close
int x = 3; // chunk size
int len = bytes.length;
int counter = 0;
for (int i = 0; i < len - x + 1; i += x)
newArray[counter++] = Arrays.copyOfRange(bytes, i, i + x);
if (len % x != 0)
newArray[counter] = Arrays.copyOfRange(bytes, len - len % x, len);
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