package test;

import models.Hero;
import services.HeroService;

import java.sql.SQLException;

public class DBtest {

public static void main(String[] args) throws SQLException {

    HeroService heroService = new HeroService();
    Hero hero = new Hero("Cap","Marvel",100,"Very old hero",true);
    heroService.saveHero(hero);
}

Exception in thread "main" java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file javax/persistence/PersistenceException
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at utils.HibernateSessionFactoryUtil.getSessionFactory(HibernateSessionFactoryUtil.java:18)
at dao.HeroDao.save(HeroDao.java:17)
at services.HeroService.saveHero(HeroService.java:20)
at test.DBtest.main(DBtest.java:14)

package models;


import javax.persistence.*;
import java.util.ArrayList;
import java.util.List;
@Entity
@Table (name = "heroes")


public class Hero {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
public int id;
@Column(name = "name")
public String name;
@Column(name = "universe")
public String universe;
@Column(name = "power")
public int power;
@Column(name = "description")
public String description;
@Column(name = "alive")
public boolean alive;

public Hero(){
}


public Hero(String name, String universe, int power, String description, boolean alive){
    this.id = id;
    this.name = name;
    this.universe = universe;
    this.power = power;
    this.description = description;
    this.alive = alive;
}


public String getName(){
    return name;
}

public String getUniverse(){
    return universe;
}

public int getID(){
    return id;
}

public int getPower(){
    return power;
}

public String getDescription(){
    return description;
}

public boolean getAlive(){
    return alive;
}




/*public void setId(int id){
    this.id = id;
}
*/

public void setName(String name){
    this.name = name;
}

public void setUniverse(String universe){
    this.universe = universe;
}

public void setPower(int power){
    this.power = power;
}

public void setDescription(String description){
    this.description = description;
}

public void setAlive(boolean alive){
    this.alive = alive;
}

package utils;


import models.Hero;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;

public class HibernateSessionFactoryUtil {

private static SessionFactory sessionFactory;

private HibernateSessionFactoryUtil() {}

public static SessionFactory getSessionFactory() {
    if (sessionFactory == null) {
        try {
            Configuration configuration = new Configuration().configure();
            configuration.addAnnotatedClass(Hero.class);
            StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties());
            sessionFactory = configuration.buildSessionFactory(builder.build());

        } catch (Exception e) {
            System.out.println("Исключение!" + e);
        }
    }
    return sessionFactory;
}

<dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.12</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>5.3.7.Final</version>
    </dependency>

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

    <hibernate-configuration>

    <session-factory>

    <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="connection.url">jdbc:mysql://localhost:3306/myherotest</property>
    <property name="connection.username">root</property>
    <property name="connection.password">root</property>
    <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
    <property name="show_sql">true</property>

    </session-factory>

    </hibernate-configuration>