params.put("param1.object", "obj");
params.put("param1.object.param1", "param1");
params.put("param1.object.param2", "param2");
params.put("param1.object.param2.3", "param3");
assertEquals(6, params.all().size());
assertTrue(params._contains("param1"));
assertTrue(params._contains("param1.object"));
assertTrue(params._contains("param1.test"));
assertTrue(params._contains("param1.object.param1"));