} catch (e: IllegalAccessException) {
        throw AssertionError("unable to get issues and signature", e)
      } catch (_: InvocationTargetException) {
        null
      }
    }
  }

  companion object {
    val isSupported: Boolean =
      when {
        !isAndroid -> false
        Build.VERSION.SDK_INT >= 30 -> false // graylisted methods are banned
        else -> {
          // Fail Fast

        this.selected = callArgs[0] as String // Server selected this protocol.
        return null
      } else {
        return method.invoke(this, *callArgs)
      }
    }
  }

  companion object {
    fun buildIfSupported(): Platform? {
      val jvmVersion = System.getProperty("java.specification.version", "unknown")
      try {
        // 1.8, 9, 10, 11, 12 etc
        val version = jvmVersion.toInt()

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.internal.ws

import okio.Buffer
import okio.ByteString.Companion.encodeUtf8

object WebSocketProtocol {
  /** Magic value which must be appended to the key in a response header. */
  internal const val ACCEPT_MAGIC = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"

  /*

  /** Returns {@code true} if the table contains no mappings. */
  boolean isEmpty();

  /** Returns the number of row key / column key / value mappings in the table. */
  int size();

  /**
   * Compares the specified object with this table for equality. Two tables are equal when their
   * cell views, as returned by {@link #cellSet}, are equal.
   */
  @Override
  boolean equals(@CheckForNull Object obj);

  /**

    val contentLength = response.body.contentLength()
    return response.newBuilder()
      .body(RealResponseBody(contentType, contentLength, cacheWritingSource.buffer()))
      .build()
  }

  companion object {
    /** Combines cached headers with a network headers as defined by RFC 7234, 4.3.4. */
    private fun combine(
      cachedHeaders: Headers,
      networkHeaders: Headers,
    ): Headers {

      return when {
        isBouncyCastle() -> localhostHandshakeCertificatesWithRsa2048
        else -> localhost()
      }
    }

    val isAndroid: Boolean
      get() = Platform.Companion.isAndroid

    companion object {
      const val PROPERTY_NAME = "okhttp.platform"
      const val CONSCRYPT_PROPERTY = "conscrypt"
      const val CORRETTO_PROPERTY = "corretto"
      const val JDK9_PROPERTY = "jdk9"

 */
package okhttp3.internal.idn

import java.io.IOException
import okio.Buffer
import okio.BufferedSink
import okio.BufferedSource
import okio.ByteString
import okio.ByteString.Companion.encodeUtf8
import okio.Options

/**
 * A decoded [mapping table] that can perform the [mapping step] of IDNA processing.
 *
 * This implementation is optimized for readability over efficiency.
 *

   * this map with the more specific generic type {@code Map<K, Set<V>>}, call {@link
   * Multimaps#asMap(SetMultimap)} instead.
   */
  @Override
  Map<K, Collection<V>> asMap();

  /**
   * Compares the specified object to this multimap for equality.
   *
   * <p>Two {@code SetMultimap} instances are equal if, for each key, they contain the same values.
   * Equality does not depend on the ordering of keys or values.

   * this map with the more specific generic type {@code Map<K, Set<V>>}, call {@link
   * Multimaps#asMap(SetMultimap)} instead.
   */
  @Override
  Map<K, Collection<V>> asMap();

  /**
   * Compares the specified object to this multimap for equality.
   *
   * <p>Two {@code SetMultimap} instances are equal if, for each key, they contain the same values.
   * Equality does not depend on the ordering of keys or values.

    } catch (e: GeneralSecurityException) {
      throw AssertionError("No System TLS: $e", e) // The system has no TLS. Just give up.
    }
  }

  override fun toString(): String = javaClass.simpleName

  companion object {
    @Volatile private var platform = findPlatform()

    const val INFO = 4
    const val WARN = 5

    private val logger = Logger.getLogger(OkHttpClient::class.java.name)

    @JvmStatic