OkHttp 4.3.1 spams log, didn't find class "org.conscrypt.ConscryptHostnameVerifier" on path

A trivial use of OkHttp 4.3.1 causes some spam in the device log.

https://gist.github.com/jamesonwilliams/8ab7237083467ed3cb8680115a3e3829

This code:

Disposable disposable = Single.fromCallable(() ->
    new OkHttpClient().newCall(new Request.Builder()
        .url("https://raw.githubusercontent.com/square/okhttp/master/README.md")
        .get()
        .build())
    .execute()
    .body()
    .string()
)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(
    textView::setText,
    failure -> textView.setText(Log.getStackTraceString(failure))
);

With this OkHttp:

implementation 'com.squareup.okhttp3:okhttp:4.3.1'

Causes this spam, as the out-of-the-box default:

I: Rejecting re-init on previously-failed class java.lang.Class<okhttp3.internal.platform.ConscryptPlatform$configureTrustManager$1>: java.lang.NoClassDefFoundError: Failed resolution of: Lorg/conscrypt/ConscryptHostnameVerifier;
I:     at okhttp3.internal.platform.android.SocketAdapter okhttp3.internal.platform.android.ConscryptSocketAdapter$Companion.buildIfSupported() (ConscryptSocketAdapter.kt:62)
I:     at void okhttp3.internal.platform.AndroidPlatform.<init>() (AndroidPlatform.kt:44)
I:     at okhttp3.internal.platform.Platform okhttp3.internal.platform.AndroidPlatform$Companion.buildIfSupported() (AndroidPlatform.kt:212)
I:     at okhttp3.internal.platform.Platform okhttp3.internal.platform.Platform$Companion.findPlatform() (Platform.kt:207)
I:     at okhttp3.internal.platform.Platform okhttp3.internal.platform.Platform$Companion.access$findPlatform(okhttp3.internal.platform.Platform$Companion) (Platform.kt:169)
I:     at void okhttp3.internal.platform.Platform.<clinit>() (Platform.kt:170)
I:     at void okhttp3.OkHttpClient.<init>(okhttp3.OkHttpClient$Builder) (OkHttpClient.kt:220)
I:     at void okhttp3.OkHttpClient.<init>() (OkHttpClient.kt:212)
I:     at java.lang.String okhttp.conscrypt.issue.MainActivity.lambda$onCreate$0() (MainActivity.java:28)
I:     at java.lang.Object okhttp.conscrypt.issue.-$$Lambda$MainActivity$HFmP7xhC1oUdC6d5U0mKIdLTGns.call() (lambda:-1)
I:     at void io.reactivex.internal.operators.single.SingleFromCallable.subscribeActual(io.reactivex.SingleObserver) (SingleFromCallable.java:44)
I:     at void io.reactivex.Single.subscribe(io.reactivex.SingleObserver) (Single.java:3666)
I:     at void io.reactivex.internal.operators.single.SingleSubscribeOn$SubscribeOnObserver.run() (SingleSubscribeOn.java:89)
I:     at void io.reactivex.Scheduler$DisposeTask.run() (Scheduler.java:578)
I:     at void io.reactivex.internal.schedulers.ScheduledRunnable.run() (ScheduledRunnable.java:66)
I:     at java.lang.Object io.reactivex.internal.schedulers.ScheduledRunnable.call() (ScheduledRunnable.java:57)
I:     at void java.util.concurrent.FutureTask.run() (FutureTask.java:237)
I:     at void java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run() (ScheduledThreadPoolExecutor.java:272)
I:     at void java.util.concurrent.ThreadPoolExecutor.runWorker(java.util.concurrent.ThreadPoolExecutor$Worker) (ThreadPoolExecutor.java:1133)
I:     at void java.util.concurrent.ThreadPoolExecutor$Worker.run() (ThreadPoolExecutor.java:607)
I:     at void java.lang.Thread.run() (Thread.java:761)
I: Caused by: java.lang.ClassNotFoundException: Didn't find class "org.conscrypt.ConscryptHostnameVerifier" on path: DexPathList[[zip file "/data/app/okhttp.conscrypt.issue-2/base.apk"],nativeLibraryDirectories=[/data/app/okhttp.conscrypt.issue-2/lib/x86, /system/lib, /vendor/lib]]
I:     at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:56)
I:     at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String, boolean) (ClassLoader.java:380)
I:     at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String) (ClassLoader.java:312)
I:     at okhttp3.internal.platform.android.SocketAdapter okhttp3.internal.platform.android.ConscryptSocketAdapter$Companion.buildIfSupported() (ConscryptSocketAdapter.kt:62)
I:     at void okhttp3.internal.platform.AndroidPlatform.<init>() (AndroidPlatform.kt:44)
I:     at okhttp3.internal.platform.Platform okhttp3.internal.platform.AndroidPlatform$Companion.buildIfSupported() (AndroidPlatform.kt:212)
I:     at okhttp3.internal.platform.Platform okhttp3.internal.platform.Platform$Companion.findPlatform() (Platform.kt:207)
I:     at okhttp3.internal.platform.Platform okhttp3.internal.platform.Platform$Companion.access$findPlatform(okhttp3.internal.platform.Platform$Companion) (Platform.kt:169)
I:     at void okhttp3.internal.platform.Platform.<clinit>() (Platform.kt:170)
I:     at void okhttp3.OkHttpClient.<init>(okhttp3.OkHttpClient$Builder) (OkHttpClient.kt:220)
I:     at void okhttp3.OkHttpClient.<init>() (OkHttpClient.kt:212)
I:     at java.lang.String okhttp.conscrypt.issue.MainActivity.lambda$onCreate$0() (MainActivity.java:28)
I:     at java.lang.Object okhttp.conscrypt.issue.-$$Lambda$MainActivity$HFmP7xhC1oUdC6d5U0mKIdLTGns.call() (lambda:-1)
I:     at void io.reactivex.internal.operators.single.SingleFromCallable.subscribeActual(io.reactivex.SingleObserver) (SingleFromCallable.java:44)
I:     at void io.reactivex.Single.subscribe(io.reactivex.SingleObserver) (Single.java:3666)
I:     at void io.reactivex.internal.operators.single.SingleSubscribeOn$SubscribeOnObserver.run() (SingleSubscribeOn.java:89)
I:     at void io.reactivex.Scheduler$DisposeTask.run() (Scheduler.java:578)
I:     at void io.reactivex.internal.schedulers.ScheduledRunnable.run() (ScheduledRunnable.java:66)
I:     at java.lang.Object io.reactivex.internal.schedulers.ScheduledRunnable.call() (ScheduledRunnable.java:57)
I:     at void java.util.concurrent.FutureTask.run() (FutureTask.java:237)
I:     at void java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run() (ScheduledThreadPoolExecutor.java:272)
I:     at void java.util.concurrent.ThreadPoolExecutor.runWorker(java.util.concurrent.ThreadPoolExecutor$Worker) (ThreadPoolExecutor.java:1133)
I:     at void java.util.concurrent.ThreadPoolExecutor$Worker.run() (ThreadPoolExecutor.java:607)
I:     at void java.lang.Thread.run() (Thread.java:761)

