java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:638)
at java.util.ArrayList.get(ArrayList.java:414)
at com.sun.javafx.css.StyleMap.getCascadingStyles(StyleMap.java:126)
at javafx.scene.CssStyleHelper.getStyle(CssStyleHelper.java:691)
at java.util.ArrayList.rangeCheck(ArrayList.java:638)
at java.util.ArrayList.get(ArrayList.java:414)
at com.sun.javafx.css.StyleMap.getCascadingStyles(StyleMap.java:126)
at javafx.scene.CssStyleHelper.getStyle(CssStyleHelper.java:691)