if err = r.PopulatePublicKey(arn); err != nil {
			return err
		}
		jwtToken, err = jwtgo.ParseWithClaims(token, &mclaims, keyFuncCallback)
		if err != nil {
			return err
		}
	}

	if !jwtToken.Valid {
		return ErrTokenExpired
	}

	if err = updateClaimsExpiry(dsecs, mclaims); err != nil {
		return err
	}

	if err = r.updateUserinfoClaims(ctx, arn, accessToken, mclaims); err != nil {
		return err

          shift += 24;
          len += 3;
        } else {
          int codePoint = Character.codePointAt(input, i);
          if (codePoint == c) {
            // not a valid code point; let the JDK handle invalid Unicode
            return hashBytes(input.toString().getBytes(charset));
          }
          i++;
          buffer |= codePointToFourUtf8Bytes(codePoint) << shift;

    /**
     * Validate host name
     */
    private boolean isValidHost(String host) {
        if (host == null || host.isEmpty()) {
            return false;
        }

        // Check for valid hostname or IP address
        // Simple validation - can be enhanced
        if (host.length() > 255) {
            return false;
        }

        // Check for invalid characters

        recordNameField.setAccessible(true);
        Name mockRecordName = new Name(mockConfig);
        recordNameField.set(nameQueryResponse, mockRecordName);

        // Prepare a byte array with valid NetBIOS name format
        byte[] src = new byte[100];
        int srcIndex = 0;

        // Start with compressed name pointer (0xC0) to use questionName
        src[srcIndex] = (byte) 0xC0;

```JSON
{
  "detail": [
    {
      "type": "int_parsing",
      "loc": [
        "path",
        "item_id"
      ],
      "msg": "Input should be a valid integer, unable to parse string as an integer",
      "input": "foo"
    }
  ]
}
```

porque o parâmetro de path `item_id` tinha o valor `"foo"`, que não é um `int`.

```JSON
{
  "detail": [
    {
      "type": "int_parsing",
      "loc": [
        "path",
        "item_id"
      ],
      "msg": "Input should be a valid integer, unable to parse string as an integer",
      "input": "foo"
    }
  ]
}
```

这是因为路径参数 `item_id` 的值（`"foo"`）的类型不是 `int`。

	// Extend the type to uint16 when hit.
	if uint32(handlerLast) > 255 {
		panic(fmt.Sprintf("out of handler IDs. %d > %d", handlerLast, 255))
	}
}

func (h HandlerID) valid() bool {
	return h != handlerInvalid && h < handlerLast
}

func (h HandlerID) isTestHandler() bool {
	return h >= handlerTest && h <= handlerTest2
}

// RemoteErr is a remote error type.

Cela garantit que le point de terminaison met approximativement le même temps à répondre que le nom d'utilisateur soit valide ou non, empêchant des **attaques temporelles** qui pourraient être utilisées pour énumérer les noms d'utilisateur existants.

/// note | Remarque

        OK,
        /** Thumbnail generation failed due to processing errors */
        FAILED,
        /** Image dimensions do not meet validation requirements */
        INVALID_SIZE,
        /** No valid image data was found in the input */
        NO_IMAGE;
    }

        SmbNegotiationRequest request = mock(SmbNegotiationRequest.class);
        response.getServerData().scapabilities = SmbConstants.CAP_UNICODE;
        // Set some required server data for valid response
        response.getServerData().smaxMpxCount = 1;
        response.getServerData().maxBufferSize = 16384;

        assertTrue(response.isValid(mockContext, request));