}

    /**
     * Creates and returns a new instance of {@link LinkedHashSet}.
     *
     * @param <E> the element type of {@link LinkedHashSet}
     * @return a new instance of {@link LinkedHashSet}
     * @see LinkedHashSet#LinkedHashSet()
     */
    public static <E> LinkedHashSet<E> newLinkedHashSet() {
        return new LinkedHashSet<>();
    }

    /**

   * syntax</a>.
   *
   * @return a new, empty {@code LinkedHashSet}
   */
  @SuppressWarnings("NonApiType") // acts as a direct substitute for a constructor call
  public static <E extends @Nullable Object> LinkedHashSet<E> newLinkedHashSet() {
    return new LinkedHashSet<>();
  }

  /**
   * Creates a <i>mutable</i> {@code LinkedHashSet} instance containing the given elements in order.
   *

import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.ConcurrentModificationException;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.ListIterator;
import java.util.NoSuchElementException;
import java.util.RandomAccess;
import java.util.Set;
import java.util.Vector;

import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.ConcurrentModificationException;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.ListIterator;
import java.util.NoSuchElementException;
import java.util.RandomAccess;
import java.util.Set;
import java.util.Vector;

   */
  @get:JvmName("queryParameterNames")
  val queryParameterNames: Set<String>
    get() {
      if (queryNamesAndValues == null) return emptySet()
      val result = LinkedHashSet<String>(queryNamesAndValues.size / 2, 1.0F)
      for (i in 0 until queryNamesAndValues.size step 2) {
        result.add(queryNamesAndValues[i]!!)
      }
      return result.unmodifiable()
    }

  /**