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https://issues.apache.org/jira/browse/OOZIE-1600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13810549#comment-13810549
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Bowen Zhang commented on OOZIE-1600:
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don't really know what happened here.
> map-reduce actions without configuration section in workflow.xml throws
> "IllegalArgumentException: element cannot be null"
> --------------------------------------------------------------------------------------------------------------------------
>
> Key: OOZIE-1600
> URL: https://issues.apache.org/jira/browse/OOZIE-1600
> Project: Oozie
> Issue Type: Bug
> Reporter: Bowen Zhang
> Assignee: Bowen Zhang
> Attachments: oozie-1600.patch, oozie-1600.patch
>
>
> In evaluateConfigurationProperty() method of MapReduceActionExecutor.java, we
> cannot assume "configuration" is always there. If the element is null, we
> need to return defaultValue.
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