java.lang.NullPointerException: Attempt to read from field 'com.x.x.models.ObjectModel$ModelTypes com.x.x.models.ObjectModel.type' on a null object reference

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Attempt to read from field 'com.x.x.models.ObjectModel$ModelTypes com.x.x.models.ObjectModel.type' on a null object reference
java.lang.NullPointerException: Attempt to read from field 'com.x.x.models.ObjectModel$ModelTypes com.x.x.models.ObjectModel.type' on a null object reference
at com.x.x.adapters.ListAdapter.getItemViewType(ListAdapter.java:32)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4664)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4617)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1994)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1390)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1353)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:574)
at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3028)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2906)
at android.view.View.layout(View.java:15654)
at android.view.ViewGroup.layout(ViewGroup.java:4969)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1077)
at android.view.View.layout(View.java:15654)
at android.view.ViewGroup.layout(ViewGroup.java:4969)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:573)
at android.widget.FrameLayout.onLayout(FrameLayout.java:508)
at android.view.View.layout(View.java:15654)
at android.view.ViewGroup.layout(ViewGroup.java:4969)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1705)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1559)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1468)
at android.view.View.layout(View.java:15654)
at android.view.ViewGroup.layout(ViewGroup.java:4969)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:573)
at android.widget.FrameLayout.onLayout(FrameLayout.java:508)
at android.view.View.layout(View.java:15654)
at android.view.ViewGroup.layout(ViewGroup.java:4969)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1705)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1559)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1468)
at android.view.View.layout(View.java:15654)
at android.view.ViewGroup.layout(ViewGroup.java:4969)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:573)
at android.widget.FrameLayout.onLayout(FrameLayout.java:508)
at android.view.View.layout(View.java:15654)
at android.view.ViewGroup.layout(ViewGroup.java:4969)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2102)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1859)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1078)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5875)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
at android.view.Choreographer.doCallbacks(Choreographer.java:580)
at android.view.Choreographer.doFrame(Choreographer.java:550)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5351)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:908)

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