// Simple JSON generation with STR
record Point(int x, int y) {
    public String toJson() {
        return STR."""
               {"x":"\{this.x}", "y":"\{this.y}"}\
               """;
    }
}

var objects =
        List.of(new Point(1, 1), new Point(2, 2));
objects.stream()
        .map(Point::toJson)
        .forEach(System.out::println);