import org.gradle.api.internal.tasks.testing.detection.AbstractTestFrameworkDetector;
import org.gradle.api.internal.tasks.testing.detection.ClassFileExtractionManager;

class TestNGDetector extends AbstractTestFrameworkDetector<TestNGTestClassDetector> {
    TestNGDetector(ClassFileExtractionManager classFileExtractionManager) {
        super(classFileExtractionManager);
    }

    @Override

import java.util.List;
import java.util.concurrent.Callable;

@UsedByScanPlugin("test-retry")
public class TestNGTestFramework implements TestFramework {
    private final TestNGOptions options;
    private TestNGDetector detector;
    private final DefaultTestFilter filter;
    private final ObjectFactory objects;
    private final Factory<File> testTaskTemporaryDir;
    private final DirectoryReport htmlReport;

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