'No serializer found for class org.hibernate.proxy.pojo.bytebuddy.ByteBuddyInterceptor and no properties discovered to create BeanSerializer

I am using Spring Boot with Spring Data JPA. However, when I try to retrieve data from my Repository, the following error is thrown: 

Type definition error: [simple type, class org.hibernate.proxy.pojo.bytebuddy.ByteBuddyInterceptor]; nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.hibernate.proxy.pojo.bytebuddy.ByteBuddyInterceptor and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: com.example.model.Pokemon$HibernateProxy$DuUnG9om[\"hibernateLazyInitializer\"])

Most of the "duplicates" I see have relationships, but my Pokemon class does not. Is there something that I am missing?

My Pokemon class is a simple POJO class:

package com.example.model;

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

@Entity
public class Pokemon implements Serializable {

    /**
     * 
     */
    private static final long serialVersionUID = -2228784815938588107L;

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

    private String name;
    private Double attack, defense, speed;

    public Pokemon() {

    }

    public Pokemon(int id, String name, double attack, double defense, double speed) {
        super();
        this.id = id;
        this.name = name;
        this.attack = attack;
        this.defense = defense;
        this.speed = speed;
    }

    // Getters and setters
}
javaspringhibernatespring-data-jpa


Solution 1:[1]

I was able to solve the issue by using the @JsonIgnoreProperties annotation.

// package and imports

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;

@JsonIgnoreProperties({"hibernateLazyInitializer"})
@Entity
public class Pokemon implements Serializable {

// rest of code

}

Solution 2:[2]

Maybe try to add annotation to your fields, to map the column names with the fields @Column(name="name") private String name;

or did you put the annotation to the getters and setters?

Solution 3:[3]

With your repository, when you retrieve one Pokemon use the method :

findById(id).get();

Solution 4:[4]

What solved this issue for me was using jackson-datatype-hibernate5 and registering this module in objectmapper

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1
Solution 2 Stefan Creanga
Solution 3 Yu Hao
Solution 4 kqr

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