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https://issues.apache.org/jira/browse/TINKERPOP-1675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16024754#comment-16024754
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ASF GitHub Bot commented on TINKERPOP-1675:
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Github user asfgit closed the pull request at:
https://github.com/apache/tinkerpop/pull/609
> RemoteStep#processNextStart() throws CompletionException instead of
> underlying exception
> ----------------------------------------------------------------------------------------
>
> Key: TINKERPOP-1675
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1675
> Project: TinkerPop
> Issue Type: Bug
> Components: process
> Affects Versions: 3.2.4
> Reporter: Andy Tolbert
>
> There is a slight behavior change in TinkerPop 3.2.4 as it pertains to an
> exception thrown when processing a traversal on a remote traversal source.
> In 3.2.3, if an unchecked exception is thrown, it is propagated directly to
> the user.
> However, in 3.2.4, since RemoteStep#processNextStart() now calls
> RemoteStep#promise() and joins on the returning futures result, if the future
> fails a {{CompletionException}} is thrown wrapping the cause, instead of the
> cause itself.
> For consistency, if that exception is an unchecked exception, it should be
> thrown directly, otherwise it should be wrapped in an
> {{IllegalStateException}} as it did before.
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