Android JavaCV facerecogniser - Fatal signal 11 when training faceRecogniser?

Question

So my project is to make a face recognition(not detection) app for Android. My plan is to use JavaCV with the contrib library facerecogniser. However when training the recogniser the app crashes with this error:

Fatal signal 11 (SIGSEGV) 0xdeadbaad (code=1). the error logs can be found here:

Error Logs

The code I'm using to do this is as follows:

 MatVector images;
 CvArr labelsCV;

 final int numberOfImages = 20;
 File faceDir = new File("/sdcard/FaceDB");

 images = new MatVector(numberOfImages);

 ArrayList<Integer> labels = new ArrayList<Integer>();
 IntPointer iPoint = new IntPointer();

 CvArr image;
 // Load an image:
 image = cvLoadImage(faceDir + "/s1/1.pgm");
 // And put it into the MatVector:
 images.put(0, image); 
 // and put the label in
 labels.add(0);

  for (Integer i: labels){
         iPoint.put(i);
  }

  labelsCV = new CvArr(iPoint);

  FaceRecognizerPtr model = createFisherFaceRecognizer(0,1000);
  // Then train it. See how I call get(), to get the FaceRecognizer inside the FaceRecognizerPtr:
  model.get().train(images, labelsCV);

I'm not sure but it could be something to do with my labelsCV variable and pointer, I'm not really sure how to do this.

Any help would be much apreciated thanks