checkNotNull(hostPortString);
    String host;
    String portString = null;
    boolean hasBracketlessColons = false;

    if (hostPortString.startsWith("[")) {
      String[] hostAndPort = getHostAndPortFromBracketedHost(hostPortString);
      host = hostAndPort[0];
      portString = hostAndPort[1];
    } else {
      int colonPos = hostPortString.indexOf(':');

          <description>
            The proxy password.
          </description>
          <type>String</type>
        </field>
        <field xml.tagName="port">
          <name>portString</name>
          <version>1.0.0+</version>
          <description>
            The proxy port. Note: While the type of this field is {@code String} for technical

      input: String,
      pos: Int,
      limit: Int,
    ): Int =
      try {
        // Canonicalize the port string to skip '\n' etc.
        val portString = input.canonicalize(pos = pos, limit = limit, encodeSet = "")
        val i = portString.toInt()
        if (i in 1..65535) i else -1
      } catch (_: NumberFormatException) {
        -1 // Invalid port.
      }
  }

  companion object {

import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody.Companion.toRequestBody

class PostString {
  private val client = OkHttpClient()

  fun run() {
    val postBody =
      """
      |Releases
      |--------
      |
      | * _1.0_ May 6, 2013
      | * _1.1_ June 15, 2013

package okhttp3.recipes;

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

public final class PostString {
  public static final MediaType MEDIA_TYPE_MARKDOWN
      = MediaType.get("text/x-markdown; charset=utf-8");

  private final OkHttpClient client = new OkHttpClient();

  public void run() throws Exception {

 [PostStringJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PostString.java
 [PostStringKotlin]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/kt/PostString.kt
 [PostStreamingJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PostStreaming.java