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https://issues.apache.org/jira/browse/SAMOA-71?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16192801#comment-16192801
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ASF GitHub Bot commented on SAMOA-71:
-------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/incubator-samoa/pull/68
> HorizontalAMRulesRegressor fails with ConcurrentModificationException
> ---------------------------------------------------------------------
>
> Key: SAMOA-71
> URL: https://issues.apache.org/jira/browse/SAMOA-71
> Project: SAMOA
> Issue Type: Bug
> Components: SAMOA-API
> Reporter: Maciej Grzenda
> Priority: Minor
>
> When Horizontal Adaptive Model Rules Regressor is used, AMRRuleSetProcessor
> that is used in turn occasionally fails with ConcurrentModificationException:
> Exception in thread "main" java.util.ConcurrentModificationException
> at java.util.LinkedList$ListItr.checkForComodification(Unknown Source)
> at java.util.LinkedList$ListItr.next(Unknown Source)
> at
> org.apache.samoa.learners.classifiers.rules.distributed.AMRRuleSetPro
> cessor.processInstanceEvent(AMRRuleSetProcessor.java:130)
> The reason seems to be ruleSet is not thread-safe, but this can be possibly
> changed.
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