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From Jörg Schaible <joerg.schai...@scalaris.com>
Subject Re: [lang3] Test Fail in Headless Mode (at Least on a Mac)
Date Mon, 22 Nov 2010 09:04:41 GMT
Stefan Bodewig wrote:

> Hi,
> 
> I'm pretty sure lang3 isn't the only project that is affected, it's just
> the first one we've seen it.  "we" ist the Gump project.
> 
> Sander has set up a Mac to run Gump[1] and commons-lang3 is Gump's
> guinea pig for Maven 3.x builds in the workspace we use for developer
> tests and new installations.
> 
> The commons-lang3 builds fail[2] and too me it looks as if this was
> because AWT is not running in headless mode, this in [3] looks
> suspicious:
> 
> java.lang.InternalError: Can't connect to window server - not enough
> permissions.
> 
> As can be seen in [2] MAVEN_OPTS is set up to make mvn run in headless
> mode but it doesn't affect the tests - likely because the tests run in a
> forked VM and the same property must be set in the surefire
> configuration.
> 
> I am suprised the problem doesn't show up in the other CI builds.
> 
> There likely is a way we could set additional properties for the maven
> run (like surefire specific system properties or telling it not to
> fork), but (a) this is beyond my Maven foo and (b) would have to be
> repeated in other environments that have the same problem as well.  Does
> anybody know of a better fix?

a) is:

        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-surefire-plugin</artifactId>
          <configuration>
            <forkMode>once</forkMode><!-- at least once -->
            <systemProperties>
              <property>
                <name>java.awt.headless</name>
                <value>true</value>
              </property>
            </systemProperties>
          </configuration>
        </plugin>

the question is if it should be added to the parent for all commons in 
general or as a setting for lang only?

- Jörg


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