Events
======

Events allow you to capture metrics on your application’s HTTP calls. Use events to monitor:

 * The size and frequency of the HTTP calls your application makes. If you’re making too many calls, or your calls are too large, you should know about it!
 * The performance of these calls on the underlying network. If the network’s performance isn’t sufficient, you need to either improve the network or use less of it.

### EventListener

        .head()
        .build()

    client.newCall(request).execute().use {
      assertEquals(204, it.code)
    }
  }

  @Test
  fun staleConnectionNotReusedForNonIdempotentRequest() {
    // Capture the connection so that we can later make it stale.
    var connection: RealConnection? = null
    client =
      client.newBuilder()
        .addNetworkInterceptor(
          Interceptor { chain ->

      return if (matchResult != null) {
        matchResult.groupValues[1].replace(" ", "")
      } else {
        null
      }
    }

    override fun secureConnectStart(call: Call) {
      // Register to capture "Produced ClientHello handshake message".
      currentThread = Thread.currentThread()
      logger.addHandler(loggerHandler)
    }

    override fun secureConnectEnd(
      call: Call,

          throw t
        } finally {
          client.dispatcher.finished(this)
        }
      }
    }
  }

  internal class CallReference(
    referent: RealCall,
    /**
     * Captures the stack trace at the time the Call is executed or enqueued. This is helpful for
     * identifying the origin of connection leaks.
     */
    val callStackTrace: Any?,
  ) : WeakReference<RealCall>(referent)

    client =
      OkHttpClient.Builder()
        .trustMockServer()
        .dispatcher(Dispatcher(newVirtualThreadPerTaskExecutor()))
        .build()

    executor = newVirtualThreadPerTaskExecutor()

    // Capture non-deterministic but probable sysout warnings of pinned threads
    // https://docs.oracle.com/en/java/javase/21/core/virtual-threads.html
    System.setOut(PrintStream(capturedOut))
  }

  @AfterEach

      client.newCall(request).execute()
    }
  }

  @Test
  fun interceptorGetsHttp2() {
    platform.assumeHttp2Support()
    enableProtocol(Protocol.HTTP_2)

    // Capture the protocol as it is observed by the interceptor.
    val protocolRef = AtomicReference<Protocol?>()
    val interceptor =
      Interceptor { chain: Interceptor.Chain ->

        # Roll the args list around exactly as many times as the number of
        # args, so each arg winds up back in the position where it started, but
        # possibly modified.
        #
        # NB: a `for` loop captures its iteration list before it begins, so
        # changing the positional parameters here affects neither the number of
        # iterations, nor the values presented in `arg`.
        shift                   # remove old arg

```
$ ./gradlew okcurl:nativeImage
$ ./okcurl/build/graal/okcurl https://cash.app/robots.txt
```

This is our first release that supports GraalVM. Our code on this platform is less mature than JVM
and Android! Please report any issues you encounter: we'll fix them urgently.

 *  Fix: Attempt to read the response body even if the server canceled the request. This will cause

nasushiobara.tochigi.jp nat.tn natal.br national.museum nationalfirearms.museum nationalheritage.museum nativeamerican.museum natori.miyagi.jp natura natural.bo naturalhistory.museum naturalhistorymuseum.museum naturalsciences.museum naturbruksgymn.se nature.museum naturhistorisches.museum natuurwetenschappen.museum naumburg.museum naustdal.no naval.museum navigation.aero navoi.su navuotna.no navy nayoro.hokkaido.jp nb.ca nba nc nc.tr nc.us nd.us ne ne.jp ne.ke ne.kr ne.pw ne.tz ne.ug ne.us neat-url.com...

museumvereniging.museum
music.museum
national.museum
nationalfirearms.museum
nationalheritage.museum
nativeamerican.museum
naturalhistory.museum
naturalhistorymuseum.museum
naturalsciences.museum
nature.museum
naturhistorisches.museum
natuurwetenschappen.museum
naumburg.museum
naval.museum
nebraska.museum
neues.museum
newhampshire.museum
newjersey.museum
newmexico.museum
newport.museum