return Collections.emptyList();
        }
        OperatingSystem os = OperatingSystem.current();
        if (os.isUnix()) {
            return Arrays.asList("nice", "-n", "10");
        } else if (os.isWindows()) {
            return Arrays.asList("cmd.exe", "/d", "/c", "start", "\"Gradle build daemon\"", "/b", "/belownormal", "/wait");
        } else {
            return Collections.emptyList();
        }
    }

  abstract static class CachingAsList<E> extends ImmutableSet<E> {
    @LazyInit @RetainedWith @CheckForNull private transient ImmutableList<E> asList;

    @Override
    public ImmutableList<E> asList() {
      ImmutableList<E> result = asList;
      if (result == null) {
        return asList = createAsList();
      } else {
        return result;
      }
    }

    ImmutableList<E> createAsList() {

        stimuli[level] = stimulus;
        recurse(level + 1);
      }
    }
  }

  private void compareResultsForThisListOfStimuli() {
    int removes = Collections.frequency(Arrays.asList(stimuli), remove);
    if ((!features.contains(IteratorFeature.SUPPORTS_REMOVE) && removes > 1)
        || (stimuli.length >= 5 && removes > 2)) {

        if (!getDistribution().isSupportsSpacesInGradleAndJavaOpts()) {
            Map<String, String> environmentVars = buildInvocation().environmentVars;
            for (String envVarName : Arrays.asList("JAVA_OPTS", "GRADLE_OPTS")) {
                String envVarValue = environmentVars.get(envVarName);
                if (envVarValue == null) {
                    continue;
                }

import java.lang.reflect.Modifier;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;

import static com.google.common.collect.Iterables.transform;
import static java.util.Arrays.asList;

/**
 * Provides a way to preserve high-fidelity {@link Type} information on generic types.
 *
 * Capture a generic type with an anonymous subclass. For example: <pre>   {@code

    }

    public TestNGOptions includeGroups(String... includeGroups) {
        this.includeGroups.addAll(Arrays.asList(includeGroups));
        return this;
    }

    public TestNGOptions excludeGroups(String... excludeGroups) {
        this.excludeGroups.addAll(Arrays.asList(excludeGroups));
        return this;
    }

    public TestNGOptions useDefaultListeners() {

  @Override
  public abstract UnmodifiableIterator<E> iterator();

  @LazyInit @RetainedWith @CheckForNull private transient ImmutableList<E> asList;

  @Override
  public ImmutableList<E> asList() {
    ImmutableList<E> result = asList;
    return (result == null) ? asList = createAsList() : result;
  }

  ImmutableList<E> createAsList() {
    return ImmutableList.asImmutableList(toArray());
  }

  /*

        this.versionParser = versionParser;
        return this;
    }

    protected ModelProcessor newModelProcessor() {
        return new DefaultModelProcessor(Arrays.asList(newModelParsers()), newModelLocator(), newModelReader());
    }

    protected ModelParser[] newModelParsers() {
        return new ModelParser[0];
    }

    protected ModelLocator newModelLocator() {

   * ordering.
   *
   * @throws NullPointerException if any element is null
   */
  public static <E extends Comparable<? super E>> ImmutableSortedMultiset<E> of(E e1, E e2) {
    return copyOf(Ordering.natural(), Arrays.asList(e1, e2));
  }

  /**
   * Returns an immutable sorted multiset containing the given elements sorted by their natural
   * ordering.
   *
   * @throws NullPointerException if any element is null
   */

     * "expected in provided scope" type of checks.
     */
    static final Collection<String> EXPECTED_PROVIDED_SCOPE_EXCLUSIONS_GA =
            Collections.unmodifiableCollection(Arrays.asList(
                    "org.apache.maven:maven-archiver", "org.apache.maven:maven-jxr", "org.apache.maven:plexus-utils"));

    private static final String ISSUES_KEY = DefaultPluginValidationManager.class.getName() + ".issues";