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https://issues.apache.org/jira/browse/HBASE-12257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14171508#comment-14171508
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Enis Soztutar commented on HBASE-12257:
---------------------------------------
+1.
> TestAssignmentManager unsynchronized access to regionPlans
> ----------------------------------------------------------
>
> Key: HBASE-12257
> URL: https://issues.apache.org/jira/browse/HBASE-12257
> Project: HBase
> Issue Type: Bug
> Components: Region Assignment
> Affects Versions: 0.98.7, 0.99.1
> Reporter: Matteo Bertozzi
> Assignee: Matteo Bertozzi
> Priority: Trivial
> Fix For: 2.0.0, 0.98.8, 0.99.2
>
> Attachments: HBASE-11257-98-v0.patch
>
>
> There is some code in TestMasterFailover that access regionPlans without
> synchronized
> {code}
> Stack Trace:
> java.lang.NullPointerException
> at java.util.TreeMap.rotateLeft(TreeMap.java:2069)
> at java.util.TreeMap.fixAfterInsertion(TreeMap.java:2127)
> at java.util.TreeMap.put(TreeMap.java:574)
> at
> org.apache.hadoop.hbase.master.TestMasterFailover.testMasterFailoverWithMockedRITOnDeadRS(TestMasterFailover.java:596)
> {code}
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