* </ul>
 *
 * <p>These methods are kept for convenience and backward compatibility.
 * For more advanced operations, consider using ExtendedPomEditor or DomTrip directly.
 *
 * <h2>Using DomTrip Directly</h2>
 * <p>Many operations can be performed directly using DomTrip's Element API:
 * <pre>{@code
 * // Find child element
 * Element child = parent.child("version").orElse(null);
 *
 * // Check if child exists

	register["LO"] = mips.REG_LO
	// Pseudo-registers.
	register["SB"] = RSB
	register["FP"] = RFP
	register["PC"] = RPC
	// Avoid unintentionally clobbering g using R30.
	delete(register, "R30")
	register["g"] = mips.REG_R30
	// Avoid unintentionally clobbering RSB using R28.
	delete(register, "R28")
	register["RSB"] = mips.REG_R28
	registerPrefix := map[string]bool{
		"F":   true,
		"FCR": true,
		"M":   true,

        this.fragmentOffset = fragmentOffset;
        return this;
    }

    /**
     * Gets the custom pre-tags for highlighting.
     *
     * @return the pre-tags array, or null if using defaults
     */
    public String[] getPreTags() {
        return preTags;
    }

    /**
     * Sets the custom pre-tags for highlighting with fluent interface.
     *

  public static Test suite() {
    TestSuite suite = new TestSuite();
    suite.addTestSuite(MutableClassToInstanceMapTest.class);

    suite.addTest(
        MapTestSuiteBuilder.using(
                new TestClassToInstanceMapGenerator() {
                  // Other tests will verify what real, warning-free usage looks like
                  // but here we have to do some serious fudging

    } catch (NoSuchFieldException impossible) {
      throw new AssertionError(impossible);
    }
  }

  /**
   * Returns an optional enum constant for the given type, using {@link Enum#valueOf}. If the
   * constant does not exist, {@link Optional#absent} is returned. A common use case is for parsing
   * user input or falling back to a default enum constant. For example, {@code

    return new ToStringHelper(self.getClass().getSimpleName());
  }

  /**
   * Creates an instance of {@link ToStringHelper} in the same manner as {@link
   * #toStringHelper(Object)}, but using the simple name of {@code clazz} instead of using an
   * instance's {@link Object#getClass()}.
   *
   * <p>Note that in GWT, class names are often obfuscated.
   *
   * @param clazz the {@link Class} of the instance

  public static Test suite() {
    TestSuite suite = new TestSuite();
    // TODO(lowasser): should we force TreeMultimap to be more thorough about checking nulls?
    suite.addTest(
        SortedSetMultimapTestSuiteBuilder.using(
                new TestStringSetMultimapGenerator() {
                  @Override
                  protected SetMultimap<String, String> create(Entry<String, String>[] entries) {

  public static Test suite() {
    TestSuite suite = new TestSuite();

    suite.addTestSuite(ForwardingCollectionTest.class);
    suite.addTest(
        CollectionTestSuiteBuilder.using(
                new TestStringCollectionGenerator() {
                  @Override
                  protected Collection<String> create(String[] elements) {
                    return new StandardImplForwardingCollection<>(

import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * A {@link Future} that accepts completion listeners. Each listener has an associated executor, and
 * it is invoked using this executor once the future's computation is {@linkplain Future#isDone()
 * complete}. If the computation has already completed when the listener is added, the listener will
 * execute immediately.
 *

 *   <li>{@code remove}: Removes the element</li>
 * </ul>
 *
 * <p>For complex XML structures, combining can also be done based on:</p>
 * <ul>
 *   <li>ID: Using the {@code combine.id} attribute</li>
 *   <li>Keys: Using the {@code combine.keys} attribute with comma-separated key names</li>
 * </ul>
 *
 * @since 4.0.0
 */
public abstract class XmlService {