почему так не принимает programmingLanguages.remove(programmingLanguages.size() - 1);

public class Solution {

    //public static ArrayList<String> programmingLanguages = new ArrayList<>(Arrays.asList("C", "C++", "Python", "JavaScript", "Ruby", "Java", "Pascal"));

    public static ArrayList<String> programmingLanguages = new ArrayList<>(Arrays.asList("C", "Python", "JavaScript", "C++", "Pascal"));
    public static void main(String[] args) {
        programmingLanguages.remove(programmingLanguages.size() - 1);
        System.out.println(programmingLanguages);
    }
}

[C, Python, JavaScript, C++]

public static ArrayList<String> programmingLanguages = new ArrayList<>(Arrays.asList("Pascal", "C", "Python", "JavaScript", "C++");
public static ArrayList<String> programmingLanguages1 = new ArrayList<>(Arrays.asList("C", "Python",  "C++", "JavaScript", "Pascal", "C++");