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via Coderanch by Tom Landry, 1 year ago
javax.swing.JSpinner$ListEditor$ListFormatter cannot be cast to javax.swing.text.DefaultFormatter
java.lang.ClassCastException: javax.swing.JSpinner$ListEditor$ListFormatter cannot be cast to javax.swing.text.DefaultFormatter	at SpinnerEditor.(Main.java:60)	at Main.(Main.java:44)	at Main.main(Main.java:27)