Creating a different profile to run the acceptance tests.
An example given here:
<profiles>
<profile>
<id>test</id>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.17</version>
<configuration>
<argLine>-Xms1024m -Xmx1024m</argLine>
<testFailureIgnore>false</testFailureIgnore>
<skip>false</skip>
<includes>
<include>**/Index.java</include>
</includes>
<argLine>-Dconcordion.output.dir=target/concordion</argLine>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</profile>
</profiles>