![Events Diagram](../assets/images/******@****.***)

Here’s a [sample event listener](https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PrintEventsNonConcurrent.java) that prints each event with a timestamp.

```java

1. Add an Emulator named `pixel5`, if you don't already have one

```
$ sdkmanager --install "system-images;android-29;google_apis;x86"
$ echo "no" | avdmanager --verbose create avd --force --name "pixel5" --device "pixel" --package "system-images;android-29;google_apis;x86" --tag "google_apis" --abi "x86"
```

2. Run an Emulator using Android Studio or from command line.

```

import org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
import org.graalvm.nativeimage.hosted.Feature
import org.graalvm.nativeimage.hosted.RuntimeResourceAccess

/**
 * Automatic configuration of OkHttp for native images.
 *
 * Currently, includes all necessary resources.
 */
class OkHttpFeature : Feature {
  @IgnoreJRERequirement
  override fun beforeAnalysis(access: Feature.BeforeAnalysisAccess?) {

1. Add an Emulator named `pixel5`, if you don't already have one

```
$ sdkmanager --install "system-images;android-29;google_apis;x86"
$ echo "no" | avdmanager --verbose create avd --force --name "pixel5" --device "pixel" --package "system-images;android-29;google_apis;x86" --tag "google_apis" --abi "x86"
```

2. Run an Emulator using Android Studio or from command line.

```

 *
 * ```java
 * HttpUrl url = HttpUrl.parse("https://twitter.com/search?q=cute%20%23puppies&f=images");
 * for (int i = 0, size = url.querySize(); i < size; i++) {
 *   System.out.println(url.queryParameterName(i) + ": " + url.queryParameterValue(i));
 * }
 * ```
 *
 * which prints:
 *
 * ```
 * q: cute #puppies
 * f: images
 * ```
 *

 * [Flipper](https://fbflipper.com/): A desktop debugging platform for mobile developers.
 * [Fresco](https://github.com/facebook/fresco): An Android library for managing images and the memory they use.
 * [Glide](https://github.com/bumptech/glide): An image loading and caching library for Android focused on smooth scrolling.
 * [GoogleAppEngineOkHttp](https://github.com/apkelly/GoogleAppEngineOkHttp): An OkHttp Call that works on Google App Engine.

```kotlin
testImplementation("com.squareup.okhttp3:mockwebserver:4.12.0")
```

GraalVM Native Image
--------------------

Building your native images with Graal https://www.graalvm.org/ should work automatically.
This is not currently in a final released version, so `5.0.0-alpha.2` should be used.
Please report any bugs or workarounds you find.

![Interceptors Diagram](../assets/images/******@****.***)

### Application Interceptors

Interceptors are registered as either _application_ or _network_ interceptors. We'll use the `LoggingInterceptor` defined above to show the difference.

 *  Fix: Use plus `+` instead of `%20` to encode space characters in `FormBody`. This was a
    longstanding bug in OkHttp. The fix makes OkHttp consistent with major web browsers.
 *  Fix: Don't crash if Conscrypt returns a null version.
 *  Fix: Include the public suffix data as a resource in GraalVM native images.
 *  Fix: Fail fast when the cache is corrupted.
 *  Fix: Fail fast when a private key cannot be encoded.

import java.net.Proxy
import java.net.Proxy.Type.SOCKS
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.containers.BasicMockServerTest.Companion.MOCKSERVER_IMAGE
import org.junit.jupiter.api.Test
import org.mockserver.client.MockServerClient
import org.mockserver.model.HttpRequest.request
import org.mockserver.model.HttpResponse.response