* java.util.Collections#emptySet}
   */
  NONE;

  private final Set<Feature<? super Collection>> implied;

  CollectionFeature(Feature<? super Collection>... implied) {
    this.implied = copyToSet(implied);
  }

  @Override
  public Set<Feature<? super Collection>> getImpliedFeatures() {
    return implied;
  }

  @Retention(RetentionPolicy.RUNTIME)

  static <E extends Enum<E>> ImmutableSet<E> asImmutable(EnumSet<E> set) {
    switch (set.size()) {
      case 0:
        return ImmutableSet.of();
      case 1:
        return ImmutableSet.of(getOnlyElement(set));
      default:
        return new ImmutableEnumSet<>(set);
    }
  }

  /*
   * Notes on EnumSet and <E extends Enum<E>>:
   *

import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import java.util.SortedSet;
import org.jspecify.annotations.Nullable;

/**
 * Interface that extends {@code Table} and whose rows are sorted.
 *
 * <p>The {@link #rowKeySet} method returns a {@link SortedSet} and the {@link #rowMap} method
 * returns a {@link SortedMap}, instead of the {@link Set} and {@link Map} specified by the {@link
 * Table} interface.

import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import java.util.SortedSet;
import org.jspecify.annotations.Nullable;

/**
 * Interface that extends {@code Table} and whose rows are sorted.
 *
 * <p>The {@link #rowKeySet} method returns a {@link SortedSet} and the {@link #rowMap} method
 * returns a {@link SortedMap}, instead of the {@link Set} and {@link Map} specified by the {@link
 * Table} interface.

 */
@Deprecated(since = "4.0.0")
class UrlNormalizingPostProcessor implements InterpolationPostProcessor {

    private static final Set<String> URL_EXPRESSIONS;

    static {
        Set<String> expressions = new HashSet<>();
        expressions.add("project.url");
        expressions.add("project.scm.url");
        expressions.add("project.scm.connection");

	for _, t := range tgts {
		labels := []string{nameL, t.String(), endpointL, t.Endpoint()}
		m.Set(webhookFailedMessages, float64(t.Stats().FailedMessages), labels...)
		m.Set(webhookQueueLength, float64(t.Stats().QueueLength), labels...)
		m.Set(webhookTotalMessages, float64(t.Stats().TotalMessages), labels...)
	}

	return nil

        }
    }

    void addRestTestsToProject(List<String> tests, String sourceSet = "test") {
        // uses the test source set by default, but in practice it would be a custom source set set by another plugin
        File testDir = new File(testProjectDir.root, "src/" + sourceSet + "/resources/rest-api-spec/test")
        testDir.mkdirs();
        tests.each { test ->

        public void setStatusForTest(int status) {
            // Workaround: Use reflection to set private status field
            try {
                java.lang.reflect.Field statusField = ServerMessageBlock2.class.getDeclaredField("status");
                statusField.setAccessible(true);
                statusField.set(this, status);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }

    protected String filename;

    /** List of command-line arguments to pass to the Python script */
    protected List<String> argList = new ArrayList<>();

    /**
     * Sets the Python script filename to execute.
     *
     * @param filename the Python script filename (relative to WEB-INF/env/python/resources)
     * @return this PythonJob instance for method chaining
     */

        AtomicInteger statusCode = new AtomicInteger();

        // ## Act ##
        req.execute(response -> {
            statusCode.set(response.getHttpStatusCode());
            receivedBody.set(response.getContentAsString());
        }, e -> fail("Should not throw exception: " + e.getMessage()));

        // ## Assert ##
        assertEquals(200, statusCode.get());