* immutable.
 */
class Request internal constructor(
  builder: Builder,
) {
  @get:JvmName("url")
  val url: HttpUrl = checkNotNull(builder.url) { "url == null" }

  @get:JvmName("method")
  val method: String = builder.method

  @get:JvmName("headers")
  val headers: Headers = builder.headers.build()

  @get:JvmName("body")
  val body: RequestBody? = builder.body

  @get:JvmName("cacheUrlOverride")

  public static <E> Builder<E> orderedBy(Comparator<E> comparator) {
    return new Builder<>(comparator);
  }

  /**
   * Returns a builder that creates immutable sorted sets whose elements are ordered by the reverse
   * of their natural ordering.
   */
  public static <E extends Comparable<?>> Builder<E> reverseOrder() {
    return new Builder<>(Collections.reverseOrder());
  }

  /**

    assumeNetwork()

    val request = Request.Builder().url("https://mozilla.org/robots.txt").build()

    client.newCall(request).execute().use {
      assertThat(it.protocol).isEqualTo(Protocol.HTTP_2)
      assertThat(it.handshake!!.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    }
  }

  @Test
  @Disabled
  fun testGoogle() {
    assumeNetwork()

    val request = Request.Builder().url("https://google.com/robots.txt").build()

    val url = "https://dns.cloudflare.com/.not-so-well-known/run-dmc-query".toHttpUrl()
    val badProviders =
      listOf(
        DnsOverHttps
          .Builder()
          .client(bootstrapClient)
          .url(url)
          .post(true)
          .build(),
      )
    runBatch(badProviders, names)
    println("cached first run\n****************\n")
    names = listOf("google.com", "graph.facebook.com")

responses.

Note that zstd is not used for sending requests.

```java
OkHttpClient client = new OkHttpClient.Builder()
  .addInterceptor(ZstdInterceptor.INSTANCE)
  .build();
```

```kotlin
implementation("com.squareup.okhttp3:okhttp-zstd:0.0.0")
```

    val pool = factory.newConnectionPool()
    val poolApi = ConnectionPool(pool)
    val c1 = factory.newConnection(pool, routeA1, 50L)
    val client =
      OkHttpClient
        .Builder()
        .connectionPool(poolApi)
        .build()
    val call = client.newCall(Request(addressA.url)) as RealCall
    call.enterNetworkInterceptorExchange(call.request(), true, factory.newChain(call))

            RemoteRepository.Builder builder = new RemoteRepository.Builder(remoteRepo);
            builder.setAuthentication(session.getAuthenticationSelector().getAuthentication(remoteRepo));
            builder.setProxy(session.getProxySelector().getProxy(remoteRepo));
            remoteRepo = builder.build();
        }
        request.setRepository(remoteRepo);

# and used as $GOROOT_BOOTSTRAP to bootstrap a local build.
#
# Only changes that have been committed to Git (at least locally,
# not necessary reviewed and submitted to master) are included in the tree.
#
# See also golang.org/x/build/cmd/genbootstrap, which is used
# to generate bootstrap tgz files for builders.

set -e

if [ "$GOOS" = "" -o "$GOARCH" = "" ]; then

        private int terminateAfter = 0;

        public void build(SearchRequestBuilder builder) {
            if (explain != null) {
                builder.setExplain(explain);
            }
            if (minScore != null) {
                builder.setMinScore(minScore);
            }
            if (preference != null) {
                builder.setPreference(preference);
            }

 * found, the existing values are replaced.
 */
internal fun Headers.Builder.commonSet(
  name: String,
  value: String,
) = apply {
  headersCheckName(name)
  headersCheckValue(value, name)
  removeAll(name)
  commonAddLenient(name, value)
}

/** Equivalent to `build().get(name)`, but potentially faster. */
internal fun Headers.Builder.commonGet(name: String): String? {