public static ImmutableIntArray of(int first, int... rest) {
    checkArgument(
        rest.length <= Integer.MAX_VALUE - 1, "the total number of elements must fit in an int");
    int[] array = new int[rest.length + 1];
    array[0] = first;
    System.arraycopy(rest, 0, array, 1, rest.length);
    return new ImmutableIntArray(array);
  }
public static ImmutableIntArray of(int first, int... rest) {
    checkArgument(
        rest.length <= Integer.MAX_VALUE - 1, "the total number of elements must fit in an int");
    int[] array = new int[rest.length + 1];
    array[0] = first;
    System.arraycopy(rest, 0, array, 1, rest.length);
    return new ImmutableIntArray(array);
  }
public static ImmutableIntArray of ( int first , int ... rest ) { checkArgument ( rest . length <= Integer . MAX_VALUE - 1 , "the total number of elements must fit in an int" ) ; int [ ] array = new int [ rest . length + 1 ] ; array [ 0 ] = first ; System . arraycopy ( rest , 0 , array , 1 , rest . length ) ; return new ImmutableIntArray ( array ) ; }
okay since we have to copy the just-created array anyway.
okay since we have to copy the just - created array anyway .