How to use Version class of junit.runner package

//oversimplified for demontration purposes
public class TestParameters {
    private String testName = null;
    private String testDescription = null;

    public TestParameters(String name,
                          String description) {
        this.testName = name;
        this.testDescription = description;
    }

    public String getTestName() {
        return testName;
    }
    public String getTestDescription() {
        return testDescription;
    }
}

public class SampleTest implements ITest {
    // Has to be set to prevent NullPointerException from reporters
    protected String mTestCaseName = "";

    @DataProvider(name="BasicDataProvider")
    public Object[][] getTestData() {
        Object[][] data = new Object[][] {
                { new TestParameters("TestCase1", "Sample test 1")},
                { new TestParameters("TestCase2", "Sample test 2")},
                { new TestParameters("TestCase3", "Sample test 3")},
                { new TestParameters("TestCase4", "Sample test 4")},
                { new TestParameters("TestCase5", "Sample test 5") }
        };
        return data;
    }

    @BeforeMethod(alwaysRun = true)
    public void testData(Method method, Object[] testData) {
        String testCase = "";
        if (testData != null && testData.length > 0) {
            TestParameters testParams = null;
            //Check if test method has actually received required parameters
            for (Object testParameter : testData) {
                if (testParameter instanceof TestParameters) {
                    testParams = (TestParameters)testParameter;
                    break;
                }
            }
            if (testParams != null) {
                testCase = testParams.getTestName();
            }
        }
        this.mTestCaseName = String.format("%s(%s)", method.getName(), testCase);
    }

    @Override
    public String getTestName() {
        return this.mTestCaseName;
    }

    @Test(dataProvider="BasicDataProvider")
    public void testSample1(TestParameters testParams){
        //test code here
    }

    @Test(dataProvider="BasicDataProvider")
    public void testSample2(TestParameters testParams){
        //test code here
    }

    @Test
    public void testSample3(){
        //test code here
    }
}

public String getTestName()
{
    String name = testName;
    StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();//.toString();
    if(calledFrom(stackTrace, "XMLSuiteResultWriter"))
    {
        name = testNames.size()>0?testNames.get(xmlNameIndex<testNames.size()?xmlNameIndex:0):"undefined";
        xmlNameIndex++;
        if(xmlNameIndex>=testNames.size())
            xmlNameIndex = 0;
    }
    else if(calledFrom(stackTrace, "EmailableReporter"))
    {
        name = testNames.size()>0?testNames.get(emailNameIndex<testNames.size()?emailNameIndex:0):"undefined";
        emailNameIndex++;
        if(emailNameIndex>=testNames.size())
            emailNameIndex = 0;
    }
    if(calledFrom(stackTrace, "TestHTMLReporter"))
    {
        if(testNames.size()<0)
        {
            name = "undefined";
        }
        else
        {
            if(htmlNameIndex < testNamesFailed.size())
            {
                name = testNamesFailed.get(htmlNameIndex);
            }
            else
            {
                int htmlPassedIndex = htmlNameIndex - testNamesFailed.size();
                if(htmlPassedIndex < testNamesPassed.size())
                {
                    name = testNamesPassed.get(htmlPassedIndex);
                }
                else
                {
                    name = "undefined";
                }
            }
        }
        htmlNameIndex++;
        if(htmlNameIndex>=testNames.size())
            htmlNameIndex = 0;
    }
    return name;
}

private boolean calledFrom(StackTraceElement[] stackTrace, String checkForMethod)
{
    boolean calledFrom = false;
    for(StackTraceElement element : stackTrace)
    {
        String stack = element.toString();
        if(stack.contains(checkForMethod))
            calledFrom = true;
    }
    return calledFrom;
}

public class NinjaTest {
...
...
@AfterMethod (alwaysRun = true)
public void afterMethod(ITestResult result, Method method) {
    try {
        //I have XML test suites organized in directories. 
        String xmlFile = result.getTestContext().getCurrentXmlTest().getSuite().getFileName();
        String suiteName = xmlFile.substring(xmlFile.lastIndexOf("\\") + 1, xmlFile.lastIndexOf(".xml"));
        String pathToFile = xmlFile.substring(0, xmlFile.lastIndexOf("\\") );
        String directory = pathToFile.substring(pathToFile.lastIndexOf("\\") + 1);
        String testMethodName = String.format("%s/%s - %s", directory, suiteName, method.getName());

        //Total hack to change display name in HTML report  ＼(^o^)／ 
        Field methodName = org.testng.internal.BaseTestMethod.class.getDeclaredField("m_methodName");
        methodName.setAccessible(true);
        methodName.set(result.getMethod(), testMethodName);
    } catch (Exception e) {
        // Eh....  ¯\_(ツ)_/¯
        e.printStackTrace();
    }
}
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