Resolved NPE app.YM.if(ttb:1374)

Code (Text):

1.  
2. java.lang.NullPointerException
3.  at app.YM.if(ttb:1374)
4.  at app.YM.final(ttb:250)
5.  at com.sun.javafx.binding.ExpressionHelper$Generic.fireValueChangedEvent(Unknown Source)
6.  at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(Unknown Source)
7.  at javafx.beans.property.ReadOnlyBooleanWrapper$ReadOnlyPropertyImpl.fireValueChangedEvent(Unknown Source)
8.  at javafx.beans.property.ReadOnlyBooleanWrapper$ReadOnlyPropertyImpl.access$100(Unknown Source)
9.  at javafx.beans.property.ReadOnlyBooleanWrapper.fireValueChangedEvent(Unknown Source)
10.  at javafx.beans.property.BooleanPropertyBase.markInvalid(Unknown Source)
11.  at javafx.beans.property.BooleanPropertyBase.set(Unknown Source)
12.  at javafx.stage.Window.setFocused(Unknown Source)
13.  at com.sun.javafx.stage.WindowPeerListener.changedFocused(Unknown Source)
14.  at com.sun.javafx.tk.quantum.GlassWindowEventHandler.run(Unknown Source)
15.  at com.sun.javafx.tk.quantum.GlassWindowEventHandler.run(Unknown Source)
16.  at java.security.AccessController.doPrivileged(Native Method)
17.  at com.sun.javafx.tk.quantum.GlassWindowEventHandler.lambda$handleWindowEvent$424(Unknown Source)
18.  at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(Unknown Source)
19.  at com.sun.javafx.tk.quantum.GlassWindowEventHandler.handleWindowEvent(Unknown Source)
20.  at com.sun.glass.ui.Window.handleWindowEvent(Unknown Source)
21.  at com.sun.glass.ui.Window.notifyFocus(Unknown Source)
22.  at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
23.  at com.sun.glass.ui.win.WinApplication.lambda$null$149(Unknown Source)
24.  at java.lang.Thread.run(Unknown Source)
25. 1.2.10 - DARK
26.  

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