public Collection<E> getSampleElements(int howMany) {
    SampleElements<E> samples = samples();
    List<E> allSampleElements =
        asList(samples.e0(), samples.e1(), samples.e2(), samples.e3(), samples.e4());
    return new ArrayList<>(allSampleElements.subList(0, howMany));
  }

  @Override
  public CollectionSize getCollectionSize() {
    return collectionSize;
  }

  @Override
  public Iterable<E> order(List<E> insertionOrder) {

  }

  public static class ImmutableBiMapCopyOfGenerator extends TestStringBiMapGenerator {
    @Override
    protected BiMap<String, String> create(Entry<String, String>[] entries) {
      Map<String, String> builder = new LinkedHashMap<>();
      for (Entry<String, String> entry : entries) {
        builder.put(entry.getKey(), entry.getValue());
      }
      return ImmutableBiMap.copyOf(builder);
    }
  }

    /**
     * Method getLifecycles.
     *
     * @return List
     */
    public java.util.List<Lifecycle> getLifecycles() {
        if (this.lifecycles == null) {
            this.lifecycles = new java.util.ArrayList<Lifecycle>();
        }

        return this.lifecycles;
    } // -- java.util.List<Lifecycle> getLifecycles()

    /**
     * Get the modelEncoding field.
     *
     * @return String

import org.apache.maven.project.MavenProject;

/**
 * <p>
 * Encapsulates parameters of MojoExecutionListener callback methods and is meant to provide API evolution path should
 * it become necessary to introduce new parameters in the existing callbacks in the future.
 * </p>
 * <strong>Note:</strong> This class is part of work in progress and can be changed or removed without notice.
 *
 * @see MojoExecutionListener

import org.apache.maven.project.MavenProject;

/**
 * <p>
 * Encapsulates parameters of ProjectExecutionListener callback methods and is meant to provide API evolution path
 * should it become necessary to introduce new parameters in the existing callbacks in the future.
 * </p>
 * <strong>Note:</strong> This class is part of work in progress and can be changed or removed without notice.
 *
 * @see ProjectExecutionListener
 * @since 3.1.2

                    Xpp3Dom executionConfiguration = (Xpp3Dom) execution.getConfiguration();

                    executionConfiguration =
                            Xpp3Dom.mergeXpp3Dom(executionConfiguration, new Xpp3Dom(pluginConfiguration));

                    execution.setConfiguration(executionConfiguration);
                }
            }
        }
    }

    /**
     * Method getExtensions.
     *
     * @return List
     */
    public List<CoreExtension> getExtensions() {
        if (this.extensions == null) {
            this.extensions = new ArrayList<CoreExtension>();
        }

        return this.extensions;
    } // -- List<CoreExtension> getExtensions()

    /**
     * Get the modelEncoding field.
     *
     * @return String
     */

            if (newPrefix != null && !newPrefix.isEmpty()) {
                msg += " Please use ${" + newPrefix + expression.substring(bannedPrefix.length()) + "} instead.";
            }
            problems.add(new ModelProblemCollectorRequest(Severity.WARNING, Version.V20).setMessage(msg));
        }

        return value;
    }

    @Override
    public List getFeedback() {
        return valueSource.getFeedback();
    }

  public static Collection<Object[]> parameters() {
    ElementOrder<?> naturalElementOrder = ElementOrder.sorted(Ordering.natural());

    return Arrays.asList(
        new Object[][] {
          {false, false, ElementOrder.insertion(), ElementOrder.insertion()},
          {true, false, ElementOrder.insertion(), ElementOrder.insertion()},
          {false, false, naturalElementOrder, naturalElementOrder},

  @Override
  @SuppressWarnings("unchecked") // generic arrays make typesafety sad
  public Entry<K, V>[] createArray(int length) {
    return (Entry<K, V>[]) new Entry<?, ?>[length];
  }

  /** Returns the original element list, unchanged. */
  @Override
  public List<Entry<K, V>> order(List<Entry<K, V>> insertionOrder) {
    return insertionOrder;
  }