FATAL EXCEPTION: OkHttp Dispatcher

Question

I'm using the OkHttp library in my android app to make web requests to a weather API. I've already implemented my code and I'm getting a FATAL EXCEPTION when doing the request.

I've already added INTERNET permissions in my manifest too.

MainActivity.java:

private CurrentWeather currentWeather;

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        final ActivityMainBinding binding = DataBindingUtil.setContentView(MainActivity.this, R.layout.activity_main);

        String apiKey = "xxx";
        double latitude = 37.8267;
        double longitude = -122.4233;
        String forecastURL = String.format("https://api.darksky.net/forecast/%s/%f,%f", apiKey, latitude, longitude);

        if (isNetworkAvailable()) {
            OkHttpClient client = new OkHttpClient();

            Request request = new Request.Builder()
                    .url(forecastURL)
                    .build();

            Call call = client.newCall(request);
            call.enqueue(new Callback() {
                @Override
                public void onFailure(Call call, IOException e) {

                }

                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    try {
                        Log.v(TAG, response.body().string());
                        String jsonData = response.body().string();
                        if (response.isSuccessful()) {
                            currentWeather = getCurrentDetails(jsonData);
                        }

                    } catch (IOException e) {
                        Log.e(TAG, e.getLocalizedMessage());
                    } catch (JSONException e) {
                        Log.e(TAG, e.getLocalizedMessage());
                    }
                }
            });
        }
        Log.d(TAG, "Main UI code is running");
    }

    private CurrentWeather getCurrentDetails(String jsonData) throws JSONException {

        JSONObject forecast = new JSONObject(jsonData);
        String timezone = forecast.getString("timezone");

        JSONObject currently = forecast.getJSONObject("currently");

        String icon = currently.getString("icon");
        String locationLabel = "Alcatraz Island";
        String summary = currently.getString("summary");
        long time = currently.getLong("time");
        double humidity = currently.getDouble("humidity");
        double precipProbability = currently.getDouble("precipProbability");
        double temperature = currently.getDouble("temperature");

        return new CurrentWeather(locationLabel, icon, time, temperature, humidity, precipProbability, summary, timezone);
    }

Gradle:

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.squareup.okhttp3:okhttp:3.12.0'

    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

Then, here's the exception I'm getting:

2018-12-04 20:55:49.969 3314-3330/com.test.starmie E/AndroidRuntime: FATAL EXCEPTION: OkHttp Dispatcher
    Process: com.test.starmie, PID: 3314
    java.lang.IllegalStateException: closed
        at okio.RealBufferedSource.rangeEquals(RealBufferedSource.java:407)
        at okio.RealBufferedSource.rangeEquals(RealBufferedSource.java:401)
        at okhttp3.internal.Util.bomAwareCharset(Util.java:471)
        at okhttp3.ResponseBody.string(ResponseBody.java:175)
        at com.test.starmie.MainActivity$1.onResponse(MainActivity.java:66)
        at okhttp3.RealCall$AsyncCall.execute(RealCall.java:206)
        at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
        at java.lang.Thread.run(Thread.java:761)

I don't know what to do at this point. I've read around and found a few posts regarding this topic. From what I've gathered, UI changes must be made in the runOnUiThread() block. But I'm not making any UI changes here in my code and I still get the exception.

I've also already tried putting my JSON parsing code in the runOnUiThread() and got the same FATAL EXCEPTION result. Anyone got any ideas?

I'm actually following an android online course and the instructor uses OkHttp in this project. — fishhau, Dec 04 '18 at 13:05

score 45 · Accepted Answer · answered Dec 04 '18 at 13:22

45

Response body can be consumed only once. You make it twice

Log.v(TAG, response.body().string());
String jsonData = response.body().string();

More info in docs

answered Dec 04 '18 at 13:22

Stanislav Bondar

6,056
2
34
46

Thanks for the info. I removed my log call and it's working flawlessly now! – fishhau Dec 04 '18 at 13:28

score 11 · Answer 2 · answered Dec 24 '19 at 10:44

This is caused by using different versions of OkHttp. Ensure all your dependencies from com.squareup.okhttp3 are using the same version.

example:

implementation 'com.squareup.okhttp3:logging-interceptor:3.8.0'
implementation 'com.squareup.okhttp3:okhttp:3.8.0'

score 10 · Answer 3 · answered Jan 21 '20 at 17:30

I had the same issue and got it resolved by switching to Java 8 compatibility. Add compileOptions under your build.gradle file.

android {

    ...
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

score 5 · Answer 4 · answered Mar 26 '21 at 12:17

I tried all answers, even migrate okhttp from 3.14.9 to 4.4.0, but none worked for my case: I had a response interceptor inherited from Interceptor,

class ResponseInterceptor : Interceptor {
    @Throws(IOException::class)
    override fun intercept(chain: Interceptor.Chain): Response {
        val request = chain.request()
        val response = chain.proceed(request)
        if (!isSuccessful(response.code)) {
            handleErrorResponse(response)
        }
        return response
    }

    private fun handleErrorResponse(response: Response) {
        throw ApiException(response.body?.string()) // only called one time!
    }
}

I finally fixed it by change

data class ApiException(val errorMessage: String?) : Exception(errorMessage)
// `Exception` is `typealias Exception = java.lang.Exception`

to

import java.io.IOException
data class ApiException(val errorMessage: String?) : IOException(errorMessage)

Really don't know why java.lang.Exception caused such issue.

Thank you, this is what it got it fixed for me. I used RuntimeException but the error was the same until I changed to IOException. Strange... — kodartcha, May 02 '23 at 11:36

score 5 · Answer 5 · answered Jul 30 '21 at 10:23

in my case, i already called response.body.string() once but still got the crash. got it fixed with

ResponseBody responseBodyCopy = response.peekBody(Long.MAX_VALUE);
responseBodyCopy.string();

from this comment on github : https://github.com/square/okhttp/issues/1240#issuecomment-330813274

score 1 · Answer 6 · answered Jul 18 '19 at 06:06

1

Assign the response to a variable then you will be able to reuse it

answered Jul 18 '19 at 06:06

Hillary Bett

66
2

score 0 · Answer 7 · edited Apr 27 '22 at 20:23

0

dependencies {
 implementation "com.squareup.okhttp3:okhttp:4.2.1"
 compile "com.squareup.okhttp3:logging-interceptor:4.2.1"
 compile "com.squareup.okhttp3:okhttp-urlconnection:4.2.1"
}

edited Apr 27 '22 at 20:23

Leonardo Alves Machado

2,747
10
38
53

answered Apr 26 '22 at 17:28

GUGAN RAJ

101
7

100% WORKING add-in build.gradle android folder – GUGAN RAJ Apr 26 '22 at 17:29

FATAL EXCEPTION: OkHttp Dispatcher

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