ModelBuilderResult result = this.result;
        if (result.getModelIds().isEmpty()) {
            DefaultModelBuilderResult tmp = new DefaultModelBuilderResult();
            tmp.setEffectiveModel(result.getEffectiveModel());
            tmp.setProblems(getProblems());
            tmp.setActiveExternalProfiles(result.getActiveExternalProfiles());
            String id = getRootModelId();

     *            build only the specified POM files.
     * @param request The project builder configuration that provides further parameters, must not be {@code null}.
     * @return The results of the project builder where each result corresponds to one project that was built, never
     *         {@code null}.
     * @throws ProjectBuildingException If an error was encountered during building of any project.

    checkNotNull(type);
    AtomicReference<@Nullable Type> result = new AtomicReference<>();
    new TypeVisitor() {
      @Override
      void visitTypeVariable(TypeVariable<?> t) {
        result.set(subtypeOfComponentType(t.getBounds()));
      }

      @Override
      void visitWildcardType(WildcardType t) {
        result.set(subtypeOfComponentType(t.getUpperBounds()));
      }

      @Override

        ArtifactResolutionResult result = new ArtifactResolutionResult();

        if (request.isResolveRoot()) {
            try {
                resolve(request.getArtifact(), request);
                result.addArtifact(request.getArtifact());
            } catch (IOException e) {
                result.addMissingArtifact(request.getArtifact());
            }
        }

  private Multisets() {}

  /**
   * Returns a {@code Collector} that accumulates elements into a multiset created via the specified
   * {@code Supplier}, whose elements are the result of applying {@code elementFunction} to the
   * inputs, with counts equal to the result of applying {@code countFunction} to the inputs.
   * Elements are added in encounter order.
   *

      BaseEncoding result = upperCase;
      if (result == null) {
        Alphabet upper = alphabet.upperCase();
        result = upperCase = (upper == alphabet) ? this : newInstance(upper, paddingChar);
      }
      return result;
    }

    @Override
    public BaseEncoding lowerCase() {
      BaseEncoding result = lowerCase;
      if (result == null) {

    public void testGetAsObjectAndGetAsString() throws Exception {
        final DateConverter converter = new DateConverter("yyyy/MM/dd");
        final Date result = (Date) converter.getAsObject("2008/01/16");
        System.out.println(result);
        assertThat(converter.getAsString(result), is("2008/01/16"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testIsTarget() throws Exception {

     */
    V result = get(key);
    // TODO(b/192579700): Use a ternary once it no longer confuses our nullness checker.
    if (result != null) {
      return result;
    } else {
      return defaultValue;
    }
  }

  @LazyInit @RetainedWith @CheckForNull private transient ImmutableSet<Entry<K, V>> entrySet;

  /**

            throws ProjectBuildingException {
        ProjectBuildingResult result = super.build(pomFile, configuration);

        result.getProject().setRemoteArtifactRepositories(Collections.<ArtifactRepository>emptyList());

        return result;
    }

    checkNotNull(runnable);
    // TODO(b/139726489): Confirm that null is impossible here.
    Thread result = requireNonNull(platformThreadFactory().newThread(runnable));
    try {
      result.setName(name);
    } catch (SecurityException e) {
      // OK if we can't set the name in this environment.
    }
    return result;
  }

  // TODO(lukes): provide overloads for ListeningExecutorService? ListeningScheduledExecutorService?