return try {
    toLong()
  } catch (_: NumberFormatException) {
    defaultValue
  }
}

/**
 * Returns this as a non-negative integer, or 0 if it is negative, or [Int.MAX_VALUE] if it is too
 * large, or [defaultValue] if it cannot be parsed.
 */
internal fun String?.toNonNegativeInt(defaultValue: Int): Int {
  try {
    val value = this?.toLong() ?: return defaultValue
    return when {

Because the release includes breaking API changes, we're changing the project's
package name from `com.squareup.okhttp` to `okhttp3`. This should make it
possible for large applications to migrate incrementally. The Maven group ID
is now `com.squareup.okhttp3`. For an explanation of this strategy, see Jake
Wharton's post, [Java Interoperability Policy for Major Version
Updates][major_versions].

    used `Throwable`.
 *  Fix: Fixed a caching bug where we weren't storing rewritten request headers
    like `Accept-Encoding`.
 *  Fix: Fixed bugs in handling the SPDY window size. This was stalling certain
    large downloads
 *  Update the language level to Java 7. (OkHttp requires Android 2.3+ or Java 7+.)

## Version 2.0.0-RC2

_2014-06-11_

This update fixes problems in 2.0.0-RC1. Read the 2.0.0-RC1 changes for

  val clientTestRule = OkHttpClientTestRule()
  private lateinit var server: MockWebServer
  private lateinit var client: OkHttpClient

  @BeforeEach
  fun setUp() {
    // Sockets on some platforms can have large buffers that mean writes do not block when
    // required. These socket factories explicitly set the buffer sizes on sockets created.
    server = MockWebServer()
    server.serverSocketFactory =

    val newLimit = if (header.length != -1L) byteCount + header.length else -1L
    if (pushedLimit != -1L && newLimit > pushedLimit) {
      throw ProtocolException("enclosed object too large")
    }

    limit = newLimit
    constructed = header.constructed
    if (name != null) path += name
    try {
      val result = block(header)

      // The object processed bytes beyond its range.

  private val listRead = AtomicBoolean(false)

  /** Used for concurrent threads reading the list for the first time. */
  private val readCompleteLatch = CountDownLatch(1)

  // The lists are held as a large array of UTF-8 bytes. This is to avoid allocating lots of strings
  // that will likely never be used. Each rule is separated by '\n'. Please see the
  // PublicSuffixListGenerator class for how these lists are generated.

 * it returns is "s". For values in [-499..499] this returns "  0 µs".
 *
 * The returned string attempts to be column-aligned to 6 characters. For negative and large values
 * the returned string may be longer.
 */
fun formatDuration(ns: Long): String {
  val s =
    when {
      ns <= -999_500_000 -> "${(ns - 500_000_000) / 1_000_000_000} s "

    this.cancelMode = mode.first
    this.connectionType = mode.second

    if (connectionType == H2) {
      platform.assumeHttp2Support()
    }

    // Sockets on some platforms can have large buffers that mean writes do not block when
    // required. These socket factories explicitly set the buffer sizes on sockets created.
    server = MockWebServer()
    server.serverSocketFactory =

        } else {
          val dynamicTableIndex = dynamicTableIndex(index - STATIC_HEADER_TABLE.size)
          if (dynamicTableIndex < 0 || dynamicTableIndex >= dynamicTable.size) {
            throw IOException("Header index too large ${index + 1}")
          }
          headerList += dynamicTable[dynamicTableIndex]!!
        }
      }

      // referencedHeaders is relative to nextHeaderIndex + 1.

Download a file, print its headers, and print its response body as a string.

The `string()` method on response body is convenient and efficient for small documents. But if the response body is large (greater than 1 MiB), avoid `string()` because it will load the entire document into memory. In that case, prefer to process the body as a stream.

=== ":material-language-kotlin: Kotlin"
    ```kotlin