HI,
Using suite XML Files and surefire plugin :
This allows flexible configuration of the tests to be run. These files are created in the normal way, and then added to the Surefire Plugin configuration
POM:
<plugins>
[...]
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.21.0</version>
<configuration>
<suiteXmlFiles>
<suiteXmlFile>testng.xml</suiteXmlFile>
</suiteXmlFiles>
</configuration>
</plugin>
[...]
</plugins>
in cmd : mvn clean test -DsuiteFile=testng.xml