Person person = JOOR.newInstance(Person.class);
person.setName("John");
person.setAge(25);
JOOR.openClass().extend(Person.class).method(
publicVoidMethod("shout").body(
"System.out.println(\"Hello!\");")
).create().get();
Person person = new Person();
JOOR.access(person).set("name", "John");
String name = JOOR.access(person).field("name").get();
