* Returns a new {@code MutableClassToInstanceMap} instance backed by a {@link HashMap} using the
   * default initial capacity and load factor.
   */
  public static <B extends @Nullable Object> MutableClassToInstanceMap<B> create() {
    return new MutableClassToInstanceMap<>(new HashMap<Class<? extends @NonNull B>, B>());
  }

  /**
   * Returns a new {@code MutableClassToInstanceMap} instance backed by a given empty {@code

          "exemplar": true,
          "expr": "minio_cluster_replication_proxied_head_requests_total{job=\"$scrape_jobs\"}",
          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "{{instance}}",
          "range": true,
          "refId": "A"
        }
      ],
      "title": "Total Proxied Head Requests",
      "type": "timeseries"
    },
    {
      "datasource": {

  /**
   * Returns a representation of {@code a} as an instance of type {@code B}. If {@code a} cannot be
   * converted, an unchecked exception (such as {@link IllegalArgumentException}) should be thrown.
   *
   * @param a the instance to convert; will never be null
   * @return the converted instance; <b>must not</b> be null
   */
  @ForOverride
  protected abstract B doForward(A a);

<components namespace="fessCrawler">
    <component name="crawler" class="org.codelibs.fess.crawler.Crawler" instance="prototype"/>
    <component name="httpClient" class="org.codelibs.fess.crawler.client.http.HcHttpClient" instance="singleton"/>
    <component name="fileTransformer" class="org.codelibs.fess.crawler.transformer.impl.FileTransformer" instance="singleton"/>
</components>
```

### Crawler Context Configuration

```java

        void update(@Nonnull ByteBuffer input);

        /**
         * Returns the algorithm end result as string, never {@code null}. After invoking this method, this instance should
         * be discarded and not reused. For new checksum calculation you have to get new instance.
         */
        @Nonnull
        String checksum();
    }

     * @param index The index name.
     * @return This SuggestIndexer instance.
     */
    public SuggestIndexer setIndexName(final String index) {
        this.index = index;
        return this;
    }

    /**
     * Sets the supported fields.
     * @param supportedFields The supported fields.
     * @return This SuggestIndexer instance.
     */

  }

  /**
   * Creates an instance of {@link ToStringHelper} in the same manner as {@link
   * #toStringHelper(Object)}, but using the simple name of {@code clazz} instead of using an
   * instance's {@link Object#getClass()}.
   *
   * <p>Note that in GWT, class names are often obfuscated.
   *
   * @param clazz the {@link Class} of the instance
   * @since 18.0 (since 7.0 as {@code Objects.toStringHelper()}).

            K, V, StrongKeyStrongValueEntry<K, V>, StrongKeyStrongValueSegment<K, V>> {
      private static final Helper<?, ?> INSTANCE = new Helper<>();

      @SuppressWarnings("unchecked")
      static <K, V> Helper<K, V> instance() {
        return (Helper<K, V>) INSTANCE;
      }

      @Override
      public Strength keyStrength() {
        return Strength.STRONG;
      }

      @Override

  protected ForwardingObject() {}

  /**
   * Returns the backing delegate instance that methods are forwarded to. Abstract subclasses
   * generally override this method with an abstract method that has a more specific return type,
   * such as {@link ForwardingSet#delegate}. Concrete subclasses override this method to supply the
   * instance being decorated.
   */
  protected abstract Object delegate();

    private SearchRequestParams params;

    private boolean escape = false;

    private String sortField;

    /**
     * Default constructor for QueryStringBuilder.
     * Initializes a new instance with default settings for escape and sortField.
     */
    public QueryStringBuilder() {
        // Default constructor
    }

    /**
     * Quotes a string value if it contains spaces.