* characters to lowercase.
     */
    open fun canonicalize(s: String): String = s
  }

  /** Tests integration between HttpUrl and the host platform's built-in URL classes, if any. */
  open class Platform {
    open fun test(
      codePoint: Int,
      codePointString: String,
      encoding: Encoding,
      component: Component,
    ) {
    }
  }

- Kubeadm: fix a bug in the host memory detection code on 32bit Linux platforms ([#97403](https://github.com/kubernetes/kubernetes/pull/97403), [@abelbarrera15](https://github.com/abelbarrera15)) [SIG Cluster Lifecycle]

import okhttp3.internal.platform.Android10Platform
import okhttp3.internal.platform.AndroidPlatform
import okhttp3.internal.platform.BouncyCastlePlatform
import okhttp3.internal.platform.ConscryptPlatform
import okhttp3.internal.platform.Jdk8WithJettyBootPlatform
import okhttp3.internal.platform.Jdk9Platform
import okhttp3.internal.platform.OpenJSSEPlatform
import okhttp3.internal.platform.Platform

import okhttp3.internal.applyConnectionSpec
import okhttp3.internal.platform.Platform.Companion.isAndroid
import okhttp3.testing.PlatformRule
import okhttp3.testing.PlatformVersion.majorVersion
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.extension.RegisterExtension

class ConnectionSpecTest {
  @RegisterExtension
  val platform = PlatformRule()

  @Test
  fun noTlsVersions() {

      }

      if (platform != null) {
        Platform.resetForTests(platform)
      } else {
        Platform.resetForTests()
      }

      if (requiredPlatformName != null) {
        System.err.println("Running with ${Platform.get().javaClass.simpleName}")
      }
    }

    fun resetPlatform() {
      if (platform != null) {
        Platform.resetForTests()
      }
    }

  }

  /** Guard against the default value changing by accident.  */
  @Test
  fun defaultPrefix() {
    assertThat(Platform().getPrefix()).isEqualTo("OkHttp")
  }

  @Test
  fun testToStringIsClassname() {
    assertThat(Platform().toString()).isEqualTo("Platform")
  }

  @Test
  fun testNotAndroid() {
    platform.assumeNotAndroid()

    // This is tautological so just confirms that it runs.

import org.junit.jupiter.engine.JupiterTestEngine
import org.junit.platform.console.options.Theme
import org.junit.platform.engine.DiscoverySelector
import org.junit.platform.engine.TestDescriptor
import org.junit.platform.engine.TestEngine
import org.junit.platform.engine.discovery.DiscoverySelectors.selectClass
import org.junit.platform.launcher.Launcher
import org.junit.platform.launcher.LauncherDiscoveryRequest

permissions:
  contents: read

jobs:
  # Label of the container job
  sqlite:
    strategy:
      matrix:
        go: ['1.22', '1.21', '1.20']
        platform: [ubuntu-latest] # can not run in windows OS
    runs-on: ${{ matrix.platform }}

    steps:
    - name: Set up Go 1.x
      uses: actions/setup-go@v4
      with:
        go-version: ${{ matrix.go }}

import org.junit.jupiter.api.extension.RegisterExtension

class Jdk9PlatformTest {
  @RegisterExtension
  val platform = PlatformRule()

  @Test
  fun buildsWhenJdk9() {
    platform.assumeJdk9()
    assertThat(buildIfSupported()).isNotNull()
  }

  @Test
  fun buildsWhenJdk8() {
    platform.assumeJdk8()
    try {
      SSLSocket::class.java.getMethod("getApplicationProtocol")

import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.http2.Header
import okhttp3.internal.http2.Http2Connection
import okhttp3.internal.http2.Http2Stream
import okhttp3.internal.platform.Platform
import okhttp3.tls.internal.TlsUtil.localhost
import okio.buffer
import okio.source

/** A basic HTTP/2 server that serves the contents of a local directory.  */
class Http2Server(