@SafeVarargs
    public static Byte[] box(final byte... a) {
        if (a == null) {
            return null;
        }

        return box(a, 0, a.length);
    }
@ SafeVarargs public static Byte [ ] box ( final byte ... a ) { if ( a == null ) { return null ; } return box ( a , 0 , a . length ) ; }
<p>
Converts an array of primitive bytes to objects.
</p>

<p>
This method returns {@code null} for a {@code null} input array.
</p>

@param a
a {@code byte} array
@return a {@code Byte} array, {@code null} if null array input