problem running java program

Hello,


I developed a java program with eclipse that has a graphical interface. During the execution of program when I click a button I have the following message that appears:

FATAL: could not find file 'simulator.properties' in default search paths:
'null', 'C:\Users\.../properties'

this is the code :

import net.sourceforge.jpcap.simulator.PacketCaptureSimulator;
import net.sourceforge.jpcap.capture.*;
import net.sourceforge.jpcap.net.*;

import java.awt.*;
import java.awt.event.*;

import java.io.*;

import java.util.*;

import javax.swing.table.*;
import javax.swing.*;

import java.util.*;
public class FB extends JFrame implements ActionListener {
private JButton b;
private TablePanel tablePanel;

public void actionPerformed(java.awt.event.ActionEvent e) {
new Packets().simulate();
}

private void setGui() {
try {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Container cp = getContentPane();
JPanel bPanel = new JPanel();
tablePanel = new TablePanel();
b = new JButton("Afficher");
b.addActionListener(this);
bPanel.add(b);
cp.add(tablePanel, BorderLayout.CENTER);
cp.add(bPanel, BorderLayout.SOUTH);
} catch (Exception e) {
e.printStackTrace();
}
}

private class Packets {

public void simulate() {
try {
PacketCaptureSimulator sim = new PacketCaptureSimulator();
sim.addPacketListener(tablePanel);
sim.capture(256);
sim.close();
}
catch(Exception e) {
e.printStackTrace();
}
}
}


public static void main(String[] args) {
	try {
	SwingUtilities.invokeAndWait(new Runnable() {
	public void run() {
	FB f = new FB();
	f.setGui();
	f.pack();
	f.setVisible(true);

	}
	});
	} catch (Exception e) {
	e.printStackTrace();
	}
	
	}
	

	private class TablePanel extends JPanel implements PacketListener {
	/**
		 * 
		 */
		private static final long serialVersionUID = 1L;
	JTable table;
	Object[] headers = {
	"Adresse IP source",
	"Adresse IP destination",
	"Data",
	"Protocol"
	};

	public TablePanel() {
	table = new JTable(new DefaultTableModel(null, headers));
	add(new JScrollPane(table));
	}

	public void packetArrived(Packet packet) {
		try {
		
			
		if (packet instanceof IPPacket) {
	IPPacket ip = (IPPacket)packet;
	
	String[] data = new String[] {
	ip.getSourceAddress(),
	ip.getDestinationAddress(),
	new String(ip.getData()),
	IPProtocol.getDescription(ip.getIPProtocol())
	};
	updateTable(data);
		}
		
		
		if (packet instanceof EthernetPacket) {
			EthernetPacket ethernetPacket = (EthernetPacket) packet;
			String[] data = new String[] {
			ethernetPacket.getSourceHwAddress(),ethernetPacket.getDestinationHwAddress()};
			}

			
		if (packet instanceof ARPPacket) {
				ARPPacket arpPacket = (ARPPacket) packet;
				String[] data = new String[] {arpPacket.getSourceProtoAddress(),arpPacket.getDestinationProtoAddress()};
			}

	
		}
	catch(Exception e) {
			e.printStackTrace();	
		}
	}


	public void updateTable(final String[] info) {
	SwingUtilities.invokeLater(new Runnable() {
	public void run() {
	DefaultTableModel model = (DefaultTableModel)table.getModel();
	model.addRow(info);
	}
	});
	
	}
	}
	}

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help me !!