import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

class TestNGListenerAdapterFactory {
    private final ClassLoader classLoader;

    TestNGListenerAdapterFactory(ClassLoader classLoader) {
        this.classLoader = classLoader;
    }

    public ITestListener createAdapter(ITestListener listener) {

import org.testng.ITestContext
import org.testng.ITestListener
import org.testng.ITestResult
import spock.lang.Specification

class TestNGListenerAdapterFactorySpec extends Specification {
    TestNGListenerAdapterFactory factory = new TestNGListenerAdapterFactory(getClass().classLoader)
    MyListener listener = Mock()
    MyListener2 otherListener = Mock()

    def "adapts to IConfigurationListener interface if available on class path"() {

/**
 * Listener that reacts if a test class is started and finished.
 * This listener is invoked if the executing TestNG version is >= 6.9.10 which introduces the {@code org.testng.IClassListener}.
 *
 * @see TestNGListenerAdapterFactory
 */
public interface TestNGClassListener {

    void onBeforeClass(ITestClass testClass);

    /**
     * for compatibility reasons with testng 6.9.10
     */

 * org.testng.IConfigurationListener2 (from TestNG >= 6.2). Became
 * necessary because TestNG 6.2 changed the package name of the former
 * interface from org.testng.internal to org.testng.
 *
 * @see TestNGListenerAdapterFactory
 */
public interface TestNGConfigurationListener {
    /**
     * Invoked whenever a configuration method succeeded.
     */
    void onConfigurationSuccess(ITestResult itr);

    /**

            }
        }
    }

    private ITestListener adaptListener(ITestListener listener) {
        TestNGListenerAdapterFactory factory = new TestNGListenerAdapterFactory(applicationClassLoader);
        return factory.createAdapter(listener);
    }

    private static class SelectedTestsFilter implements IMethodInterceptor {

Class <org.gradle.api.internal.tasks.testing.testng.TestNGListenerAdapterFactory$AdaptedListener> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (TestNGListenerAdapterFactory.java:0)
Class <org.gradle.api.internal.tasks.testing.testng.TestNGListenerAdapterFactory> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (TestNGListenerAdapterFactory.java:0)