com.mongodb.MongoException: android.os.NetworkOnMainThreadException

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Samebug tips

via Stack Overflow by Razgriz

Happens when you make a network call on the main UI thread of the Android application which results in a UI freeze until the network call is complete and the response is received. Instead, execute the network calls in the background: use AsyncTask.


An alternative for just getting rid of the Exception is use StrictMode.ThreadPolicy to force execute on main thread.

StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();

Solutions on the web

via Stack Overflow by Sujith Sizon
, 10 months ago
via Stack Overflow by Yousaf Iqbal
, 1 year ago
at com.mongodb.connection.SocketStreamHelper.initialize(
at com.mongodb.connection.DefaultConnectionPool$
at com.mongodb.connection.DefaultConnectionPool.get(
at com.mongodb.connection.DefaultConnectionPool.get(
at com.mongodb.connection.DefaultServer.getConnection(
at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.getConnection(
at com.mongodb.operation.OperationHelper.withConnectionSource(
at com.mongodb.operation.OperationHelper.withConnection(
at com.mongodb.operation.MixedBulkWriteOperation.execute(
at com.mongodb.operation.MixedBulkWriteOperation.execute(
at com.mongodb.Mongo.execute(
at com.mongodb.Mongo$2.execute(
at com.mongodb.MongoCollectionImpl.executeSingleWriteRequest(
at com.mongodb.MongoCollectionImpl.insertOne(
at com.sujithsizon.lzlogin3.LoginActivity.yalla(
at com.sujithsizon.lzlogin3.LoginActivity$3$1.onCompleted(
at com.facebook.GraphRequest$1.onCompleted(
at com.facebook.GraphRequest$
at android.os.Handler.handleCallback(
at android.os.Handler.dispatchMessage(
at android.os.Looper.loop(
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(

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