return getTraverser(url, null, rootDir);
    }

    /**
     * Returns an array of {@link Traverser} instances that handle collections of classes or resources based on the specified root package.
     *
     * @param rootPackage
     *            The root package.
     * @return An array of {@link Traverser} instances that handle collections of resources based on the specified root package.
     */

   */
  public static DiscreteDomain<Integer> integers() {
    return IntegerDomain.INSTANCE;
  }

  private static final class IntegerDomain extends DiscreteDomain<Integer> implements Serializable {
    private static final IntegerDomain INSTANCE = new IntegerDomain();

    IntegerDomain() {
      super(true);
    }

    @Override

 * returned.
 *
 * <p>All default instances returned by {@link #get} are generics-safe. Clients won't get type
 * errors for using {@code get(Comparator.class)} as a {@code Comparator<Foo>}, for example.
 * Immutable empty instances are returned for collection types; {@code ""} for string; {@code 0} for
 * number types; reasonable default instance for other stateless types. For mutable types, a fresh

  }

  /**
   * Creates a new ArrayBasedUnicodeEscaper instance with the given replacement map and specified
   * safe range. If {@code safeMax < safeMin} then no code points are considered safe. This
   * initializer is useful when explicit instances of ArrayBasedEscaperMap are used to allow the
   * sharing of large replacement mappings.
   *

 *   }
 * }, executor);
 * }
 *
 * <h3>How to get an instance</h3>
 *
 * <p>We encourage you to return {@code ListenableFuture} from your methods so that your users can
 * take advantage of the {@linkplain Futures utilities built atop the class}. The way that you will
 * create {@code ListenableFuture} instances depends on how you currently create {@code Future}
 * instances:
 *
 * <ul>

import org.codelibs.fess.dict.DictionaryItem;

import jakarta.annotation.PostConstruct;

/**
 * A dictionary creator for stemmer override files.
 * This class is responsible for creating {@link StemmerOverrideFile} instances
 * from files that match the pattern "stemmer_override.*\\.txt".
 */
public class StemmerOverrideCreator extends DictionaryCreator {
    private static final Logger logger = LogManager.getLogger(StemmerOverrideCreator.class);

import org.codelibs.fess.dict.DictionaryItem;

import jakarta.annotation.PostConstruct;

/**
 * A dictionary creator for synonym files.
 * This class is responsible for creating {@link SynonymFile} instances
 * from files that match the pattern "synonym.*\\.txt".
 */
public class SynonymCreator extends DictionaryCreator {
    private static final Logger logger = LogManager.getLogger(SynonymCreator.class);

    /**

import org.apache.maven.model.validation.ModelValidator;

/**
 * A factory to create model builder instances when no dependency injection is available. Note: This class is
 * only meant as a utility for developers that want to employ the model builder outside of the Maven build system, Maven
 * plugins should always acquire model builder instances via dependency injection. Developers might want to subclass

    this(ArrayBasedEscaperMap.create(replacementMap), safeMin, safeMax);
  }

  /**
   * Creates a new ArrayBasedCharEscaper instance with the given replacement map and specified safe
   * range. If {@code safeMax < safeMin} then no characters are considered safe. This initializer is
   * useful when explicit instances of ArrayBasedEscaperMap are used to allow the sharing of large
   * replacement mappings.
   *

 * it is an immutable <i>supplier</i> of {@code Reader} instances.
 *
 * <p>{@code CharSource} provides two kinds of methods:
 *
 * <ul>
 *   <li><b>Methods that return a reader:</b> These methods should return a <i>new</i>, independent
 *       instance each time they are called. The caller is responsible for ensuring that the
 *       returned reader is closed.