Java中的M * N矩阵的就地矩阵转置不可能吗？

Is it possible to do in-place matrix transpose of an M*N matrix in Java? I don't think it's possible in Java because, in a 3*5 matrix, the element at 3*5 would ideally be swapped with the element at 5*3, but such a position does not exist. In say, C/C++, it would be possible since memory is contiguous.Is it possible to do in-place matrix transpose