java.lang.Exception: exception just for purpose of providing stack trace

 JDBC transaction marked for rollback-only (exception provided for stack trace)

java.lang.Exception: exception just for purpose of providing stack trace

Check your Entity mine was becauseof enum 

@Data
@NoArgsConstructor
@Entity
@Table
public class UserTokenModel {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
//    @NotBlank
    private String userEmail;
    private String token;
    private boolean enabled;

    @NotBlank
    @Enumerated(EnumType.STRING)
    private EmailType emailType;