Request
        .Builder()
        .url("https://publicobject.com/robots.txt")
        .build()

    client.newCall(request).execute().use { response ->
      if (!response.isSuccessful) throw IOException("Unexpected code $response")

      for (certificate in response.handshake!!.peerCertificates) {
        println(CertificatePinner.pin(certificate))
      }
    }
  }
}

fun main() {
  CertificatePinning().run()

      Request
        .Builder()
        .url("http://httpbin.org/delay/2") // This URL is served with a 2 second delay.
        .build()

    client.newCall(request).execute().use { response ->
      println("Response completed: $response")
    }
  }
}

fun main() {
  ConfigureTimeouts().run()

class JavaNetAuthenticator : Authenticator {
  @Throws(IOException::class)
  override fun authenticate(
    route: Route?,
    response: Response,
  ): Request? = JAVA_NET_AUTHENTICATOR.authenticate(route, response)

import org.codelibs.fess.util.RenderDataUtil;
import org.dbflute.optional.OptionalEntity;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.response.render.RenderData;
import org.lastaflute.web.ruts.process.ActionRuntime;

import jakarta.annotation.Resource;

/**
 * Admin action for Role management.
 *
 */

import jcifs.internal.dfs.DfsReferralResponseBuffer;
import jcifs.internal.smb1.trans.SmbComTransaction;
import jcifs.internal.smb1.trans.SmbComTransactionResponse;

/**
 * Trans2 GetDfsReferral response message for DFS referral queries.
 * This class handles the response from a TRANS2_GET_DFS_REFERRAL request, which returns
 * DFS referral information for redirecting clients to distributed file system targets.
 */

import jcifs.internal.smb1.trans.nt.FileNotifyInformationImpl;
import jcifs.internal.smb2.ServerMessageBlock2Response;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.NtStatus;

/**
 * SMB2 Change Notify response message.
 *
 * This response contains information about file system changes
 * that occurred in the monitored directory.
 *
 * @author mbechler
 */

## Base64 vs Files { #base64-vs-files }

Consider first if you can use [Request Files](../tutorial/request-files.md) for uploading binary data and [Custom Response - FileResponse](./custom-response.md#fileresponse--fileresponse-) for sending binary data, instead of encoding it in JSON.

JSON can only contain UTF-8 encoded strings, so it can't contain raw bytes.

    }

    /**
     * Processes the CORS request by adding standard CORS headers to the response.
     * Headers include allowed origin, methods, headers, max age, and credentials setting.
     *
     * @param origin the origin of the request
     * @param request the servlet request
     * @param response the servlet response to add CORS headers to
     */
    @Override

import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.codelibs.fess.opensearch.config.exentity.RequestHeader;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin request header management.
 *
 */
public class ApiAdminReqheaderAction extends FessApiAdminAction {

import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.codelibs.fess.opensearch.config.exentity.WebAuthentication;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin web authentication management.
 *
 */
public class ApiAdminWebauthAction extends FessApiAdminAction {