import lombok.*; import static lombok.AccessLevel.NONE; @Data @Getter(NONE) @Setter(NONE) class EqualsAndHashCodeWithSomeExistingMethods { int x; public int hashCode() { return 42; } } @Data @Getter(NONE) @Setter(NONE) class EqualsAndHashCodeWithSomeExistingMethods2 { int x; public boolean canEqual(Object other) { return false; } } @Data @Getter(NONE) @Setter(NONE) class EqualsAndHashCodeWithAllExistingMethods { int x; public int hashCode() { return 42; } public boolean equals(Object other) { return false; } } @Data @Getter(AccessLevel.NONE) @Setter(lombok.AccessLevel.NONE) class EqualsAndHashCodeWithNoExistingMethods { int x; }