public void run(final IHookCallBack icb, ITestResult testResult) {
   // Preferably initialized in a @Configuration method
   mySubject = authenticateWithJAAs();

   Subject.doAs(mySubject, new PrivilegedExceptionAction() {
     public Object run() {
       icb.callback(testResult);
     }
   };
 }

@Listeners({SuiteListener.class})
public class InvokedMethodListenerExample {
    @BeforeSuite
    public void beforeSuite() {
        System.out.println("before suite");
    }
    @Test
    public void t1() {
        System.out.println("t1 test method");
    }
            
    @AfterSuite
    public void afterSuite() {
        System.out.println("after suite");
    } 
}

?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite verbose="0" name="listeners-test">
    <listeners>
        <listener class-name="listeners.ProgressTracker" />
        <listener class-name="listeners.SuitListener" />
        <listener class-name="listeners.RetryListener" />
    </listeners>
    <test name="listeners.testng">
    <packages>
        <package name="listeners" />
    </packages>
   </test>
</suite>

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.17</version>
    <configuration>
        <suiteXmlFiles>
            <suiteXmlFile>TestNG_${env}.xml</suiteXmlFile>
        </suiteXmlFiles>
        <properties>
            <property>
                <name>listener</name>
                <value>listeners.SuitListener, listeners.RetryListener</value>
            </property>
        </properties>
    </configuration>
</plugin>