finally changes the variable after return

public class Main {
    static int number() {
        int x = 1;
        try {
            return x;
        } finally {
            x = 5;
        }
    }

    static StringBuilder text() {
        StringBuilder sb = new StringBuilder("a");
        try {
            return sb;
        } finally {
            sb.append("b");
        }
    }

    public static void main(String[] args) {
        System.out.println(number());
        System.out.println(text());
    }
}