@Provides
        protected Factory<DefaultGradleConnector> createConnectorFactory(final ConnectionFactory connectionFactory, final DistributionFactory distributionFactory) {
            return new Factory<DefaultGradleConnector>() {
                @Override
                public DefaultGradleConnector create() {
                    return new DefaultGradleConnector(connectionFactory, distributionFactory);
                }

    private createConnector() {
        if (isolatedToolingClient != null) {
            return isolatedToolingClient.getFactory(DefaultGradleConnector).create()
        }
        return GradleConnector.newConnector() as DefaultGradleConnector
    }

    private void isolateFromGradleOwnBuild(DefaultGradleConnector connector) {
        // override the `user.dir` property in order to isolate tests from the Gradle directory

        }
    }

    private GradleConnector buildConnector(File gradleUserHome, File projectDir, boolean embedded, GradleProvider gradleProvider) {
        DefaultGradleConnector gradleConnector = (DefaultGradleConnector) GradleConnector.newConnector();
        gradleConnector.useDistributionBaseDir(GradleUserHomeLookup.gradleUserHome());
        gradleProvider.applyTo(gradleConnector);

import org.gradle.internal.deprecation.DeprecationLogger;
import org.gradle.testkit.runner.UnsupportedFeatureException;
import org.gradle.util.GradleVersion;

import static org.gradle.tooling.internal.consumer.DefaultGradleConnector.MINIMUM_SUPPORTED_GRADLE_VERSION;

public class BuildResultOutputFeatureCheck implements FeatureCheck {

    private final GradleVersion targetGradleVersion;
    private final boolean embedded;

import org.gradle.integtests.fixtures.AvailableJavaHomes
import org.gradle.test.fixtures.Flaky
import org.gradle.util.GradleVersion
import org.junit.Assume

import static org.gradle.tooling.internal.consumer.DefaultGradleConnector.MINIMUM_SUPPORTED_GRADLE_VERSION

abstract class ToolingApiClientJdkCompatibilityTest extends AbstractIntegrationSpec {

    def setup() {
        System.out.println("TAPI client is using Java " + clientJdkVersion)

Class <org.gradle.tooling.internal.consumer.DefaultGradleConnector> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (DefaultGradleConnector.java:0)