RangeExtension implements CustomTagExtension<RangeExtension.RangeTag> { public Class<RangeTag> getTagActionClass() { return RangeTag.class; }  Class<RangeTag> getTagActionClass(); String getTagName(); String getTagNameSpace(); List<Map<String, String>> pipelinePossibleStates(RangeTag action,
                                                            List<Map<String, String>> possibleStateList);  }
@Test public void actionClassTest() { RangeExtension rangeExtension = new RangeExtension(); Assert.assertEquals(RangeExtension.RangeTag.class, rangeExtension.getTagActionClass()); }