}
            }
            return buf.toString();
        };
        final String message;
        if (Constants.TRUE.equalsIgnoreCase(ComponentUtil.getFessConfig().getApiJsonResponseExceptionIncluded())) {
            message = escapeJsonKeyValue(MESSAGE_FIELD, stacktraceString.get());
        } else {
            final String errorCode = UUID.randomUUID().toString();

     * comment: Whether to include exceptions in API JSON response.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getApiJsonResponseExceptionIncluded();

    /**
     * Is the property for the key 'api.json.response.exception.included' true? <br>
     * The value is, e.g. false <br>
     * comment: Whether to include exceptions in API JSON response.