Fastest way to check if a byte array is all zeros

Question

I have a byte[4096] and was wondering what the fastest way is to check if all values are zero?

Is there any way faster than doing:

byte[] b          


        

Answer 1

This may not be the fastest or most memory performant solution but it's a one liner:

byte[] arr = randomByteArray();
assert Arrays.equals(arr, new byte[arr.length]);