.filter(Expression::isLiteralStringValueExpr)
                    .map(Expression::asLiteralStringValueExpr)
                    .map(LiteralStringValueExpr::getValue)
                    .orElse(null);
                getCurrentClass().getConstants().put(constName, value);
            });
        }
    }

    private TypeMetaData extractTypeName(Type type) {

            final String key = e.getKey();
            String value = e.getValue();
            for (final Map.Entry<String, String> entry : paramEnvMap.entrySet()) {
                value = value.replace("${" + entry.getKey() + "}", entry.getValue());
            }
            return new Pair<>(key, value);

    for (K key : sampleKeys()) {
      List<V> expectedValues = new ArrayList<>();
      for (Entry<K, V> entry : getSampleElements()) {
        if (entry.getKey().equals(key)) {
          expectedValues.add(entry.getValue());
        }
      }

      Collection<V> collection = multimap().asMap().get(key);
      if (expectedValues.isEmpty()) {
        assertNull(collection);
      } else {

      for (Object element : elements) {
        @SuppressWarnings("unchecked")
        Entry<String, Integer> entry = (Entry<String, Integer>) element;
        multimap.put(entry.getKey(), entry.getValue());
      }
      return multimap.entries();
    }

    abstract Multimap<String, Integer> createMultimap();

    @Override
    @SuppressWarnings("unchecked")

  private static final Predicate<@Nullable Integer> EVEN = input -> input == null || input % 2 == 0;
  static final Predicate<Entry<String, Integer>> CORRECT_LENGTH =
      input -> input.getKey().length() == input.getValue();

  abstract Map<String, Integer> createUnfiltered();

  public void testFilteredKeysIllegalPut() {
    Map<String, Integer> unfiltered = createUnfiltered();

    public BuildTimestampValueSource(Date startTime, String format) {
        super(false);
        this.startTime = startTime;
        this.format = format;
    }

    public Object getValue(String expression) {
        if ("build.timestamp".equals(expression) || "maven.build.timestamp".equals(expression)) {
            if (formattedDate == null && startTime != null) {

            return null;
        }
        String convertedUrl = url;
        for (final Map.Entry<String, String> entry : convertMap.entrySet()) {
            convertedUrl = convertedUrl.replaceAll(entry.getKey(), entry.getValue());
        }
        return convertedUrl;
    }

    public void add(final String target, final String replacement) {
        if (target == null || replacement == null) {

    for (K key : sampleKeys()) {
      List<V> expectedValues = new ArrayList<>();
      for (Entry<K, V> entry : getSampleElements()) {
        if (entry.getKey().equals(key)) {
          expectedValues.add(entry.getValue());
        }
      }

      Collection<V> collection = multimap().asMap().get(key);
      if (expectedValues.isEmpty()) {
        assertNull(collection);
      } else {

    BuildTimestampValueSource(Date startTime, Map<String, String> properties) {
        super(false);
        this.startTime = startTime;
        this.properties = properties;
    }

    @Override
    public Object getValue(String expression) {
        if ("build.timestamp".equals(expression) || "maven.build.timestamp".equals(expression)) {
            return new MavenBuildTimestamp(startTime, properties).formattedTimestamp();
        }

                factory.setAttribute(entry.getKey(), entry.getValue());
            }

            for (final Map.Entry<String, String> entry : featureMap.entrySet()) {
                factory.setFeature(entry.getKey(), "true".equalsIgnoreCase(entry.getValue()));
            }

            factory.setCoalescing(coalescing);