NetworkOnMainThreadException from ChangeTracker crashing Android app

[Suresh Joshi]

Hi all, I wasn't sure whether this goes in the forum or on Github, but I'll try here.

We're using 'com.couchbase.lite:couchbase-lite-android:1.0.1-19', Android Studio 0.8.6, gradle 0.12.2, and I'm testing on a Nexus 7 (version 4.4.3, build KTU84L)

I'm getting a lot of NetworkOnMainThreadExceptions from the CBL ChangeTracker (stack trace below). I don't know if this is an issue with CBL or how we're using it (a few live queries under the hood). I saw buried in a Github issue mention of this from a few months ago, and something about Puller.goOnline and Puller.goOffline,and needing to do a db==null check.

Please advise, thanks!

-SJ

08-25 14:26:22.718  12203-12203/com.pushstrength.android E/AndroidRuntime﹕ FATAL EXCEPTION: main

    Process: com.pushstrength.android, PID: 12203

    java.lang.RuntimeException: Error receiving broadcast Intent { act=android.net.conn.CONNECTIVITY_CHANGE flg=0x4000010 (has extras) } in com.couchbase.lite.android.AndroidNetworkReachabilityManager$ConnectivityBroadcastReceiver@424eb610

            at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:769)

            at android.os.Handler.handleCallback(Handler.java:733)

            at android.os.Handler.dispatchMessage(Handler.java:95)

            at android.os.Looper.loop(Looper.java:136)

            at android.app.ActivityThread.main(ActivityThread.java:5001)

            at java.lang.reflect.Method.invokeNative(Native Method)

            at java.lang.reflect.Method.invoke(Method.java:515)

            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)

            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)

            at dalvik.system.NativeStart.main(Native Method)

     Caused by: android.os.NetworkOnMainThreadException

            at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145)

            at com.android.org.conscrypt.OpenSSLSocketImpl.close(OpenSSLSocketImpl.java:1009)

            at org.apache.http.impl.SocketHttpClientConnection.shutdown(SocketHttpClientConnection.java:183)

            at org.apache.http.impl.conn.DefaultClientConnection.shutdown(DefaultClientConnection.java:150)

            at org.apache.http.impl.conn.AbstractPooledConnAdapter.shutdown(AbstractPooledConnAdapter.java:169)

            at org.apache.http.impl.conn.AbstractClientConnAdapter.abortConnection(AbstractClientConnAdapter.java:378)

            at org.apache.http.client.methods.HttpRequestBase.abort(HttpRequestBase.java:159)

            at com.couchbase.lite.replicator.ChangeTracker.stop(ChangeTracker.java:423)

            at com.couchbase.lite.replicator.Puller.goOffline(Puller.java:798)

            at com.couchbase.lite.replicator.Replication.networkUnreachable(Replication.java:1609)

            at com.couchbase.lite.NetworkReachabilityManager.notifyListenersNetworkUneachable(NetworkReachabilityManager.java:58)

            at com.couchbase.lite.android.AndroidNetworkReachabilityManager$ConnectivityBroadcastReceiver.onReceive(AndroidNetworkReachabilityManager.java:84)

            at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:759)

            at android.os.Handler.handleCallback(Handler.java:733)

            at android.os.Handler.dispatchMessage(Handler.java:95)

            at android.os.Looper.loop(Looper.java:136)

            at android.app.ActivityThread.main(ActivityThread.java:5001)

            at java.lang.reflect.Method.invokeNative(Native Method)

            at java.lang.reflect.Method.invoke(Method.java:515)

            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)

            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)

            at dalvik.system.NativeStart.main(Native Method)

[Traun Leyden]

This sounds like https://github.com/couchbase/couchbase-lite-java-core/issues/274

Would you mind posting your details mentioned above to the ticket?

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[Suresh Joshi]

Thanks, just did.