Nao reconhece minha webcam

package jmf.ex1;

import java.awt.Component;

import javax.swing.JFrame;

public class FrameVideo extends JFrame {
	
	private GerenteJMF gerente;
	private Component pnlVideo;
	
	public FrameVideo() 
	{
		try
		{
			this.inicializarJMF();
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		
		this.setLayout(null);
		this.setSize(350, 330);
		this.setLocationRelativeTo(null);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setVisible(true);
	}
	
	private void inicializarJMF()throws Exception
	{
		gerente = new GerenteJMF();
		pnlVideo = gerente.getPanelVideo();
		pnlVideo.setBounds(10, 10, 320, 240);
		this.getContentPane().add(pnlVideo);
	}
	
	public static void main(String arg[])
	{
		new FrameVideo();
	}

}

package jmf.ex1;

import java.awt.Component;
import java.util.Iterator;

import javax.media.CaptureDeviceInfo;
import javax.media.CaptureDeviceManager;
import javax.media.Format;
import javax.media.Manager;
import javax.media.MediaLocator;
import javax.media.Player;


public class package jmf.ex1;

import java.awt.Component;
import java.util.Iterator;

import javax.media.CaptureDeviceInfo;
import javax.media.CaptureDeviceManager;
import javax.media.Format;
import javax.media.Manager;
import javax.media.MediaLocator;
import javax.media.Player;


public class GerenteJMF 
{
	private Player playerVideo = null;



	public Player getPlayerVideo() throws Exception
	{
		if(playerVideo == null)
		{
			CaptureDeviceInfo device = 	detectarDispositivoVideo();
			MediaLocator ml = new MediaLocator(device.getName());
			playerVideo = Manager.createRealizedPlayer(ml);
			playerVideo.start();
		}
		return playerVideo;
	}
	
	public Component getPanelVideo() throws Exception
	{
		return this.getPlayerVideo().getVisualComponent();
	}
	
	private CaptureDeviceInfo detectarDispositivoVideo()
	{
                
		Iterator<CaptureDeviceInfo> it = CaptureDeviceManager.getDeviceList(null).iterator();
		while(it.hasNext())
		{
			CaptureDeviceInfo device = it.next();
			String nome = device.getName();
			if(nome.startsWith("v"))
				return device;
		}
		return null;
	}
	

}

CaptureDeviceManager.getDeviceList(null).iterator();