@Test public void shouldReturnTrueIfCollectionIsNull(){ List<String> nullList = null; Assert.assertTrue(CollectionUtil.isNullOrEmpty(nullList)); }
public static boolean isNullOrEmpty(Collection<?> collection){ return collection == null || collection.isEmpty(); }
CollectionUtil { public static boolean isNullOrEmpty(Collection<?> collection){ return collection == null || collection.isEmpty(); } }
CollectionUtil { public static boolean isNullOrEmpty(Collection<?> collection){ return collection == null || collection.isEmpty(); }  }
CollectionUtil { public static boolean isNullOrEmpty(Collection<?> collection){ return collection == null || collection.isEmpty(); }  static boolean isNullOrEmpty(Collection<?> collection); static boolean hasElements(Collection<?> collection); }
CollectionUtil { public static boolean isNullOrEmpty(Collection<?> collection){ return collection == null || collection.isEmpty(); }  static boolean isNullOrEmpty(Collection<?> collection); static boolean hasElements(Collection<?> collection);  }