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java.util.ConcurrentModificationException: 	at java.util.ArrayList$ArrayListIterator.next(ArrayList.java:573)	at com.markuspage.android.atimetracker.Tasks$TaskAdapter$1.hasNext(Tasks.java:955)	at com.markuspage.android.atimetracker.Tasks.onListItemClick(Tasks.java:1090)	at android.app.ListActivity$2.onItemClick(ListActivity.java:319)	at android.widget.AdapterView.performItemClick(AdapterView.java:310)	at android.widget.AbsListView.performItemClick(AbsListView.java:1145)	at android.widget.AbsListView$PerformClick.run(AbsListView.java:3066)	at android.widget.AbsListView$3.run(AbsListView.java:3903)	at android.os.Handler.handleCallback(Handler.java:739)	at android.os.Handler.dispatchMessage(Handler.java:95)	at android.os.Looper.loop(Looper.java:148)	at android.app.ActivityThread.main(ActivityThread.java:5456)	at java.lang.reflect.Method.invoke(Native Method)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)