public boolean containsValue(final Object value) {
        return parent.containsValue(value);
    }

    @Override
    public V get(final Object key) {
        final V value = parent.get(key);
        if (value != null) {
            return value;
        }
        return parent.get(toCamelCase(key));
    }

    @Override
    public V put(final K key, final V value) {
        return parent.put(key, value);

        }
    }

    /**
     * Gets the maximum size for alphanumeric terms from configuration.
     *
     * @return the maximum alphanumeric term size
     */
    protected int getMaxAlphanumTermSize() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return fessConfig.getCrawlerDocumentMaxAlphanumTermSizeAsInteger();
    }

    /**

    // A task should have been scheduled
    assertTrue(fakePool.hasNext());
    e.execute(intCounter);
    // Our executor hasn't run any tasks yet.
    assertEquals(0, totalCalls.get());
    fakePool.runAll();
    assertEquals(2, totalCalls.get());
    // Queue is empty so no runner should be scheduled.
    assertFalse(fakePool.hasNext());

    // Check that execute can be safely repeated
    e.execute(intCounter);

            System.clearProperty(testKey);
        }
    }

    // Test multiple gets with different keys
    @Test
    public void test_get_multipleKeys() {
        // Test getting multiple different properties
        String value1 = fessConfig.get("domain.title");
        String value2 = fessConfig.get("search_engine.type");

        assertEquals("Test Fess", value1);
        assertEquals("opensearch", value2);

        return userInfo;
    }

    /**
     * Gets user information.
     *
     * @param userCode The user code.
     * @return The user information.
     */
    public OptionalEntity<UserInfo> getUserInfo(final String userCode) {
        if (StringUtil.isNotBlank(userCode)) {
            try {
                return OptionalEntity.of(userInfoCache.get(userCode));
            } catch (final ExecutionException e) {

   */
  interface InternalEntry<K, V, E extends InternalEntry<K, V, E>> {
    /** Gets the next entry in the chain. */
    E getNext();

    /** Gets the entry's hash. */
    int getHash();

    /** Gets the key for this entry. */
    K getKey();

    /** Gets the value for the entry. */
    V getValue();
  }

  /*

    }

    /**
     * Gets a document asynchronously.
     *
     * @param request the get request
     * @return a future for the get response
     */
    @Override
    public ActionFuture<GetResponse> get(final GetRequest request) {
        return client.get(request);
    }

    /**
     * Gets a document asynchronously with a callback.
     *

   */
  interface InternalEntry<K, V, E extends InternalEntry<K, V, E>> {
    /** Gets the next entry in the chain. */
    E getNext();

    /** Gets the entry's hash. */
    int getHash();

    /** Gets the key for this entry. */
    K getKey();

    /** Gets the value for the entry. */
    V getValue();
  }

  /*

    public <T> T[] toArray(final T[] a) {
        return parent.toArray(a);
    }

    /**
     * Gets the starting position of the current page in the overall result set.
     *
     * @return the start position (0-based)
     */
    public int getStart() {
        return start;
    }

    /**
     * Gets the offset value used for pagination calculations.
     *
     * @return the offset value
     */

            return parent.retainAll(c);
        }

        @Override
        public void clear() {
            parent.clear();
        }

        @Override
        public E get(final int index) {
            return parent.get(index);
        }

        @Override
        public E set(final int index, final E element) {
            return parent.set(index, element);
        }

        @Override