twoway-view stacktrace

     E  Process: org.lucasr.twowayview.sample, PID: 7606
     E  java.lang.NullPointerException: Attempt to read from field 'int org.lucasr.twowayview.widget.TWSpannableGridLayoutManager$SpannableItemEntry.rowSpan' on a
         null object reference
     E      at org.lucasr.twowayview.widget.TWSpannableGridLayoutManager$SpannableItemEntry.access$100(TWSpannableGridLayoutManager.java:40)
     E      at org.lucasr.twowayview.widget.TWSpannableGridLayoutManager.getFirstChildCountInLanes(TWSpannableGridLayoutManager.java:223)
     E      at org.lucasr.twowayview.widget.TWSpannableGridLayoutManager.moveLayoutToPosition(TWSpannableGridLayoutManager.java:262)
     E      at org.lucasr.twowayview.widget.TWLanedLayoutManager.onLayoutChildren(TWLanedLayoutManager.java:236)
     E      at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:1461)
     E      at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:1600)
     E      at android.view.View.layout(View.java:15273)
     E      at android.view.ViewGroup.layout(ViewGroup.java:4763)
     E      at android.widget.FrameLayout.layoutChildren(FrameLayout.java:457)
     E      at android.widget.FrameLayout.onLayout(FrameLayout.java:392)
     E      at android.view.View.layout(View.java:15273)
     E      at android.view.ViewGroup.layout(ViewGroup.java:4763)
     E      at android.widget.FrameLayout.layoutChildren(FrameLayout.java:457)
     E      at android.widget.FrameLayout.onLayout(FrameLayout.java:392)
     E      at android.view.View.layout(View.java:15273)
     E      at android.view.ViewGroup.layout(ViewGroup.java:4763)
     E      at android.widget.FrameLayout.layoutChildren(FrameLayout.java:457)
     E      at android.widget.FrameLayout.onLayout(FrameLayout.java:392)
     E      at android.view.View.layout(View.java:15273)
     E      at android.view.ViewGroup.layout(ViewGroup.java:4763)
     E      at android.widget.FrameLayout.layoutChildren(FrameLayout.java:457)
     E      at android.widget.FrameLayout.onLayout(FrameLayout.java:392)
     E      at android.view.View.layout(View.java:15273)
     E      at android.view.ViewGroup.layout(ViewGroup.java:4763)
     E      at com.android.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:494)
     E      at android.view.View.layout(View.java:15273)
     E      at android.view.ViewGroup.layout(ViewGroup.java:4763)
     E      at android.widget.FrameLayout.layoutChildren(FrameLayout.java:457)
     E      at android.widget.FrameLayout.onLayout(FrameLayout.java:392)
     E      at android.view.View.layout(View.java:15273)
     E      at android.view.ViewGroup.layout(ViewGroup.java:4763)
     E      at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2057)
     E      at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1814)
     E      at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1044)
     E      at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5749)
     E      at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
     E      at android.view.Choreographer.doCallbacks(Choreographer.java:580)
     E      at android.view.Choreographer.doFrame(Choreographer.java:550)
     E      at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
     E      at android.os.Handler.handleCallback(Handler.java:738)
     E      at android.os.Handler.dispatchMessage(Handler.java:95)
     E      at android.os.Looper.loop(Looper.java:135)
     E      at android.app.ActivityThread.main(ActivityThread.java:5070)
     E      at java.lang.reflect.Method.invoke(Native Method)
     E      at java.lang.reflect.Method.invoke(Method.java:372)
     E      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:836)
     E      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:631)
art  I  Heap transition to ProcessStateJankImperceptible took 42.602537ms saved at least 473KB