Map<String, Object> parameters = new HashMap<String, Object>();
parameters.put("user.address.city", "London");
parameters.put("user.address['postal']", "QJR387");
parameters.put("user.name", "Superman");
Action action = new SimpleAction();
pi.setParameters(action, stack, parameters);
assertEquals(true, pi.isOrdered());
assertEquals(3, actual.size());
assertEquals("London", actual.get("user.address.city"));