NetworkOnMainThread exception can occur when reconnecting to an IoT session if it needs to get getCredentials() from the API. This occurs on: the latest IoT SDK.
This is because scheduleReconnect() posts to the MainThread when scheduling the reconnections.
(new Handler(Looper.getMainLooper())).postDelayed(new Runnable() {
@Override
public void run() {
if (mqttClient != null && !mqttClient.isConnected()) {
reconnectToSession();
}
}}, MILLIS_IN_ONE_SECOND * currentReconnectRetryTime);
android.os.NetworkOnMainThreadException
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1273)
at java.net.InetAddress.lookupHostByName(InetAddress.java:431)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)
at com.android.okhttp.internal.Network$1.resolveInetAddresses(Network.java:29)
at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:188)
at com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:157)
at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:100)
at com.android.okhttp.internal.http.HttpEngine.createNextConnection(HttpEngine.java:357)
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:340)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:433)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:114)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:245)
at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getOutputStream(DelegatingHttpsURLConnection.java:218)
at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java)
at com.amazonaws.http.UrlHttpClient.writeContentToConnection(UrlHttpClient.java:156)
at com.amazonaws.http.UrlHttpClient.execute(UrlHttpClient.java:70)
at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:360)
at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:200)
at com.amazonaws.services.cognitoidentity.AmazonCognitoIdentityClient.invoke(AmazonCognitoIdentityClient.java:558)
at com.amazonaws.services.cognitoidentity.AmazonCognitoIdentityClient.getCredentialsForIdentity(AmazonCognitoIdentityClient.java:388)
at com.amazonaws.auth.CognitoCredentialsProvider.populateCredentialsWithCognito(CognitoCredentialsProvider.java:691)
at com.amazonaws.auth.CognitoCredentialsProvider.startSession(CognitoCredentialsProvider.java:617)
at com.amazonaws.auth.CognitoCredentialsProvider.getCredentials(CognitoCredentialsProvider.java:388)
at com.amazonaws.auth.CognitoCachingCredentialsProvider.getCredentials(CognitoCachingCredentialsProvider.java:442)
at com.amazonaws.auth.CognitoCachingCredentialsProvider.getCredentials(CognitoCachingCredentialsProvider.java:76)
at com.amazonaws.mobileconnectors.iot.AWSIotMqttManager.reconnectToSession(AWSIotMqttManager.java:835)
at com.amazonaws.mobileconnectors.iot.AWSIotMqttManager$4.run(AWSIotMqttManager.java:904)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
karthiksaligrama
commented
7 years ago
NetworkOnMainThread exception can occur when reconnecting to an IoT session if it needs to get
getCredentials()from the API. This occurs on: the latest IoT SDK.This is because
scheduleReconnect()posts to the MainThread when scheduling the reconnections.