/**
 * A set of parameters to be injected into a {@link BuildService} implementation.
 *
 * @since 6.1
 */
public interface BuildServiceParameters {
    /**
     * Used for services without parameters.
     *
     * @since 6.1
     */
    final class None implements BuildServiceParameters {
        private None() {
        }
    }

public class ConsumedBuildServiceProvider<T extends BuildService<BuildServiceParameters>> extends BuildServiceProvider<T, BuildServiceParameters> {
    protected final ServiceRegistry internalServices;
    private final String serviceName;
    private final Class<T> serviceType;
    private final BuildIdentifier buildIdentifier;
    private volatile RegisteredBuildServiceProvider<T, BuildServiceParameters> resolvedProvider;

    private final SharedResourceLeaseRegistry leaseRegistry;
    private final IsolationScheme<BuildService<?>, BuildServiceParameters> isolationScheme = new IsolationScheme<>(
        Cast.uncheckedCast(BuildService.class), BuildServiceParameters.class, BuildServiceParameters.None.class);
    private final Instantiator paramsInstantiator;
    private final Instantiator specInstantiator;

package org.gradle.sample.sound;

import org.gradle.api.services.BuildService;
import org.gradle.api.services.BuildServiceParameters;

import java.io.File;

public abstract class SoundService implements BuildService<BuildServiceParameters.None> {
    public void playSoundFile(File path) {
        System.out.println("Playing sound " + path.getName());
    }

 * limitations under the License.
 */

package org.gradle.api.services.internal;

import org.gradle.api.provider.Provider;
import org.gradle.api.services.BuildService;
import org.gradle.api.services.BuildServiceParameters;
import org.gradle.api.services.BuildServiceRegistration;
import org.gradle.api.services.BuildServiceRegistry;
import org.gradle.internal.resources.ResourceLock;
import org.gradle.internal.resources.SharedResource;

 * limitations under the License.
 */

package gradlebuild.performance;

import org.gradle.api.services.BuildService;
import org.gradle.api.services.BuildServiceParameters;

public abstract class PerformanceTestService implements BuildService<BuildServiceParameters.None> {

import org.gradle.api.services.BuildService;
import org.gradle.api.services.BuildServiceParameters;

import java.net.URI;
import java.net.URISyntaxException;

public abstract class WebServer implements BuildService<WebServer.Params>, AutoCloseable {

    // Some parameters for the web server
    interface Params extends BuildServiceParameters {
        Property<Integer> getPort();

        DirectoryProperty getResources();

import org.gradle.api.services.BuildService;
import org.gradle.api.services.BuildServiceParameters;

import java.net.URI;
import java.net.URISyntaxException;

public abstract class WebServer implements BuildService<WebServer.Params>, AutoCloseable {

    // Some parameters for the web server
    interface Params extends BuildServiceParameters {
        Property<Integer> getPort();

        DirectoryProperty getResources();

import org.gradle.api.services.BuildService;
import org.gradle.api.services.BuildServiceParameters;

import java.net.URI;
import java.net.URISyntaxException;

public abstract class WebServer implements BuildService<WebServer.Params>, AutoCloseable {

    // Some parameters for the web server
    interface Params extends BuildServiceParameters {
        Property<Integer> getPort();

        DirectoryProperty getResources();

            import ${OperationCompletionListener.name}
            import ${FinishEvent.name}
            import ${TaskFinishEvent.name}
            import ${BuildServiceParameters.name}

            interface Params extends BuildServiceParameters {
                Property<String> getPrefix()
            }

            abstract class BlockingListener implements OperationCompletionListener, BuildService<Params> {