*/
    private boolean supportsVintageTests() {
        try {
            Class.forName("org.junit.vintage.engine.VintageTestEngine", false, junitClassLoader);
            Class.forName("org.junit.runner.Request", false, junitClassLoader);
            return true;
        } catch (ClassNotFoundException e) {
            return false;
        }
    }

    private boolean isInnerClass(Class<?> klass) {

    private void reportStartedUnlessAlreadyStarted(TestIdentifier testIdentifier) {
        boolean wasNotAlreadyStarted = createDescriptorIfAbsent(testIdentifier);
        // guard against edge cases (e.g. JUnit 4 classes with custom runners that report the class as ignored after reporting it as started)
        if (wasNotAlreadyStarted) {
            TestDescriptorInternal descriptor = descriptorsByUniqueId.get(testIdentifier.getUniqueId());