* <p>Example usage for Basic authentication:</p>
 * <pre>{@code
 * WebAuthenticationConfig config = new WebAuthenticationConfig();
 * config.setHost("example.com");
 * config.setPort(80);
 * config.setCredentials(credentialsConfig);
 * }</pre>
 *
 * <p>Example usage for Form-based authentication:</p>
 * <pre>{@code
 * WebAuthenticationConfig config = new WebAuthenticationConfig();
 * config.setHost("example.com");

    private WebConfig webConfig;

    public WebAuthenticationConfig getWebAuthenticationConfig() {
        if (StringUtil.isEmpty(getUsername())) {
            throw new CrawlerSystemException(
                    "Username is empty in WebAuthentication configuration. A valid username must be provided for authentication.");
        }

        final WebAuthenticationConfig config = new WebAuthenticationConfig();

import org.codelibs.fess.crawler.client.http.config.CredentialsConfig.CredentialsType;
import org.codelibs.fess.crawler.client.http.config.WebAuthenticationConfig;
import org.codelibs.fess.crawler.client.http.config.WebAuthenticationConfig.AuthSchemeType;
import org.codelibs.fess.crawler.client.smb.SmbAuthentication;
import org.codelibs.fess.crawler.client.smb.SmbClient;

        final List<WebAuthenticationConfig> authConfigList = new ArrayList<>();
        for (final WebAuthentication webAuth : webAuthList) {
            authConfigList.add(webAuth.getWebAuthenticationConfig());
        }
        paramMap.put(HcHttpClient.AUTHENTICATIONS_PROPERTY, authConfigList.toArray(new WebAuthenticationConfig[authConfigList.size()]));

        // request header

import org.codelibs.fess.crawler.client.CrawlerClientFactory;
import org.codelibs.fess.crawler.client.http.HcHttpClient;
import org.codelibs.fess.crawler.client.http.config.WebAuthenticationConfig;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.mylasta.direction.FessProp;
import org.codelibs.fess.unit.UnitFessTestCase;

            return null;
        }

        Properties result = null;

        if (value instanceof WebAuthenticationConfig[]) {
            for (final WebAuthenticationConfig config : (WebAuthenticationConfig[]) value) {
                if (config.getAuthSchemeType() == WebAuthenticationConfig.AuthSchemeType.NTLM) {
                    if (result == null) {
                        result = new Properties();

        if (value instanceof WebAuthenticationConfig[]) {
            return convertFromConfig((WebAuthenticationConfig[]) value);
        }

        logger.warn("Unknown authentication type: type={}", value.getClass().getName());
        return new Hc4Authentication[0];
    }

    /**
     * Converts WebAuthenticationConfig POJO array to Hc4Authentication array.
     *