System information (version)

• OpenCV => latest
• Operating System / Platform => Android
• Compiler => Android NDK

Detailed description

Steps to reproduce

Following code reproduces the issue:

        Mat test = new Mat(new int[]{ 5, 5, 5 }, CvType.CV_16S);
        short[] data = new short[125];
        for (int i = 0; i < data.length; i++ ) {
            data[i] = (short)i;
        }
        test.put(new int[] {0, 0, 0}, data);
        Mat subMat = test.submat(new Range[]{new Range(1,4), new Range(1,4), new Range(1,4)});
        Mat subMatClone = subMat.clone();
        short[] out1 = new short[27];
        subMat.get(new int[] { 0, 0, 0 }, out1);
        Log.i("INCORRECT", Arrays.toString(out1));
        short[] out2 = new short[27];
        subMatClone.get(new int[] { 0, 0, 0 }, out2);
        Log.i("CORRECT", Arrays.toString(out2));

Issue submission checklist

• [o] I report the issue, it's not a question
• [o] I checked the problem with documentation, FAQ, open issues,
  forum.opencv.org, Stack Overflow, etc and have not found solution
• [o] I updated to latest OpenCV version and the issue is still there
• [o] There is reproducer code and related data files: videos, images, onnx, etc

Full disclosure: this bug was originally introduced in a PR from myself. The iOS implementation works - will prepare a PR to bring the Android implementation in line with the iOS implementation