import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.border.LineBorder;


public class BufferedImage2ImageIconClass {

    private static final long serialVersionUID = 1L;
    JPanel panel;
    JLabel label;
    ImageIcon icon;
    BufferedImage image;

    public BufferedImage2ImageIconClass() {

        File file = new File("/Users/joecze/Downloads/selbst.jpg");
        try {
            this.image = ImageIO.read(file);
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        int imageBreite = image.getWidth();
        int imageHoehe = image.getHeight();

        icon = new ImageIcon(image);
        label = new JLabel(icon);
        label.setBorder(new LineBorder(Color.WHITE));

        panel = new JPanel();
        panel.setLayout(new BorderLayout());
        panel.setBackground(Color.DARK_GRAY);
        panel.add(label, BorderLayout.CENTER);

        JFrame frame = new JFrame("Image 2 ImageIcon");
        frame.add(panel);
        frame.setSize(imageBreite + 100, imageHoehe + 100);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

    public static void main(String args[]) {
        SwingUtilities.invokeLater(() -> new BufferedImage2ImageIconClass());
    }
}