Tutorial: using Lombok to reduce boilerplate code in Java | Gualtiero Testa

Tutorial: using Lombok to reduce boilerplate code in Java | Gualtiero Testa

Always specify the fields you want in @EqualsAndHashCode or, in another words, never use the default @EqualsAndHashCode behaviour (all fields). Very important if the class is a JPA entity, where generated ID field should not be used for equality.

Always exclude heavy fields (collections, arrays) in @EqualsAndHashCode and @ToString unless it is really necessary.

Use @NoArgsConstructor when an empty constructor is needed (like for XML conversions and in JavaBeans)

Never use Lombok @Data. As mentioned before, with the @Data annotation we cannot specify the fields for @EqualsAndHashCode and @ToString (see previous suggestions).

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