Javafx: Can't import custom control into Scene Builder - eclipse

Question

I tried to import my gui control (jar file) into the scene builder but without success. The file was created using eclipse export -> jar. When it was selected in scene builder "import JAR/FXML File", there was nothing inside the Import Dialog.
My control is a TextField with TextFormatter:
import java.text.NumberFormat;
import java.text.ParseException;
import javafx.scene.control.TextField;
import javafx.scene.control.TextFormatter;
import javafx.util.StringConverter;
public class CustomTextField extends TextField {
public CustomTextField() {
setText("Custom");
NumberTextFormatter formatter = new NumberTextFormatter(new StringConverter<Number>() {
#Override
public String toString(Number object) {
return object.toString();
}
#Override
public Number fromString(String string) {
try {
return NumberFormat.getInstance().parse(string);
} catch (ParseException e) {
e.printStackTrace();
return null;
}
}
});
setTextFormatter(formatter);
}
public static class NumberTextFormatter extends TextFormatter<Number> {
public NumberTextFormatter(StringConverter<Number> valueConverter) {
super(valueConverter);
}
}
}
I am sure that the culprit is the usage of TextFormatter. Because the control will works (appear in Import Dialog) if I removed the TextFormatter from the codes.
Whats wrong?
Update: Even if I simplified my constructor to exclude setTextFormatter(), as long as it still have a line of TextFormatter declaration the problem still persist. Such as:
public CustomTextField() {
setText("Custom");
TextFormatter<Integer> formatter = new TextFormatter<Integer>(new IntegerStringConverter());
}

Answer 1

Found the solution. The oracle scene builder 2.0 is too old/ too dumb to work with TextFormatter. Need to upgrade to Gluon scene builder 8.5.0.