code: @Test public void testAppendParameters1() throws Exception {
    Map<String,String> parameters=new HashMap<String,String>();
    parameters.put("default.num","one");
    parameters.put("num","ONE");
    AbstractConfig.appendParameters(parameters,new ParameterConfig(1,"hello/world",30,"password"),"prefix");
    TestCase.assertEquals("one",parameters.get("prefix.key.1"));
    TestCase.assertEquals("two",parameters.get("prefix.key.2"));
    TestCase.assertEquals("ONE,one,1",parameters.get("prefix.num"));
    TestCase.assertEquals("hello%2Fworld",parameters.get("prefix.naming"));
    TestCase.assertEquals("30",parameters.get("prefix.age"));
    TestCase.assertFalse(parameters.containsKey("prefix.key-2"));
    TestCase.assertFalse(parameters.containsKey("prefix.secret"));
  }
  