How to pass java code a parameter from maven for testing

Question

I need to pass on following values …

exeEvironment (Test environment) , testGroup (Group in testNG)

from Command-Line ->

Answer 1

building on the accepted answer

if maven surefire and the are declared in a maven profile, they are not available and will return null unless the profile is also invoked.

Command Line argument

mvn clean test -PmyTestProfile -Denv.USER=UAT -Dgroups=Sniff 

pom.xml

    
        myTestProfile
        
            false
        

        
            
                
                    org.apache.maven.plugins
                    maven-surefire-plugin
                    ${surefire.version}
                    
                        
                            ${env.USER}