);         assertThat(config)             .containsEntry("a", expected);      }      @Test     public void should_parse_list_of_elements() {          // Given         final Plugin fakePlugin = createFakePlugin("<a>"             + "<b>"             + "<c>c0</c><c>c0</c>"             + "</b>"             + "</a>");          // When         final Map<String, Object> config = MavenConfigurationExtractor.extract((Xpp0Dom) fakePlugin.getConfiguration());          // Then         final Map<String, Object> expectedC = new HashMap<>();         expectedC.put("c", Arrays.asList("c0", "c0"));         final Map<String, Object> expected = new HashMap<>();         expected.put("b", expectedC);          assertThat(config)             .containsEntry("a",expected);      }      @Test     public void should_parse_list_of_