How Can I Gradually Rotate an Image in Swing?

How to rotate an image in Swing step by step?

I have a problem with rotating images when using them in Swing. I want the image to gradually rotate 90 degrees when the user clicks the button, but it's not working. I want the image to gradually rotate 90 degrees after clicking the button. I've created a SSCCE to demonstrate this problem. Please replace the image in the CrossingPanelSSCE class with any image of your choice. Just put the image into your images folder and name it images/railCrossing.JPG.

RotateButtonSSCE

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JPanel;

public class RotateButtonSSCE extends JPanel implements ActionListener{
      private JButton rotate = new JButton("Rotate");
      private VisualizationPanelSSCE vis = new VisualizationPanelSSCE();

    public RotateButtonSSCE() {

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