I am not using Conscrypt. I do not include it in my Android project’s Gradle dependencies. I do agree with the view point of this StackOverflow comment from kroegerama@:

If okHttp needs conscrypt, it should reference this library instead of forcing us to add this dependency. This should not be marked as accepted. Better file a bug report on square’s github repo. – kroegerama Nov 7 '19 at 14:07

[fnuttens]

Hi! I just noticed that the error keeps occurring with OkHttp 4.8.1, along with other missing classes from bouncycastle, openjsse and android:

okhttp3.internal.platform.ConscryptPlatform$platformTrustManager$2: can't find superclass or interface org.conscrypt.ConscryptHostnameVerifier
okhttp3.internal.io.FileSystem$Companion$SYSTEM$1: can't find referenced class okhttp3.internal.io.FileSystem$DefaultImpls
okhttp3.internal.platform.BouncyCastlePlatform: can't find referenced class org.bouncycastle.jsse.BCSSLSocket
okhttp3.internal.platform.BouncyCastlePlatform: can't find referenced class org.bouncycastle.jsse.provider.BouncyCastleJsseProvider
okhttp3.internal.platform.BouncyCastlePlatform: can't find referenced class org.bouncycastle.jsse.BCSSLParameters
okhttp3.internal.platform.ConscryptPlatform: can't find referenced class org.conscrypt.ConscryptHostnameVerifier
okhttp3.internal.platform.ConscryptPlatform: can't find referenced class org.conscrypt.Conscrypt
okhttp3.internal.platform.ConscryptPlatform$Companion: can't find referenced class org.conscrypt.Conscrypt
okhttp3.internal.platform.ConscryptPlatform$platformTrustManager$2: can't find referenced class org.conscrypt.ConscryptHostnameVerifier
okhttp3.internal.platform.Jdk9Platform: can't find referenced method 'void setApplicationProtocols(java.lang.String[])' in library class javax.net.ssl.SSLParameters
okhttp3.internal.platform.Jdk9Platform: can't find referenced method 'java.lang.String getApplicationProtocol()' in library class javax.net.ssl.SSLSocket
okhttp3.internal.platform.OpenJSSEPlatform: can't find referenced class org.openjsse.javax.net.ssl.SSLParameters
okhttp3.internal.platform.OpenJSSEPlatform: can't find referenced class org.openjsse.javax.net.ssl.SSLSocket
okhttp3.internal.platform.OpenJSSEPlatform: can't find referenced class org.openjsse.net.ssl.OpenJSSE
okhttp3.internal.platform.android.Android10SocketAdapter: can't find referenced method 'java.lang.String getApplicationProtocol()' in library class javax.net.ssl.SSLSocket
okhttp3.internal.platform.android.Android10SocketAdapter: can't find referenced class android.net.ssl.SSLSockets
okhttp3.internal.platform.android.Android10SocketAdapter: can't find referenced method 'void setApplicationProtocols(java.lang.String[])' in library class javax.net.ssl.SSLParameters
okhttp3.internal.platform.android.BouncyCastleSocketAdapter: can't find referenced class org.bouncycastle.jsse.BCSSLParameters
okhttp3.internal.platform.android.BouncyCastleSocketAdapter: can't find referenced class org.bouncycastle.jsse.BCSSLSocket
okhttp3.internal.platform.android.BouncyCastleSocketAdapter$Companion$factory$1: can't find referenced class org.bouncycastle.jsse.BCSSLSocket
okhttp3.internal.platform.android.ConscryptSocketAdapter: can't find referenced class org.conscrypt.Conscrypt
okhttp3.internal.platform.android.ConscryptSocketAdapter$Companion$factory$1: can't find referenced class org.conscrypt.Conscrypt

Have we got any update on this bug?

[AndroidVironitDeveloper]

Hi! Noticed the same logs for

versionRetrofit = ‘2.9.0’ versionOkHttp = ‘4.7.2’