FULL PRODUCT VERSION :
java version "10" 2018-03-20
Java(TM) SE Runtime Environment 18.3 (build 10+46)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10+46, mixed mode

ADDITIONAL OS VERSION INFORMATION :
maOS High Sierra 10.13.4

A DESCRIPTION OF THE PROBLEM :
DateCell text color are not updated correctly when DateCell with disable = true is reused.

This problem has occurred in JDK 10.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1) Start the test application
2) Display the calendar popup
3) Last month click
4) Next month click
5) Next month click

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The text color of DateCell is displayed correctly
ACTUAL -
Some DateCell text colors are grayed out

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.time.LocalDate;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.DateCell;
import javafx.scene.control.DatePicker;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;

public class DateCellDisableTest extends Application{
	
	@Override
	public void start(Stage primaryStage) throws Exception {

		DatePicker datePicker = new DatePicker();
		
		datePicker.setDayCellFactory((cell)->{
			return new DateCell() {
				@Override
				public void updateItem(final LocalDate item, final boolean empty) {
					super.updateItem(item, empty);
					
					if (item.isBefore(LocalDate.now())) {
						this.setDisable(true);
					}
				}
			};
		});
		
		
		BorderPane root = new BorderPane(datePicker);
		
		Scene scene = new Scene(root, 400, 400);
		primaryStage.setScene(scene);
		primaryStage.show();
	}
	
	public static void main(String[] args) {
		Application.launch(args);
	}

}

---------- END SOURCE ----------