ListmyList = new ArrayList<>(); myList.add("item1"); Assert.notEmpty(myList, "List cannot be empty");
String myString = "hello"; Assert.notEmpty(myString, "String cannot be empty");
String[] myArray = {"item1", "item2"}; Assert.notEmpty(myArray, "Array cannot be empty");This method is part of the Spring Framework library, specifically the org.springframework.util package.