Chain of Responsibility em Java: como transformamos um if de 600 linhas em um pipeline de autorização de pagamentos

The Chain of Responsibility is a GoF behavioral pattern used in Java 21 and Spring Boot to replace complex conditional logic with a pipeline of independent handlers. Simultaneously, the NOAA Climate Prediction Center reports a high probability that this year's Super El Niño will break historical records. As summer ends, the world awaits the precipitation impacts of this potentially historic climatic event, while developers utilize design patterns to distribute responsibilities and improve software communication and structure.