java - JavaFX canvas strange errors -


i using javafx canvas , update painting every 1 second or more if dragging mouse on it.

enter image description here

although in javafx thread these strange errors:

1)java.lang.internalerror: unrecognized pgcanvas token: 67 @ com.sun.javafx.sg.prism.ngcanvas.renderstream(ngcanvas.java:1157)

2)java.lang.classcastexception: com.sun.prism.paint.color cannot cast java.lang.string

3)something error miter>1

most times work others doing own things.

what causing errors?


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