map.put("One", 1);
    map.put("Three", 3);
    map.put("Null", null);
    Function<String, @Nullable Integer> function = Functions.forMap(map);

    assertEquals(1, function.apply("One").intValue());
    assertEquals(3, function.apply("Three").intValue());
    assertThat(function.apply("Null")).isNull();

    assertThrows(IllegalArgumentException.class, () -> function.apply("Two"));

    if (initialCapacity != null) {
      builder.initialCapacity(initialCapacity);
    }
    if (maximumSize != null) {
      builder.maximumSize(maximumSize);
    }
    if (maximumWeight != null) {
      builder.maximumWeight(maximumWeight);
    }
    if (concurrencyLevel != null) {
      builder.concurrencyLevel(concurrencyLevel);
    }

    if (initialCapacity != null) {
      builder.initialCapacity(initialCapacity);
    }
    if (maximumSize != null) {
      builder.maximumSize(maximumSize);
    }
    if (maximumWeight != null) {
      builder.maximumWeight(maximumWeight);
    }
    if (concurrencyLevel != null) {
      builder.concurrencyLevel(concurrencyLevel);
    }

     */
    public String[] getInputs() {
        return inputs == null ? null : inputs.clone();
    }

    /**
     * Gets the input words as a newline-separated string.
     *
     * @return The input words as a string.
     */
    public String getInputsValue() {
        if (inputs == null) {
            return StringUtil.EMPTY;
        }
        return String.join("\n", inputs);

        if (plugin == null && project.getPluginManagement() != null) {
            plugin = findPlugin(g, a, project.getPluginManagement().getPlugins());
        }

        if (plugin != null) {
            PluginExecution pluginExecution =
                    findPluginExecution(mojoExecution.getExecutionId(), plugin.getExecutions());

            XmlNode pomConfiguration = null;

            if (pluginExecution != null) {

        final byte[] result = Base64Util.decode("");
        assertNull("Empty string should return null", result);
    }

    /**
     * Test decode with null
     *
     * @throws Exception
     */
    public void testDecode_Null() throws Exception {
        final byte[] result = Base64Util.decode(null);
        assertNull("Null should return null", result);
    }

    /**
     * Test encode/decode round trip with various data

   * elements are in the first {@code k} positions of {@code contents}, and {@code contents[i] ==
   * null} for {@code k <= i < n}.
   *
   * <p>This method takes ownership of {@code contents}; do not modify {@code contents} after this
   * returns.
   *
   * @throws NullPointerException if any of the first {@code n} elements of {@code contents} is null
   */
  static <E> ImmutableSortedSet<E> construct(

    return rowKey != null && safeContainsKey(backingMap, rowKey);
  }

  @Override
  public boolean containsValue(@Nullable Object value) {
    return value != null && super.containsValue(value);
  }

  @Override
  public @Nullable V get(@Nullable Object rowKey, @Nullable Object columnKey) {
    return (rowKey == null || columnKey == null) ? null : super.get(rowKey, columnKey);
  }

        if (text == null) {
            return null;
        }
        String tmp = text;
        for (final Normalizer normalizer : normalizers) {
            tmp = normalizer.normalize(tmp, field, langs);
            if (tmp == null) {
                return null;
            }
        }
        return tmp;
    }

    /**

    }

    /**
     * Interpolates given {@code path}.
     *
     * @return absolute path or {@code null} if the input was {@code null}
     */
    public String interpolate(String path, ProfileActivationContext context) throws InterpolationException {
        if (path == null) {
            return null;
        }

        RegexBasedInterpolator interpolator = new RegexBasedInterpolator();