* number of milliseconds since start up will be output.
     *
     * @since 4.0.0
     */
    @Config
    public static final String MAVEN_LOGGER_DATE_TIME_FORMAT = MAVEN_LOGGER_PREFIX + "dateTimeFormat";

    /**
     * If you would like to output the current thread id, then set to true. Defaults to false.
     *
     * @since 4.0.0
     */

     * @return this MavenExecutionRequest
     * @since 3.2
     * @deprecated Since Maven 4: use {@link #getProjectActivation()}.
     */
    @Deprecated
    MavenExecutionRequest setExcludedProjects(List<String> projects);

    /**
     * @return the excluded projects, never {@code null}
     * @since 3.2
     * @deprecated Since Maven 4: use {@link #getProjectActivation()}.
     */
    @Deprecated

  /**
   * Ensures the truth of an expression involving one or more parameters to the calling method.
   *
   * <p>See {@link #checkArgument(boolean, String, Object...)} for details.
   *
   * @since 20.0 (varargs overload since 2.0)
   */
  public static void checkArgument(
      boolean expression, String errorMessageTemplate, char p1) {
    if (!expression) {

   * HTTP2-Settings} </a> header field name.
   *
   * @since 24.0
   */
  public static final String HTTP2_SETTINGS = "HTTP2-Settings";

  /** The HTTP {@code If-Match} header field name. */
  public static final String IF_MATCH = "If-Match";

  /** The HTTP {@code If-Modified-Since} header field name. */
  public static final String IF_MODIFIED_SINCE = "If-Modified-Since";

   *
   * @param className the name of the instance type
   * @since 18.0 (since 7.0 as {@code Objects.toStringHelper}).
   */
  public static ToStringHelper toStringHelper(String className) {
    return new ToStringHelper(className);
  }

  /**
   * Support class for {@link MoreObjects#toStringHelper}.
   *
   * @author Jason Lee
   * @since 18.0 (since 2.0 as {@code Objects.ToStringHelper}).
   */

   * custom message otherwise.
   *
   * <p>See {@link #verify(boolean, String, Object...)} for details.
   *
   * @since 23.1 (varargs overload since 17.0)
   */
  public static void verify(
      boolean expression, String errorMessageTemplate, char p1) {
    if (!expression) {
      throw new VerifyException(lenientFormat(errorMessageTemplate, p1));

     * @since 3.0-alpha-3
     */
    void setAuthentication(Authentication authentication);

    /**
     * @return repository authentication
     * @since 3.0-alpha-3
     */
    Authentication getAuthentication();

    /**
     * @param proxy proxy
     * @since 3.0-alpha-3
     */
    void setProxy(Proxy proxy);

    /**
     * @since 3.0-alpha-3

 *
 * @author Charles Fry
 * @since 10.0
 */
@GwtIncompatible
public abstract class ForwardingCache<K, V> extends ForwardingObject implements Cache<K, V> {

  /** Constructor for use by subclasses. */
  protected ForwardingCache() {}

  @Override
  protected abstract Cache<K, V> delegate();

  /**
   * @since 11.0
   */
  @Override
  public @Nullable V getIfPresent(Object key) {

   *
   * @since 7.0
   */
  protected boolean standardIsEmpty() {
    return !iterator().hasNext();
  }

  /**
   * A sensible definition of {@link #toString} in terms of {@link #iterator}. If you override
   * {@link #iterator}, you may wish to override {@link #toString} to forward to this
   * implementation.
   *
   * @since 7.0
   */
  protected String standardToString() {

   *
   * @since 7.0
   */
  protected boolean standardIsEmpty() {
    return !iterator().hasNext();
  }

  /**
   * A sensible definition of {@link #toString} in terms of {@link #iterator}. If you override
   * {@link #iterator}, you may wish to override {@link #toString} to forward to this
   * implementation.
   *
   * @since 7.0
   */
  protected String standardToString() {