests at Teamcity sometimes fail with NPE in
> {{IgniteAuthenticationProcessor}}.
> Example of failure (in test
> {{AuthenticationProcessorNodeRestartTest.test1kUsersNodeRestartServer}}) is
> [here|https://ci.ignite.apache.org/viewLog.html?buildId=1945459&tab=buildResultsDiv&buildTypeId=IgniteTests24Java8_Cache7],
> and stacktrace looks as follows:
> {noformat}[2018-09-26
> 07:06:36,732][ERROR][auth-#6589%authentication.AuthenticationProcessorNodeRestartTest0%][IgniteAuthenticationProcessor]
> Runtime error caught during grid runnable execution: GridWorker
> [name=refresh-store,
> igniteInstanceName=authentication.AuthenticationProcessorNodeRestartTest0,
> finished=false, heartbeatTs=1537945595104, hashCode=733597684,
> interrupted=true,
> runner=auth-#6589%authentication.AuthenticationProcessorNodeRestartTest0%]
> java.lang.NullPointerException
> at
> org.apache.ignite.internal.processors.authentication.IgniteAuthenticationProcessor$RefreshUsersStorageWorker.body(IgniteAuthenticationProcessor.java:1346)
> at
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748){noformat}
> This might be either coding error (missing null check) or data race.
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