private static final ConcurrentMap<String, Object> EXPRESSION_CACHE = new ConcurrentHashMap<>();

    protected Object fromExpression(
            final PlexusConfiguration configuration, final ExpressionEvaluator evaluator, final Class<?> type)
            throws ComponentConfigurationException {
        String value = configuration.getValue();
        try {
            Object result = null;

     * @return The updated source map.
     */
    public Map<String, Object> getUpdatedSource(final Map<String, Object> existingSource) {
        final Map<String, Object> map = new HashMap<>();
        map.put(FieldNames.TEXT, text);

        for (int i = 0; i < readings.length; i++) {
            final Object readingObj = existingSource.get(FieldNames.READING_PREFIX + i);
            if (readingObj instanceof List) {

   */
  protected NavigableSet<K> standardDescendingKeySet() {
    return descendingMap().navigableKeySet();
  }

  /**
   * A sensible definition of {@link #subMap(Object, Object)} in terms of {@link #subMap(Object,
   * boolean, Object, boolean)}. If you override {@code subMap(K, boolean, K, boolean)}, you may
   * wish to override {@code subMap} to forward to this implementation.
   */
  @Override

   */
  protected NavigableSet<K> standardDescendingKeySet() {
    return descendingMap().navigableKeySet();
  }

  /**
   * A sensible definition of {@link #subMap(Object, Object)} in terms of {@link #subMap(Object,
   * boolean, Object, boolean)}. If you override {@code subMap(K, boolean, K, boolean)}, you may
   * wish to override {@code subMap} to forward to this implementation.
   */
  @Override

 *
 * @author Harry Heymann
 * @since 2.0
 */
@GwtCompatible
@FunctionalInterface
public interface Supplier<T extends @Nullable Object> extends java.util.function.Supplier<T> {
  /**
   * Retrieves an instance of the appropriate type. The returned object may or may not be a new
   * instance, depending on the implementation.
   *
   * @return an instance of the appropriate type
   */
  @Override

  @Weak private final EventBus bus;

  SubscriberRegistry(EventBus bus) {
    this.bus = checkNotNull(bus);
  }

  /** Registers all subscriber methods on the given listener object. */
  void register(Object listener) {
    Multimap<Class<?>, Subscriber> listenerMethods = findAllSubscribers(listener);

    for (Entry<Class<?>, Collection<Subscriber>> entry : listenerMethods.asMap().entrySet()) {

          && getUpperBoundType().equals(r.getUpperBoundType())
          && Objects.equals(getLowerEndpoint(), r.getLowerEndpoint())
          && Objects.equals(getUpperEndpoint(), r.getUpperEndpoint());
    }
    return false;
  }

  @Override
  public int hashCode() {
    return Objects.hash(
        comparator,
        getLowerEndpoint(),
        getLowerBoundType(),

     */
    private final Object[] args;

    /**
     * The SQL string.
     */
    private final String sql;

    /**
     * Creates a {@link ClSQLException}.
     *
     * @param messageCode
     *            Message code
     * @param args
     *            Array of arguments
     */
    public ClSQLException(final String messageCode, final Object[] args) {

    /**
     * Converts the given object to a string.
     *
     * @param value
     *            The object to convert
     * @return The converted {@literal String}
     */
    public static String toString(final Object value) {
        return toString(value, null);
    }

    /**
     * Converts the given object to a string.
     *
     * @param value

   */
  @Override
  public boolean contains(@Nullable Object rowKey, @Nullable Object columnKey) {
    return containsRow(rowKey) && containsColumn(columnKey);
  }

  /**
   * Returns {@code true} if the provided column key is among the column keys provided when the
   * table was constructed.
   */
  @Override
  public boolean containsColumn(@Nullable Object columnKey) {
    return columnKeyToIndex.containsKey(columnKey);