java.lang.ExceptionInInitializerError On Android 7

[yuyanghe]

Hi We use OkHttp3.3.1 in our project. than I found some crash on Some Android 7.
it crash at ConnectionSpec$Builder.tlsVersions.
ths crash log is:
java.lang.ExceptionInInitializerError
at okhttp3.OkHttpClient.(Unknown Source)
at okhttp3.OkHttpClient.y(Unknown Source)
at okhttp3.OkHttpClient$Builder.(Unknown Source)
at com.gf.mobile.common.h.(Unknown Source)
at com.gf.mobile.common.h.b(Unknown Source)
at com.gf.mobile.common.h.a(Unknown Source)
at com.gf.mobile.control.a.l$1.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:776)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'okhttp3.ConnectionSpec$Builder okhttp3.ConnectionSpec$Builder.tlsVersions(okhttp3.TlsVersion[])' on a null object reference
at okhttp3.ConnectionSpec.(Unknown Source)
... 10 more

[swankjesse]

Can you provide more of the exception?

[yzbzz]

I have also encountered this problem:
java.lang.ExceptionInInitializerError at okhttp3.internal.Util.a(Util.java:187) at okhttp3.OkHttpClient.<clinit>(OkHttpClient.java:121) at okhttp3.OkHttpClient$Builder.<init>(OkHttpClient.java:443) at com.ddu.base.network.okhttp.OKHttpManager.d(OKHttpManager.java:102) at com.ddu.base.network.okhttp.OKHttpManager.<init>(OKHttpManager.java:40) at com.ddu.base.network.okhttp.OKHttpManager.<init>(OKHttpManager.java:35) at com.ddu.base.network.okhttp.OKHttpManager$SingletonHolder.<clinit>(OKHttpManager.java:63) at com.ddu.base.network.okhttp.OKHttpManager$SingletonHolder.a(OKHttpManager.java:62) at com.ddu.base.network.okhttp.OKHttpManager.a(OKHttpManager.java:44) at com.ddu.base.network.okhttp.request.OKHttpRequest.<init>(OKHttpRequest.java:44) at com.ddu.base.network.okhttp.request.OKHttpGetRequest.<init>(OKHttpGetRequest.java:23) at com.ddu.base.network.okhttp.request.OKHttpGetRequest$Builder.a(OKHttpGetRequest.java:30) at com.ddu.base.api.OKHttpUtils.a(OKHttpUtils.java:49) at com.ddu.base.api.OKHttpUtils.a(OKHttpUtils.java:104) at com.ddu.base.api.dduHttpUtils.c(dduHttpUtils.java:163) at com.ddu.base.api.dduHttpUtils.b(dduHttpUtils.java:104) at com.ddu.base.api.dduHttpUtils.d(dduHttpUtils.java:72) at com.dduOwner.yc.activity.LogoActivity.d(LogoActivity.java:217) at com.dduOwner.yc.activity.LogoActivity.c(LogoActivity.java:208) at com.dduOwner.yc.activity.LogoActivity.onCreate(LogoActivity.java:108) at android.app.Activity.performCreate(Activity.java:6912) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1126) at cn.jiguang.a.a.c.a.a.d.callActivityOnCreate(Unknown Source) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2877) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2985) at android.app.ActivityThread.-wrap14(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1635) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6692) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1468) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1358) Caused by: java.lang.NullPointerException: source == null at okhttp3.ResponseBody.a(ResponseBody.java:215) at okhttp3.ResponseBody.a(ResponseBody.java:209) at okhttp3.internal.Util.<clinit>(Util.java:48) ... 33 more ,ver:4.7.0,sdk24,phone:hero2qltechn

There should be a problem with this line:
this.networkInterceptors = Util.immutableList(builder.networkInterceptors);
OkHttpClient(Builder builder) { this.dispatcher = builder.dispatcher; this.proxy = builder.proxy; this.protocols = builder.protocols; this.connectionSpecs = builder.connectionSpecs; this.interceptors = Util.immutableList(builder.interceptors); this.networkInterceptors = Util.immutableList(builder.networkInterceptors); this.proxySelector = builder.proxySelector; this.cookieJar = builder.cookieJar; this.cache = builder.cache; this.internalCache = builder.internalCache; this.socketFactory = builder.socketFactory;

device name: Samsung Galaxy S7 edge
android Version: Android 7.0
model: SM-G9350

[yuyanghe]

I have solve this problem. it caused by mutiDex. If you use Goolge MultiDex. please don't use MultiDex.install().if android sdk > 21

[yzbzz]

my configuration:
defaultConfig {
versionName "4.7.0"
versionCode 56
minSdkVersion 17
targetSdkVersion 25
multiDexEnabled = true
}

[yzbzz]

@yuyanghe Thank you for your answer. But my minSdkVersion is 17, What should we do?

[swankjesse]

Not sure what action for us to take on this. If there’s a specific bug, please provide an executable test case.

[PGMacDesign]

I know this is an older issue, but I just inherited some legacy code that had this verbatim same issue and I resolved it on my end.

The core of the problem is that a NullPointerException is being thrown here:

Caused by: java.lang.NullPointerException: Attempt to get length of null array
        at okhttp3.internal.tls.BasicTrustRootIndex.<init>(BasicTrustRootIndex.java:32)
        at okhttp3.internal.platform.Platform.buildTrustRootIndex(Platform.java:288)
        at okhttp3.internal.platform.AndroidPlatform.buildTrustRootIndex(AndroidPlatform.java:280)
        at okhttp3.internal.platform.Platform.buildCertificateChainCleaner(Platform.java:172)
        at okhttp3.internal.platform.AndroidPlatform.buildCertificateChainCleaner(AndroidPlatform.java:230)
        at okhttp3.internal.tls.CertificateChainCleaner.get(CertificateChainCleaner.java:41)
        at okhttp3.OkHttpClient$Builder.sslSocketFactory(OkHttpClient.java:694)

This is being caused by the need (in this particular call) to allow all Certificates, in which I was using this code to generate the X509TrustManager in the builder:

                X509TrustManager trustManager = new X509TrustManager() {
                    public void checkClientTrusted(X509Certificate[] xcs, String string)
                            throws CertificateException {}
                    public void checkServerTrusted(X509Certificate[] xcs, String string)
                            throws CertificateException {}
                    public X509Certificate[] getAcceptedIssuers() {
                        return null;
                    }
                };

This is what a large number of StackOverflow posts recommend doing for this situation, but returning null in the getAcceptedIssuers() is why this is occurring. To fix this, simply change the code above to:

                X509TrustManager trustManager = new X509TrustManager() {
                    public void checkClientTrusted(X509Certificate[] xcs, String string)
                            throws CertificateException {}
                    public void checkServerTrusted(X509Certificate[] xcs, String string)
                            throws CertificateException {}
                    public X509Certificate[] getAcceptedIssuers() {
                        return new X509Certificate[]{};
                    }
                };

I wrote up a StackOverflow Q/A here in case anyone needs to read it:
https://stackoverflow.com/q/57025434/2480714

[yschimke]

Please link to the Stackoverflow question

[PGMacDesign]

Sure, edited and included, thank you for reminding me.