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From "Matthieu Baechler (JIRA)" <server-...@james.apache.org>
Subject [jira] [Commented] (JAMES-2196) Fix CompletableFutureUtilTest
Date Fri, 20 Oct 2017 08:21:00 GMT

    [ https://issues.apache.org/jira/browse/JAMES-2196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16212343#comment-16212343
] 

Matthieu Baechler commented on JAMES-2196:
------------------------------------------

The right fix is probably to implement CompletableFutureUtil.allOf in a way that doesn't blow
the stack.

> Fix CompletableFutureUtilTest
> -----------------------------
>
>                 Key: JAMES-2196
>                 URL: https://issues.apache.org/jira/browse/JAMES-2196
>             Project: James Server
>          Issue Type: Bug
>            Reporter: Luc DUZAN
>
> Some contributors get some error when running CompletableFutureUtilTest. For example:
> ```
> INFO] Running org.apache.james.util.CompletableFutureUtilTest
> [ERROR] Tests run: 25, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 45.033 s <<<
FAILURE! - in org.apache.james.util.CompletableFutureUtilTest
> [ERROR] allOfShouldWorkOnVeryLargeStream(org.apache.james.util.CompletableFutureUtilTest)
Time elapsed: 44.637 s <<< ERROR!
> java.util.concurrent.CompletionException: java.lang.StackOverflowError
> at org.apache.james.util.CompletableFutureUtilTest.allOfShouldWorkOnVeryLargeStream(CompletableFutureUtilTest.java:228)
> Caused by: java.lang.StackOverflowError
> ```
> I guess it's du to the fact that the stack maximum size can vary depending on the platform
or that if you have a fast CPU or not you stack size grow differently.
> Anyway we should make those test less aggressive so it work on everybody computer. 



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