import java.util.NoSuchElementException;
import java.util.Set;

import static org.gradle.internal.Cast.cast;
import static org.gradle.internal.Cast.castNullable;
import static org.gradle.internal.Cast.uncheckedNonnullCast;

/**
 * This class is only here to maintain binary compatibility with existing plugins.
 * <p>
 * Plugins should prefer external collection frameworks over this class.

                }
                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;
    }

                    // causes dependency resolution or evaluation of the attributes of
                    // the same AttributeContainer
                    if (value != null) {
                        doInsertion(Cast.uncheckedNonnullCast(key), value.get());
                    }
                });
            } finally {
                realizingAttributes = false;
            }
        }
    }

        @Override
        public T get(int index) {
            if (index >= size) {
                throw new IndexOutOfBoundsException("Index: " + index + ", Size: " + size);
            }
            return Cast.uncheckedNonnullCast(asArray[index]);
        }

        @Override
        public boolean contains(Object o) {
            return asSet.contains(o);
        }

        @Override

    }

    private SoftwareComponentInternal component() {
        return publication().getComponent().getOrNull();
    }

    private PublicationInternal<?> publication() {
        return Cast.uncheckedNonnullCast(publication.get().get());
    }

    private List<PublicationInternal<?>> publications() {
        return Cast.uncheckedCast(publications.get().get());
    }

    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