Java - How to add new elements to arrays?

package com.logicbig.example;

import java.util.Arrays;
import java.util.stream.Stream;

public class ConcatArrayTest {

    public static void main (String[] args) {
        errorMsg("one", "two", "three");
    }

    public static void errorMsg (String... s) {
        String[] newStrings = {"ERROR!!!"};
        String[] strings = concat(newStrings, s);
        Arrays.stream(strings).forEach(System.out::println);
    }

    /**
     * This method concatenates two string arrays using Stream.concat(..)
     */
    public static String[] concat (String[] array1, String[] array2) {
        return Stream.concat(Arrays.stream(array1), Arrays.stream(array2))
                     .toArray(String[]::new);
    }
}