JavaFX 2.0 :: BufferedImage To Mat - OpenCV

I am new to JavaFX and OpenCV. The Problem is, that JavaFX can't handle Mat objects. First I load an image as a BufferedImage. Then i have to convert this to Mat. Do my image Processing with OpenCV and again convert the result image to a BufferedImage to display in on my UI. Here are the methods for converting Buff to Mat and Mat to Buff I found on the internet:
 
public static Mat img2Mat(BufferedImage image)
    {
  byte[] data = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
  Mat mat = new Mat(image.getHeight(), image.getWidth(), CvType.CV_8UC3);
  mat.put(0, 0, data);
  return mat;

[Code] ....
 
Next I do some OpenCV stuff:
 
public static BufferedImage hello(BufferedImage img) {  
  Mat source  = img2Mat(img); //Convert Buff to Mat
  BufferedImage outImg = null;
       try{
          System.loadLibrary( Core.NATIVE_LIBRARY_NAME );

[Code] ....
 
Finally I call the hello method in my controller:
 
void menuItemTestFired(ActionEvent event) {  
    try {
              result = ImageProc.hallo(bImage);//bImage is an image I've loaded before.
              imageView.setImage(SwingFXUtils.toFXImage(result, null));

[Code] .....
 
Unfortunately I get a lot of errors. Here are the first one:
 
Caused by: java.lang.UnsatisfiedLinkError: org.opencv.core.Mat.n_Mat(III)J
  at org.opencv.core.Mat.n_Mat(Native Method)
  at org.opencv.core.Mat.<init>(Mat.java:471)
 
[Code] ....
 
Can't figure out why this doesn't work. -.-