ciao!

allora ho aggiunto i get/set come è giusto che sia:
codice:
package com.mp.springtest.model;

import javax.persistence.*;
import java.util.List;

@Entity
@Table(name = "utenti")
public class Utente {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Integer id;

    private String email;
    private String password;

    @OneToMany(fetch = FetchType.EAGER, mappedBy = "utente")
    private List<Attivita> attivita;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public List<Attivita> getAttivita() {
        return attivita;
    }

    public void setAttivita(List<Attivita> attivita) {
        this.attivita = attivita;
    }
}
però adesso facendo così l'output json è "assurdo"; neanche lo posto perchè diventa enorme anche se ho solo 2 records.
e mi da questo errore:
codice:
2021-12-17 16:44:28.498  WARN 3424 --- [nio-8080-exec-3] .w.s.m.s.DefaultHandlerExceptionResolver : Failure while trying to resolve exception [org.springframework.http.converter.HttpMessageNotWritableException]

java.lang.IllegalStateException: Cannot call sendError() after the response has been committed
    at org.apache.catalina.connector.ResponseFacade.sendError(ResponseFacade.java:472) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver.sendServerError(DefaultHandlerExceptionResolver.java:552) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver.handleHttpMessageNotWritable(DefaultHandlerExceptionResolver.java:442) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver.doResolveException(DefaultHandlerExceptionResolver.java:209) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver.resolveException(AbstractHandlerExceptionResolver.java:142) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.handler.HandlerExceptionResolverComposite.resolveException(HandlerExceptionResolverComposite.java:80) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.DispatcherServlet.processHandlerException(DispatcherServlet.java:1327) ~[spring-webmvc-5.3.13.jar:5.3.13]
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