amdroid: BitmapFactory issue

Good Day I'm trying to display captured image in gridview as well save it in Sqlite Database..in the logcat appear this

E/BitmapFactory: Unable to decode stream: java.lang.NullPointerException W/System.err: java.lang.NullPointerException W/System.err: at .CameraFragment.previewCapturedImage(CameraFragment.java:259 W/System.err: at CameraFragment.onActivityResult(CameraFragment.java:215)

which point to this line in my code

bitmap.compress(Bitmap.CompressFormat.PNG, 0, stream);

here is the code

@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
      if (requestCode==CAMERA_CAPTURE_IMAGE_REQUEST_CODE&&resultCode == Activity.RESULT_OK){

                   previewCapturedImage();

           Toast.makeText(getActivity(), "InvoiceFile saved successfully", Toast.LENGTH_LONG).show();

        }
               else if (resultCode == getActivity().RESULT_CANCELED) {
                   // user cancelled Image capture
                   Toast.makeText(getActivity(), "User cancelled image capture", Toast.LENGTH_SHORT)
                           .show();}
               else {
                   // failed to capture image

                   Toast.makeText(getActivity(), "Sorry! Failed to capture image", Toast.LENGTH_SHORT)
                           .show();
               }}
 private void previewCapturedImage() {


BitmapFactory.Options bmOptions = new BitmapFactory.Options();
 ByteArrayOutputStream stream = new ByteArrayOutputStream();
            Bitmap bitmap = BitmapFactory.decodeFile(mCurrentPhotoPath, bmOptions);
bitmap.compress(Bitmap.CompressFormat.PNG, 0, stream);

            byte[] byte_arr = stream.toByteArray();
            images.setImageBlob(byte_arr);
            // Add Image Path To List
            myLists.add(images);
            // Refresh Gridview Image Thumbnails

            adapter.notifyDataSetChanged();
            DBadapter.insertImage(images);

        }

any Help will be appreciate