In this article, we are going to learn how to configure Spring Boot to handle exceptions, including custom ones, and customize the error responses and handling.
Contingencies vs. Faults
Introduction
Since the invention of the Java language, there has been a long-standing debate about checked versus unchecked/runtime exceptions. Some people argue that checked exceptions promote a better design. Others feel that checked exceptions get in the way, especially as systems mature and refactor over time, and therefore unchecked exceptions are better. The Effective Java Exceptions article, settles this debate once and for all: both checked and unchecked exceptions are acceptable, and each has its purpose within an application. I highly recommend reading that article. I will refer back to its concepts and terminology going forward.