private @Nullable ThreadFactory backingThreadFactory = null;

  /**
   * Creates a new {@link ThreadFactory} builder.
   *
   * <p><b>Java 21+ users:</b> use {@link Thread#ofPlatform()} instead, translating other calls on
   * the builder as documented on each method (except for the rarely used {@link #setThreadFactory},
   * which does not have an equivalent).
   */
  public ThreadFactoryBuilder() {}

  /**

            childUrlRuleMap.put("//FRAME", "src");
            childUrlRuleMap.put("//IFRAME", "src");
            childUrlRuleMap.put("//IMG", "src");
            childUrlRuleMap.put("//LINK", "href");
            childUrlRuleMap.put("//SCRIPT", "src");
            xpathTransformer.setChildUrlRuleMap(childUrlRuleMap);
            Map<String, String> fieldRuleMap = newLinkedHashMap();

     * <p>
     * The list of {@link CoreExtensions} if present, is in precedence order.
     *
     * @return an {@link Optional} containing the {@link CoreExtensions}, or empty if not configured
     */
    @Nonnull
    Optional<List<CoreExtensions>> coreExtensions();

    /**
     * Returns detected CI system, if any.
     *

2) Do not add a trailing period at the end of headings.

### Quotes

1) Prefer Japanese corner brackets 「」 in normal prose when quoting a term.
2) Do not change quotes inside inline code, code blocks, URLs, or file paths.

### Ellipsis

1) Keep ellipsis style consistent with existing Japanese docs (commonly `...`).
2) Never change `...` in code, URLs, or CLI examples.

2) Do not add trailing punctuation to headings.

### Quotes

1) Keep quote style consistent with the existing Korean docs.
2) Never change quotes inside inline code, code blocks, URLs, or file paths.

### Ellipsis

1) Keep ellipsis style consistent with existing Korean docs (often `...`).
2) Never change `...` in code, URLs, or CLI examples.

 * <p>
 * A type can be marked {@link Consumer} or {@link Provider} but not both. A type is assumed to be
 * {@link Consumer} if it is not marked either {@link Consumer} or {@link Provider}.
 * <p>
 * A package can be marked {@link Consumer}. In this case, all types in the package are considered
 * to be a provider type regardless of whether they are marked {@link Consumer} or {@link Provider}.
 *
 * @see Provider
 * @since 4.0.0

/** Static utility method for unchecked throwing of any {@link Throwable}. */
@GwtCompatible
final class SneakyThrows<T extends Throwable> {
  /**
   * Throws {@code t} as if it were an unchecked {@link Throwable}.
   *
   * <p>This method is useful primarily when we make a reflective call to a method with no {@code
   * throws} clause: Java forces us to handle an arbitrary {@link Throwable} from that method,

/**
 * @since 4.0.0
 */
@Experimental
public interface ProjectBuilder extends Service {

    /**
     * Creates a {@link org.apache.maven.api.Project} from a POM file.
     *
     * @param request {@link ProjectBuilderRequest}
     * @return the {@link ProjectBuilderResult} containing the built project and possible errors
     * @throws ProjectBuilderException if the project cannot be created

 * (method {@link #add}) are contended across threads, the set of variables may grow dynamically to
 * reduce contention. Method {@link #sum} (or, equivalently, {@link #longValue}) returns the current
 * total combined across the variables maintaining the sum.
 *
 * <p>This class is usually preferable to {@link AtomicLong} when multiple threads update a common

import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.jspecify.annotations.Nullable;

/**
 * Factory and utility methods for {@link Executor}, {@link ExecutorService}, and {@link
 * ThreadFactory}.
 *
 * @author Eric Fellheimer
 * @author Kyle Littlefield
 * @author Justin Mahoney
 * @since 3.0
 */
@GwtCompatible
public final class MoreExecutors {