import java.util.concurrent.ExecutionException;

public class CachingToolingImplementationLoader implements ToolingImplementationLoader, Closeable {
    private final ToolingImplementationLoader loader;
    private final Cache<ClassPath, ConsumerConnection> connections = CacheBuilder.newBuilder()
        .maximumSize(15)
        .build();

    public CachingToolingImplementationLoader(ToolingImplementationLoader loader) {
        this.loader = loader;

import org.gradle.internal.time.Clock;
import org.gradle.internal.time.Time;
import org.gradle.tooling.CancellationTokenSource;
import org.gradle.tooling.internal.consumer.loader.CachingToolingImplementationLoader;
import org.gradle.tooling.internal.consumer.loader.DefaultToolingImplementationLoader;
import org.gradle.tooling.internal.consumer.loader.SynchronizedToolingImplementationLoader;

    final ConnectionParameters params = DefaultConnectionParameters.builder().build()
    final BuildCancellationToken cancellationToken = Mock()
    final CachingToolingImplementationLoader loader = new CachingToolingImplementationLoader(target)

    def "delegates to target loader to create implementation"() {
        def distribution = Mock(Distribution)
        def connection = Mock(ConsumerConnection)

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