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https://issues.apache.org/jira/browse/SPARK-17882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15567423#comment-15567423
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Apache Spark commented on SPARK-17882:
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User 'jrshust' has created a pull request for this issue:
https://github.com/apache/spark/pull/15446
> RBackendHandler swallowing errors
> ---------------------------------
>
> Key: SPARK-17882
> URL: https://issues.apache.org/jira/browse/SPARK-17882
> Project: Spark
> Issue Type: Bug
> Components: SparkR
> Affects Versions: 2.0.1
> Reporter: James Shuster
> Priority: Minor
>
> RBackendHandler is swallowing general exceptions in handleMethodCall which
> makes it impossible to debug certain issues that happen when doing an
> invokeJava call.
> In my case this was the following error
> java.lang.IllegalAccessException: Class
> org.apache.spark.api.r.RBackendHandler can not access a member of class with
> modifiers "public final"
> The getCause message that is written back was basically blank.
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