}

  @JvmStatic
  fun repeat(
    c: Char,
    count: Int,
  ): String {
    val array = CharArray(count)
    Arrays.fill(array, c)
    return String(array)
  }

  /**
   * Okio buffers are internally implemented as a linked list of arrays. Usually this implementation
   * detail is invisible to the caller, but subtle use of certain APIs may depend on these internal
   * structures.

    }
  }

  @Test fun readPaddedDataFrame() {
    val dataLength = 1123
    val expectedData = ByteArray(dataLength)
    Arrays.fill(expectedData, 2.toByte())
    val paddingLength = 254
    val padding = ByteArray(paddingLength)
    Arrays.fill(padding, 0.toByte())
    writeMedium(frame, dataLength + paddingLength + 1)
    frame.writeByte(Http2.TYPE_DATA)
    frame.writeByte(FLAG_PADDED)

    override fun getAcceptedIssuers(): Array<X509Certificate> = delegate.acceptedIssuers

    override fun checkClientTrusted(
      chain: Array<X509Certificate>,
      authType: String,
    ) {
      calls.add("checkClientTrusted " + certificatesToString(chain))
    }

    override fun checkServerTrusted(
      chain: Array<X509Certificate>,
      authType: String,
    ) {

    if (other !is ConnectionSpec) return false
    if (other === this) return true

    if (this.isTls != other.isTls) return false

    if (isTls) {
      if (!Arrays.equals(this.cipherSuitesAsString, other.cipherSuitesAsString)) return false
      if (!Arrays.equals(this.tlsVersionsAsString, other.tlsVersionsAsString)) return false
      if (this.supportsTlsExtensions != other.supportsTlsExtensions) return false
    }

```java
OkHttpClient client = new OkHttpClient.Builder()
    .connectionSpecs(Arrays.asList(ConnectionSpec.MODERN_TLS, ConnectionSpec.COMPATIBLE_TLS))
    .build();
```

          x509Certificates: Array<X509Certificate>,
          s: String,
        ) {
        }

        override fun checkServerTrusted(
          x509Certificates: Array<X509Certificate>,
          s: String,
        ) {
        }

        override fun getAcceptedIssuers(): Array<X509Certificate> {
          return arrayOf()
        }
      }
    client =

/**
 * Read and write HPACK v10.
 *
 * http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-12
 *
 * This implementation uses an array for the dynamic table and a list for indexed entries. Dynamic
 * entries are added to the array, starting in the last position moving forward. When the array
 * fills, it is doubled.
 */
@Suppress("NAME_SHADOWING")
object Hpack {
  private const val PREFIX_4_BITS = 0x0f

import java.net.Socket;
import java.security.GeneralSecurityException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;

        )
      val trustManager =
        newTrustManager(
          null,
          Arrays.asList(serverRootCa.certificate, clientRootCa.certificate),
          emptyList(),
        )
      val sslContext = SSLContext.getInstance("TLS")
      sslContext.init(
        arrayOf<KeyManager>(keyManager),
        arrayOf<TrustManager>(trustManager),
        SecureRandom(),
      )
      sslContext.socketFactory

import java.net.ConnectException
import java.net.HttpURLConnection
import java.net.ProtocolException
import java.net.SocketTimeoutException
import java.nio.charset.StandardCharsets
import java.util.Arrays
import java.util.concurrent.TimeUnit
import java.util.concurrent.atomic.AtomicBoolean
import javax.net.ssl.HttpsURLConnection
import kotlin.test.assertFailsWith
import okhttp3.Headers
import okhttp3.Protocol