nestedgetters.java

		//Null pointer exception risk
		item.getOne().getTwo().whereIsTheData(); 
		
		//or ugly
				
		One one = item.getOne();
		if (one != null) {
			Two two = one.getTwo(); 
			if (two != null) {
				Data data = two.whereIsTheData();
				if (data == null) {
					throw new NullPointerException();
				}
			}
		}
		
		//or works only >=Java8 and still ugly
		

		Optional.ofNullable(item)
				.map(Item::getOne)
				.map(One::getTwo)
				.map(Two::whereIsTheData)
				.orElseThrow()