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https://issues.apache.org/jira/browse/IGNITE-7749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16372566#comment-16372566
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ASF GitHub Bot commented on IGNITE-7749:
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Github user asfgit closed the pull request at:
https://github.com/apache/ignite/pull/3540
> testDiscoCacheReuseOnNodeJoin fails on TC
> -----------------------------------------
>
> Key: IGNITE-7749
> URL: https://issues.apache.org/jira/browse/IGNITE-7749
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Affects Versions: 2.5
> Reporter: Pavel Kovalenko
> Assignee: Alexey Goncharuk
> Priority: Major
> Labels: MakeTeamcityGreenAgain
> Fix For: 2.5
>
>
> {code:java}
> java.lang.ClassCastException:
> org.apache.ignite.internal.util.GridConcurrentHashSet cannot be cast to
> java.lang.String
> at
> org.apache.ignite.spi.discovery.IgniteDiscoveryCacheReuseSelfTest.assertDiscoCacheReuse(IgniteDiscoveryCacheReuseSelfTest.java:93)
> at
> org.apache.ignite.spi.discovery.IgniteDiscoveryCacheReuseSelfTest.testDiscoCacheReuseOnNodeJoin(IgniteDiscoveryCacheReuseSelfTest.java:64)
> {code}
> There are 2 problems in the test.
> 1) We don't wait for final topology version is set on all nodes and start
> checking discovery caches immediately after grids starting. It leads to
> possible NullPointerException while accessing to discovery caches history.
> 2) We don't use explicit assertEquals(String, Object, Object) related to
> comparing Objects, while Java can choose assertEquals(String, String) method
> to compare discovery cache fields which we're getting in runtime using
> reflection.
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