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java.util.ConcurrentModificationException: 	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:796)	at java.util.HashMap$EntryIterator.next(HashMap.java:833)	at java.util.HashMap$EntryIterator.next(HashMap.java:831)	at java.util.AbstractMap.putAll(AbstractMap.java:381)	at java.util.HashMap.putAll(HashMap.java:512)	at com.google.analytics.tracking.android.GoogleTracker$SimpleModel.getKeysAndValues(GoogleTracker.java:391)	at com.google.analytics.tracking.android.GoogleTracker.send(GoogleTracker.java:73)	at com.google.analytics.tracking.android.GoogleTracker.trackTiming(GoogleTracker.java:145)	at pl.company.myapp.home.MainLongueAdapter$1.doInBackground(MainLongueAdapter.java:73)	at pl.company.myapp.home.MainLongueAdapter$1.doInBackground(MainLongueAdapter.java:1)	at android.os.AsyncTask$2.call(AsyncTask.java:185)	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)	at java.util.concurrent.FutureTask.run(FutureTask.java:138)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)	at java.lang.Thread.run(Thread.java:1019)