}
                if (next == END) {
                    return;
                }
                try {
                    handle(Cast.uncheckedNonnullCast(next));
                } catch (Exception e) {
                    failure.set(e);
                    break;
                }
            }

        return taskContainer.create(addMaps(Cast.uncheckedNonnullCast(options), singletonMap(Task.TASK_NAME, task)));
    }

    public Task task(Map options, Object task) {
        return task(options, task.toString());
    }

    @Override
    public Task task(Map options, String task, Closure configureClosure) {

import java.util.Map;
import java.util.Queue;
import java.util.Set;
import java.util.function.Consumer;

import static org.gradle.internal.Cast.uncheckedCast;
import static org.gradle.internal.Cast.uncheckedNonnullCast;

/**
 * Writes files describing the build operation stream for a build.
 * Can be enabled for any build with `-Dorg.gradle.internal.operations.trace=«path-base»`.
 * <p>
 * Imposes no overhead when not enabled.

     */
    protected void assertCanAdd(T t) {
        assertCanAdd(getNamer().determineName(t));
    }

    @Override
    public Namer<T> getNamer() {
        return Cast.uncheckedNonnullCast(this.namer);
    }

    protected Instantiator getInstantiator() {
        return instantiator;
    }

    public static <T extends Collection<?>> T flattenElements(Object... elements) {
        Collection<T> out = new LinkedList<T>();
        flatten(elements, out, true);
        return Cast.uncheckedNonnullCast(out);
    }

    public static <T extends Collection<?>> T flatten(Collection<?> elements, T addTo, boolean flattenMapsAndArrays) {
        return flatten(elements, addTo, flattenMapsAndArrays, flattenMapsAndArrays);

     */
    @Override
    public <T> AttributeValue<T> findEntry(Attribute<T> key) {
        DefaultImmutableAttributes attributes = hierarchy.get(key);
        return Cast.uncheckedNonnullCast(attributes == null ? MISSING : attributes);
    }

    /**
     * Locates the entry for the attribute with the given name. Returns a 'missing' value when not present.
     */
    @Override

    }

    private <P extends ValueSourceParameters> void configureParameters(@Nullable P parameters, Action<? super ValueSourceSpec<P>> configureAction) {
        DefaultValueSourceSpec<P> valueSourceSpec = Cast.uncheckedNonnullCast(specInstantiator.newInstance(
            DefaultValueSourceSpec.class,
            parameters
        ));
        configureAction.execute(valueSourceSpec);
    }

    @Nullable

        }

        @Override
        public Object create(MutableModelNode modelNode) {
            ImplementationFactory<PUBLIC, Object> implementationFactory = Cast.uncheckedNonnullCast(implementationRegistration.getFactory());
            return implementationFactory.create(publicType, implementationRegistration.getImplementationType(), modelNode.getPath().getName(), modelNode);
        }

            }
            return DynamicInvokeResult.notFound();
        }
    }

    private class MapAdapter extends MetaClassAdapter {
        Map<String, Object> map = Cast.uncheckedNonnullCast(bean);

        @Override
        public boolean hasProperty(String name) {
            return map.containsKey(name) || super.hasProperty(name);
        }

        @Override

    }

    private Closure<?> decorate(String registrationPoint, Closure closure) {
        return getListenerBuildOperationDecorator().decorate(registrationPoint, Cast.<Closure<?>>uncheckedNonnullCast(closure));
    }

    private <T> Action<T> decorate(String registrationPoint, Action<T> action) {
        return getListenerBuildOperationDecorator().decorate(registrationPoint, action);
    }