javademos/patterns/broken/GuardBeforeGeneral.java

public class GuardBeforeGeneral {
    static String f(Object o) {
        return switch (o) {
            case String s -> "any string";
            case String s when s.isEmpty() -> "empty string";   // guarded case after the unguarded one
            default -> "other";
        };
    }
    public static void main(String[] args) { System.out.println(f("")); }
}