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java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:787) at java.util.HashMap$KeyIterator.next(HashMap.java:814) at openprojects.atvt.ui.VideoAdapter.getLiveTvBookmarks(VideoAdapter.java:107) at openprojects.atvt.ui.MainActivity.switchRowsFragment(MainActivity.java:323) at openprojects.atvt.ui.MainActivity.setPosition(MainActivity.java:378) at openprojects.atvt.ui.MainActivity.access$500(MainActivity.java:48) at openprojects.atvt.ui.MainActivity$4.onRequestChildFocus(MainActivity.java:268) at android.support.v17.leanback.widget.BrowseFrameLayout.requestChildFocus(BrowseFrameLayout.java:124) at android.view.ViewGroup.requestChildFocus(ViewGroup.java:740) at android.view.ViewGroup.requestChildFocus(ViewGroup.java:740) at android.view.ViewGroup.requestChildFocus(ViewGroup.java:740) at android.support.v7.widget.RecyclerView.requestChildFocus(RecyclerView.java:2106) at android.view.ViewGroup.requestChildFocus(ViewGroup.java:740) at android.view.View.handleFocusGainInternal(View.java:5471) at android.view.View.requestFocusNoSearch(View.java:8476) at android.view.View.requestFocus(View.java:8455) at android.view.ViewRootImpl$ViewPostImeInputStage.processKeyEvent(ViewRootImpl.java:4203) at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4089) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3695) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3661) at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3787) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3669) at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3844) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3695) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3661) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3669) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3695) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3661) at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3820) at android.view.ViewRootImpl$ImeInputStage.onFinishedInputEvent(ViewRootImpl.java:3981) at android.view.inputmethod.InputMethodManager$PendingEvent.run(InputMethodManager.java:2253) at android.view.inputmethod.InputMethodManager.invokeFinishedInputEventCallback(InputMethodManager.java:1874) at android.view.inputmethod.InputMethodManager.finishedInputEvent(InputMethodManager.java:1865) at android.view.inputmethod.InputMethodManager$ImeInputEventSender.onInputEventFinished(InputMethodManager.java:2230) at android.view.InputEventSender.dispatchInputEventFinished(InputEventSender.java:141) at android.os.MessageQueue.nativePollOnce(Native Method) at android.os.MessageQueue.next(MessageQueue.java:323) at android.os.Looper.loop(Looper.java:135) 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)