Romain Manni-Bucau updated TOMEE-2176:
    Priority: Minor  (was: Major)

> Arquillian test cannot be run in parallel
> -----------------------------------------
>                 Key: TOMEE-2176
>                 URL: https://issues.apache.org/jira/browse/TOMEE-2176
>             Project: TomEE
>          Issue Type: Bug
>          Components: TomEE Arquillian Adapters
>    Affects Versions: 7.0.3
>            Reporter: Thorsten Meinl
>            Priority: Minor
> 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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