message: String,
    stackTrace: Any?,
  ) {
    var logMessage = message
    if (stackTrace == null) {
      logMessage += " To see where this was allocated, set the OkHttpClient logger level to " +
        "FINE: Logger.getLogger(OkHttpClient.class.getName()).setLevel(Level.FINE);"
    }
    log(logMessage, WARN, stackTrace as Throwable?)
  }

package okhttp3.recipes.kt

import java.io.IOException
import java.util.concurrent.Executors
import java.util.concurrent.TimeUnit
import okhttp3.OkHttpClient
import okhttp3.Request

class CancelCall {
  private val executor = Executors.newScheduledThreadPool(1)
  private val client = OkHttpClient()

  fun run() {
    val request =
      Request
        .Builder()

    The best practice in OkHttp 3 is to create a single OkHttpClient instance
    and share it throughout the application. Requests that needs a customized
    client should call `OkHttpClient.newBuilder()` on that shared instance.
    This allows customization without the drawbacks of separate connection
    pools.

 *  **OkHttpClient is now stateless.** In the 2.x API `OkHttpClient` had getters

import javax.net.ssl.X509TrustManager;
import okhttp3.CipherSuite;
import okhttp3.ConnectionSpec;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

import static java.util.Arrays.asList;

public final class CustomCipherSuites {
  private final OkHttpClient client;

  public CustomCipherSuites() throws GeneralSecurityException {

 * limitations under the License.
 */
package okhttp3.recipes;

import java.io.IOException;
import java.security.cert.X509Certificate;
import okhttp3.Headers;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import okhttp3.tls.Certificates;
import okhttp3.tls.HandshakeCertificates;

public final class CustomTrust {

 *
 *
 * The resulting file is used by [PublicSuffixDatabase].
 */
class PublicSuffixListGenerator(
  projectRoot: Path = ".".toPath(),
  val fileSystem: FileSystem = FileSystem.SYSTEM,
  val client: OkHttpClient = OkHttpClient(),
) {
  private val testResources = projectRoot / "okhttp/src/jvmTest/resources"
  private val publicSuffixListDotDat = testResources / "okhttp3/internal/publicsuffix/public_suffix_list.dat"

package okhttp3.recipes;

import java.io.IOException;
import java.security.cert.Certificate;
import okhttp3.CertificatePinner;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public final class CertificatePinning {
  private final OkHttpClient client = new OkHttpClient.Builder()
      .certificatePinner(
          new CertificatePinner.Builder()

 * limitations under the License.
 */
package okhttp3.recipes;

import java.io.IOException;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public final class AccessHeaders {
  private final OkHttpClient client = new OkHttpClient();

  public void run() throws Exception {
    Request request = new Request.Builder()

import okio.GzipSource

/**
 * An OkHttp interceptor which logs request and response information. Can be applied as an
 * [application interceptor][OkHttpClient.interceptors] or as a [OkHttpClient.networkInterceptors].
 *
 * The format of the logs created by this class should not be considered stable and may
 * change slightly between releases. If you need a stable logging format, use your own interceptor.
 */
class HttpLoggingInterceptor
  @JvmOverloads

import java.io.IOException;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Headers;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import okhttp3.ResponseBody;

public final class AsynchronousGet {
  private final OkHttpClient client = new OkHttpClient();

  public void run() throws Exception {
    Request request = new Request.Builder()