我想用我的网络摄像头在ubuntu 11.10上用Java捕捉图像
Vector deviceList = CaptureDeviceManager.getDeviceList( new RGBFormat());
System.out.println(deviceList.toString());
//gets the first device in deviceList
device = (CaptureDeviceInfo) deviceList.firstElement();
我有个例外:"java.util.N