this.s = s;
  }

  @Override
  public int hashCode() { // delegate to 's'
    return s.hashCode();
  }

  @Override
  public boolean equals(@Nullable Object other) {
    if (other == null) {
      return false;
    } else if (other instanceof BaseComparable) {
      return s.equals(((BaseComparable) other).s);
    } else {
      return false;
    }
  }

  @Override

of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all

this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all

import java.util.Locale;
import java.util.Map;

import org.codelibs.core.lang.StringUtil;

/**
 * @author shinsuke
 *
 */
public class EncodingHelper {

    protected String defaultEncoding = null;

    protected Map<String, String> encodingMap = new HashMap<>();

    public String normalize(final String enc) {
        if (StringUtil.isBlank(enc)) {
            return defaultEncoding;
        }

        assertEquals(1000L, contentLengthHelper.getMaxLength(mimeType));
    }

    public void test_getMaxLength_blank() {
        String mimeType;

        mimeType = null;
        assertEquals(DEFAULT_MAX_LENGTH, contentLengthHelper.getMaxLength(mimeType));

        mimeType = "";
        assertEquals(DEFAULT_MAX_LENGTH, contentLengthHelper.getMaxLength(mimeType));

        mimeType = " ";

        // cid
        final String configId = config.getConfigId();
        if (configId != null) {
            defaultDataMap.put(fessConfig.getIndexFieldConfigId(), configId);
        }
        //  expires
        if (documentExpires != null) {
            defaultDataMap.put(fessConfig.getIndexFieldExpires(), documentExpires);
        }
        // segment

        });

    }

    protected boolean isImageMimeType(final ResponseData responseData) {
        final String mimeType = responseData.getMimeType();
        if (mimeType == null) {
            return true;
        }

        return switch (mimeType) {
        case "image/png", "image/gif", "image/jpeg", "image/bmp" -> true;
        default -> false;
        };
    }

  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingRunnable runnable) {
    return doAssertThrows(
        expectedThrowable,
        () -> {
          runnable.run();
          return null;
        },
        /* userPassedSupplier= */ false);
  }

  private static <T extends Throwable> T doAssertThrows(
      Class<T> expectedThrowable, ThrowingSupplier supplier, boolean userPassedSupplier) {

    }

    public static boolean equalsDeep(Object m1, Object m2) {
        try {
            if (m1 == m2) {
                return true;
            }
            if (m1 == null || m2 == null) {
                return false;
            }
            if (!Objects.equals(m1.getClass(), m2.getClass())) {
                return false;
            }

                        "client_id": IsDict(
                            {
                                "title": "Client Id",
                                "anyOf": [{"type": "string"}, {"type": "null"}],
                            }
                        )
                        | IsDict(
                            # TODO: remove when deprecating Pydantic v1