final transient E element;

  SingletonImmutableSet(E element) {
    this.element = Preconditions.checkNotNull(element);
  }

  @Override
  public int size() {
    return 1;
  }

  @Override
  public boolean contains(@Nullable Object target) {
    return element.equals(target);
  }

  @Override
  public UnmodifiableIterator<E> iterator() {

import java.util.Collection;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;
import org.junit.Ignore;

/**
 * Base class for collection testers.
 *
 * @param <E> the element type of the collection to be tested.
 * @author Kevin Bourrillion
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")

        provider.root.plugin.each { Element plugin ->
            def pluginId = plugin.'@id'
            if (!pluginId) {
                throw new RuntimeException("No id specified for plugin: ${plugin.'@description' ?: 'unknown'}")
            }
            plugin.extends.each { Element e ->
                def targetClass = e.'@targetClass'
                if (!targetClass) {

import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class PropertyTableRenderer {
    public void renderTo(Iterable<PropertyDoc> properties, Element parent) {
        Document document = parent.getOwnerDocument();

        // <thead>
        //   <tr>
        //     <td>Property</td>
        //     <td>Description</td>
        //   </tr>
        // </thead>
        Element thead = document.createElement("thead");

     */
    @Test
    void testGetMessageByDcerpcError_middleElement() {
        String message = DcerpcException.getMessageByDcerpcError(DcerpcError.DCERPC_FAULT_INVALID_TAG);
        assertEquals("DCERPC_FAULT_INVALID_TAG", message, "Should return correct message for middle element.");
    }

    /**
     * Test getMessageByDcerpcError() with a known error code (last element).
     */
    @Test

                for (Plugin element : src) {
                    if (element.isInherited() || !element.getExecutions().isEmpty()) {
                        // NOTE: Enforce recursive merge to trigger merging/inheritance logic for executions
                        Plugin plugin = new Plugin();
                        plugin.setLocation("", element.getLocation(""));
                        plugin.setGroupId(null);

import javax.annotation.processing.SupportedAnnotationTypes;
import javax.annotation.processing.SupportedSourceVersion;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.Element;
import javax.lang.model.element.PackageElement;
import javax.lang.model.element.TypeElement;
import javax.tools.Diagnostic;
import javax.tools.FileObject;
import javax.tools.StandardLocation;

import java.io.BufferedReader;
import java.io.IOException;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class BlockTableRenderer {
    public void renderTo(Iterable<BlockDoc> blocks, Element parent) {
        Document document = parent.getOwnerDocument();

        // <thead>
        //   <tr>
        //     <td>Block</td>
        //     <td>Description</td>
        //   </tr>
        // </thead>
        Element thead = document.createElement("thead");

            List<Exclusion> tgt = target.getExclusions();
            if (tgt.isEmpty()) {
                List<Exclusion> src = source.getExclusions();

                for (Exclusion element : src) {
                    Exclusion clone = element.clone();
                    target.addExclusion(clone);
                }
            }
        }
    }

     * If {@code element} is not {@code null}, child configuration element with the specified name will
     * be unmarshalled.
     *
     * @param configuration The configuration to unmarshal, may be {@code null}.
     * @param element Configuration element name to unmarshal or {@code null} to unmarshal entire configuration.