opencv: Dnn.BlobFromImage returns (-1 * -1) Mat

I’m using OpenCV 3.4.3 in java in order to import and use a convolutional neural network built with Caffe. However the function BlobFromImage is returning an empty Mat, and i’m getting the following error when calling the net.forward():

Code:

 import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.core.Size;
import org.opencv.dnn.Dnn;
import org.opencv.dnn.Net;
import org.opencv.imgcodecs.Imgcodecs;

public class OpenCVTests {

	public static void main(String[] args) {

		System.loadLibrary(Core.NATIVE_LIBRARY_NAME);

		System.out.println("Loading caffe model...");
		Net net = Dnn.readNetFromCaffe("C:\\Program Files\\Docker\\volumes\\vol1\\model.prototxt");

		Mat image = Imgcodecs.imread("C:\\Users\\Administrator\\Desktop\\cat.jpg");
		System.out.println(image);

		Mat blob = Dnn.blobFromImage(image, 1.0f, new Size(224, 224));
		System.out.println(blob);

		net.setInput(blob);
		Mat result = net.forward();
		System.out.println(result);

	}
}

Output:

Loading caffe model...
Mat [ 224*224*CV_8UC3, isCont=true, isSubmat=false, nativeObj=0x19659e40, dataAddr=0x19678ac0 ]
Mat [ -1*-1*CV_32FC1, isCont=true, isSubmat=false, nativeObj=0x1965a070, dataAddr=0x197a3100 ]
Exception in thread "main" CvException [org.opencv.core.CvException: cv::Exception: OpenCV(3.4.3) Z:\Karbala\build tools\opencv-3.4.3\modules\dnn\src\layers\convolution_layer.cpp:233: error: (-215:Assertion failed) blobs.size() != 0 in function 'cv::dnn::ConvolutionLayerImpl::getMemoryShapes'
]
	at org.opencv.dnn.Net.forward_1(Native Method)
	at org.opencv.dnn.Net.forward(Net.java:62)
	at test.OpenCVTests.main(OpenCVTests.java:31)

Prototxt:

model.prototxt

Any help would be highly appreciated, thanks in advance!