What is "Introduce Null Object" and how does it reduce null checks?

This notion is similar to entities or DTOs, in my opinion data classes serve their purpose as representing a read-only entity in the system. Jan 29, 2017 ... One common argument is that private methods violate the Single Responsibility Principle. The SRP states that each class should do only one thing ... Code Smells: Iteration. This is part of a series investigating code that looks suspicious ("code smells"), and exploring possible alternatives. Code Smells: ... Mar 21, 2025 ... Typically, code smells stem from a failure to write source code in accordance with necessary standards. In other cases, it means that the ... "Code smell" is an evocative term for that vague feeling of unease we get when reading certain bits of code. It's not necessarily wrong, but neither is it ... 8.5.1 Code Smells about Code in General · Duplicate Code (same code in multiple places). · Long Lines (more than 100 characters or so). · Inconsistent ... In computer programming, a code smell is any characteristic in the source code of a program that possibly indicates a deeper problem. ... Determining what is and ... Jul 10, 2019 ... Enterprise software commentator Martin Fowler gives us a definition for code smell when he says that: a code smell is a surface indication ... Jul 7, 2016 ... A code smell is an observable feature of the code (the smoke) that often belies a deeper existing problem (the fire). Aug 7, 2017 ... In this paper we present a large scale empirical investigation on the diffuseness of code smells and their impact on code change- and fault-proneness.