java.lang.NullPointerException

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at java.awt.ContainerOrderFocusTraversalPolicy.getFirstComponent()
    2. Java RT
      Component.setVisible
      1. java.awt.ContainerOrderFocusTraversalPolicy.getFirstComponent(libgcj.so.90)
      2. java.awt.ContainerOrderFocusTraversalPolicy.getFirstComponent(libgcj.so.90)
      3. java.awt.ContainerOrderFocusTraversalPolicy.getFirstComponent(libgcj.so.90)
      4. java.awt.ContainerOrderFocusTraversalPolicy.getDefaultComponent(libgcj.so.90)
      5. java.awt.FocusTraversalPolicy.getInitialComponent(libgcj.so.90)
      6. java.awt.Window.show(libgcj.so.90)
      7. java.awt.Component.show(libgcj.so.90)
      8. java.awt.Component.setVisible(libgcj.so.90)
      8 frames
    3. com.sun.javafx
      WindowStage.setVisible
      1. com.sun.javafx.tk.swing.WindowStage.setVisible(WindowStage.java:291)
      1 frame
    4. javafx.stage
      Stage.postInit$
      1. javafx.stage.Stage.postInit$(Stage.fx:514)
      1 frame
    5. com.sun.javafx
      FXBase.complete$
      1. com.sun.javafx.runtime.FXBase.complete$(FXBase.java:57)
      1 frame
    6. javafxapplication1
      Main.javafx$run$
      1. javafxapplication1.Main.javafx$run$(Main.fx:18)
      1 frame