fun value(index: Int): String = commonValue(index)

  /** Returns an immutable case-insensitive set of header names. */
  fun names(): Set<String> {
    val result = TreeSet(String.CASE_INSENSITIVE_ORDER)
    for (i in 0 until size) {
      result.add(name(i))
    }
    return Collections.unmodifiableSet(result)
  }

  /** Returns an immutable list of the header values for `name`. */

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Immutable;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.NotThreadSafe;

import static org.apache.maven.api.services.BaseRequest.nonNull;

/**
 *
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface ArtifactFactoryRequest {

    @Nonnull
    Session getSession();

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.api.services;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Immutable;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;

/**
 * Describes a problem that was encountered during project building. A problem can either be an exception that was

@ElementTypesAreNonnullByDefault
public class RegularImmutableAsListTest extends TestCase {
  /**
   * RegularImmutableAsList should assume its input is null-free without checking, because it only
   * gets invoked from other immutable collections.
   */
  public void testDoesntCheckForNull() {
    ImmutableSet<Integer> set = ImmutableSet.of(1, 2, 3);
    ImmutableList<Integer> unused =

internal fun Response.headersContentLength(): Long {
  return headers["Content-Length"]?.toLongOrDefault(-1L) ?: -1L
}

/** Returns an immutable copy of this. */
internal fun <T> List<T>.toImmutableList(): List<T> {
  return Collections.unmodifiableList(toMutableList())
}

/** Returns an immutable list containing [elements]. */
@SafeVarargs
internal fun <T> immutableListOf(vararg elements: T): List<T> {

  }

  /**
   * Splits {@code sequence} into string components and returns them as an immutable list. If you
   * want an {@link Iterable} which may be lazily evaluated, use {@link #split(CharSequence)}.
   *
   * @param sequence the sequence of characters to split
   * @return an immutable list of the segments split from the parameter
   * @since 15.0
   */

 */

package com.google.common.collect;

import com.google.common.annotations.GwtCompatible;
import java.io.Serializable;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * An immutable {@code Map.Entry}, used both by {@link
 * com.google.common.collect.Maps#immutableEntry(Object, Object)} and by other parts of {@code
 * common.collect} as a superclass.
 */
@GwtCompatible(serializable = true)

import org.apache.maven.api.annotations.Immutable;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.NotThreadSafe;

import static org.apache.maven.api.services.BaseRequest.nonNull;

/**
 * A request for creating a {@link ArtifactCoordinates} object.
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface ArtifactCoordinatesFactoryRequest {

  }

  /**
   * Returns an empty immutable range map.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked")
  public static <K extends Comparable<?>, V> ImmutableRangeMap<K, V> of() {
    return (ImmutableRangeMap<K, V>) EMPTY;
  }

  /** Returns an immutable range map mapping a single range to a single value. */

   * {@code Optional.orElse(null)}.
   */
  @CheckForNull
  public abstract T orNull();

  /**
   * Returns an immutable singleton {@link Set} whose only element is the contained instance if it
   * is present; an empty immutable {@link Set} otherwise.
   *
   * <p><b>Comparison to {@code java.util.Optional}:</b> this method has no equivalent in Java 8's