code: @Nullable
    @SafeVarargs
    public static <ELEMENTTYPE> ELEMENTTYPE getFirst (@Nullable final ELEMENTTYPE... aArray)
    {
      return getFirst (aArray, null);
    }
docs: Get the first element of the array or <code>null</code> if the passed array
  is empty.
  
  @param <ELEMENTTYPE>
  Array element type
  @param aArray
  The array who's first element is to be retrieved. May be
  <code>null</code> or empty.
  @return <code>null</code> if the passed array is <code>null</code> or empty
  - the first element otherwise (may also be <code>null</code>).