Graph and data storage in the same singleton, it is an error ??

I need to create a GUI to show data coming from a satellite receiver
through the usb ( used as a virtual com port with library rxtx)

I already created an architecture like this :

package it.imt.edusat.gui;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Random;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;

public class JTabbedTest {

    public static void main(String[] args) {
         EventQueue.invokeLater(new Runnable() {
             public void run() {
                 (new JTabbedTest()).create();
             }
         });
    }

    private void create() {
        JTabbedPane telemetryGroupsTabs = new JTabbedPane();
        telemetryGroupsTabs.addTab("One", new TelemetryGroup());
        telemetryGroupsTabs.addTab("Two", new TelemetryGroup());

        JFrame f = new JFrame("JTabbedPaneTest");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(telemetryGroupsTabs);
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
    }
}

class TelemetryGroup extends JPanel {
    public TelemetryGroup() {
        this.setLayout(new BorderLayout());
        View view = new View();
        this.add(new View(), BorderLayout.CENTER);
        this.add(new Control(view), BorderLayout.WEST);
    }
}

class Control extends JPanel {

    private static final Random random = new Random();

    public Control(ActionListener listener) {
        JButton change = new JButton("Change");
        add(change);
     change.addActionListener(listener);
    }

}

class View extends JPanel implements ActionListener {

    private static final Random random = new Random();

    public View() {
        setPreferredSize(new Dimension(100, 100));
        setBackground(new Color(random.nextInt()));
    }

    public void actionPerformed(ActionEvent e) {
        setBackground(new Color(random.nextInt()));
        repaint();
     }
}

where View ia a Singleton Class, it stores data coming from the serial
and also shows them using JfreeChart, I choose the singleton because I
think it is not necessary to create a graph for any tab of the
JTabbedPane, I could reuse the same graph, it seems to be not so, the
result is that I can see just the graph for the latest created View
and I cannot see it in the other tabs.

DO you think this is an architecture error or what ??

Thanks

Antonio
ww.etantonio.it/en