*/
    public abstract DirectoryProperty getStagingRoot();

    public abstract RegularFileProperty getGeneratedMetaDataFile();

    /**
     * The fully rendered documentation with all of its necessary resources.
     */
    public abstract ConfigurableFileCollection getRenderedDocumentation();

 *   <li>An annotation named just "Suppress" might suggest to users that the test is suppressed
 *       under all environments. We could fight this by fully qualifying the annotation, but the
 *       result will be verbose and attention-grabbing.
 *   <li>We need to be careful about how we suppress {@code suite()} methods in {@code common.io}.

    // it's all encapsulated here so it appears normalized to the POM builder.

    // We are going to take the project packaging and find all plugin in the default lifecycle and create
    // fully populated Plugin objects, including executions with goals and default configuration taken
    // from the plugin.xml inside a plugin.
    //

    /**
     * Sets the configuration to unmarshal into the bean. The configuration should be taken from
     * {@link org.apache.maven.model.ConfigurationContainer#getConfiguration()} or a similar source.
     * Fully equivalent to {@code setConfiguration(configuration, null)}.
     *
     * @param configuration The configuration to unmarshal, may be {@code null}.
     * @return This request for chaining, never {@code null}.
     */

@GwtCompatible
@ElementTypesAreNonnullByDefault
final class Absent<T> extends Optional<T> {
  static final Absent<Object> INSTANCE = new Absent<>();

  @SuppressWarnings("unchecked") // implementation is "fully variant"
  static <T> Optional<T> withType() {
    return (Optional<T>) INSTANCE;
  }

  private Absent() {}

  @Override
  public boolean isPresent() {
    return false;
  }

  @Override

@GwtCompatible
@ElementTypesAreNonnullByDefault
final class Absent<T> extends Optional<T> {
  static final Absent<Object> INSTANCE = new Absent<>();

  @SuppressWarnings("unchecked") // implementation is "fully variant"
  static <T> Optional<T> withType() {
    return (Optional<T>) INSTANCE;
  }

  private Absent() {}

  @Override
  public boolean isPresent() {
    return false;
  }

  @Override

public interface Funnel<T extends @Nullable Object> extends Serializable {

  /**
   * Sends a stream of data from the {@code from} object into the sink {@code into}. There is no
   * requirement that this data be complete enough to fully reconstitute the object later.
   *
   * @since 12.0 (in Guava 11.0, {@code PrimitiveSink} was named {@code Sink})
   */
  void funnel(@ParametricNullness T from, PrimitiveSink into);

 *   <li>An annotation named just "Suppress" might suggest to users that the test is suppressed
 *       under all environments. We could fight this by fully qualifying the annotation, but the
 *       result will be verbose and attention-grabbing.
 *   <li>We need to be careful about how we suppress {@code suite()} methods in {@code common.io}.

import org.gradle.internal.UncheckedException;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 * Resolves partial type names into fully qualified type names.
 */
public class TypeNameResolver {
    private final Set<String> primitiveTypes = new HashSet<String>();
    private final List<String> groovyImplicitImportPackages = new ArrayList<String>();

     */
    void validateRawModel(Model model, ModelBuilderRequest request, ModelProblemCollector problems);

    /**
     * Checks the specified (effective) model for missing or invalid values. The effective model is fully assembled and
     * has undergone inheritance, interpolation and other model operations.
     *
     * @param model The model to validate, must not be {@code null}.