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https://issues.apache.org/jira/browse/SOLR-13653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hoss Man resolved SOLR-13653.
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Resolution: Information Provided
Assignee: Hoss Man
> java (10 & 11) HashMap bug can trigger AssertionError when using SolrCaches
> ---------------------------------------------------------------------------
>
> Key: SOLR-13653
> URL: https://issues.apache.org/jira/browse/SOLR-13653
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Hoss Man
> Assignee: Hoss Man
> Priority: Major
> Labels: Java10, java11
>
> we've seen some java11 jenkins builds that have failed due to an
> AssertionError being thrown by HashMap.put as used in LRUCache -- in at least
> one case these failures are semi-reproducible. (the occasional "success" is
> likely due to some unpredictibility in thread contention)
> Some cursory investigation suggests that JDK-8205399, first identified in
> java10, and fixed in java12-b26...
> https://bugs.openjdk.java.net/browse/JDK-8205399
> There does not appear to be anything we can do to mitigate this problem in
> Solr.
> It's also not clear to me based on th comments in JDK-8205399 if the
> underlying problem can cause problems for end users running w/assertions
> disabled, or if it just results in sub-optimal performance
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