source: class SearchPackageClassUtilTest {
  
      @Test
      @DisplayName("不存在的包的处理")
      void searchPackageClassNotExits() {
  
target:         assertThrows(IllegalArgumentException.class, () -> {
              String[] nothings = SearchPackageClassUtil.searchPackageClass("nothing");
              for (String core : nothings) {
                  System.out.println(core);
              }
          });
      }
  
  }