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https://issues.apache.org/jira/browse/TOMEE-2176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16716734#comment-16716734
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ASF GitHub Bot commented on TOMEE-2176:
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GitHub user brunobat opened a pull request:
https://github.com/apache/tomee/pull/268
[Work in Progress] TOMEE-2176 - Arquillian test cannot be run in parallel
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/brunobat/tomee fix-parallel-test-execution
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/tomee/pull/268.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #268
----
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> Arquillian test cannot be run in parallel
> -----------------------------------------
>
> Key: TOMEE-2176
> URL: https://issues.apache.org/jira/browse/TOMEE-2176
> Project: TomEE
> Issue Type: Improvement
> Components: TomEE Arquillian Adapters
> Affects Versions: 7.0.3
> Reporter: Thorsten Meinl
> Assignee: Bruno Baptista
> Priority: Major
> Labels: pull-request-available
>
> In order to speed up tests, I wanted to run them in parallel using Maven
> Surefire's parallel execution capabilities. But even when running every test
> class in its own forked VM tests were failing randomly, mostly due to missing
> files in the temporary container directory. The reason is that all temporary
> containers will use the same directory, which is
> {{dir = System.getProperty("java.io.tmpdir") + "/arquillian-apache-tomee"}}
> and/or
> {{appWorkingDir = System.getProperty("java.io.tmpdir") +
> "/arquillian-tomee-app-working-dir}}
> (see {{org.apache.openejb.arquillian.common.TomEEConfiguration}}).
> This means different processes running TomEE via Arquillian will interfere
> with each other, even completely independent process and even from different
> users.
> As a solution the above-mention directories must be created such that they
> are unique for the process, e.g. by using
> {{java.nio.Files.createTempDirectory}}.
>
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