how to convert java.util.Vector into a matrix

I have a Java.util.Vector

myData=[[0, 1, 1, 1, 1], [0, 0, 1, 1, 1], [0, 0, 0, 1, 1], [0, 0, 0, 0, 1], [0, 0, 0, 0, 0]]

want to convert this into matrix as

 M=  0 1 1 1 1
     0 0 1 1 1
     0 0 0 1 1
     0 0 0 0 1
     0 0 0 0 0

Thanks in advance.

[Stephen23]

duplicate (with answers, none of them accepted):

https://www.mathworks.com/matlabcentral/answers/349873-how-to-convert-a-1x1-vactor-into-a-matrix-of-5x5