“How to fix ‘ProductName is in unnamed module of loader 'app'' error in JAVA”

“How to fix ‘ProductName is in unnamed module of loader 'app'' error in JAVA”

https://github.com/Aliaksandr3by/demo

java.lang.ClassCastException: class com.example.demo.entity.ProductName cannot be cast to class com.example.demo.entity.ProductName (com.example.demo.entity.ProductName is in unnamed module of loader 'app'; com.example.demo.entity.ProductName is in unnamed module of loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @4be9a66c) at java.base/java.util.ArrayList.forEach(ArrayList.java:1540)

public class HibernateUtil {

    public void setUp(String hibernateCfgXml, IHibernateUtil iHibernateUtil) throws Exception {

//      SessionFactory sessionFactory = new Configuration()
//              .configure(hibernateCfgXml)
//              .buildSessionFactory();

        try (final StandardServiceRegistry registry = new StandardServiceRegistryBuilder()
                .configure(Objects.requireNonNull(hibernateCfgXml, "hibernate.cfg.xml"))
                .build();
        ) {

            try (SessionFactory sessionFactory = new MetadataSources(registry)
                    .buildMetadata()
                    .buildSessionFactory();
            ) {

                iHibernateUtil.Func(sessionFactory);

            } catch (Exception e) {

                e.printStackTrace();
                StandardServiceRegistryBuilder.destroy(registry);
                throw e;

            }

        } catch (Exception e) {

            e.printStackTrace();
            throw e;

        }

    }
}

/---
    public GreetingController() {
        try {
            new HibernateUtil().setUp("hibernate.buhloasp.cfg.xml", (sessionFactory) -> {
                try (Session session = sessionFactory.openSession()) {

                    List<ProductName> data = session
                            .createQuery("from ProductName")
                            .list();
                    data.forEach(e -> System.out.println(e.getName()));
                }
            });
        } catch (Throwable e) {
            e.printStackTrace();
        }
    }
/-----

package com.example.demo.entity;

import lombok.*;
import org.hibernate.annotations.GenericGenerator;

import javax.persistence.*;
import java.io.Serializable;


@ToString(of = {"id", "name"})
@EqualsAndHashCode
@AllArgsConstructor
@NoArgsConstructor
@RequiredArgsConstructor
@Table(schema = "dbo", name = "PRODUCTS_NAMES")
@Entity
public class ProductName implements Serializable {

    @Id
    @Setter
    @Getter
    @Column(name = "ID_PRODUCT", unique = true)
    @GeneratedValue(generator="increment")
    @GenericGenerator(name="increment", strategy = "increment")
    private int id;

    @Setter
    @Getter
    @NonNull
    @Column(name = "NAME_PRODUCT")
    private String name;
}



<?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>

        <!-- hibernate.productttr43.cfg.xml -->

        <!-- START - SQL Server Connection Properties -->
        <!-- SQL Server - Database Specific Property Details - Need to Change according to
        Database Vendor -->

        <property name="dialect">org.hibernate.dialect.SQLServerDialect</property>
        <property name="connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property>

        <property name="connection.url">
            jdbc:sqlserver://localhost\SQLEXPRESS2017:49172;databaseName=buhloasp;integratedSecurity=false;encrypt=false;trustServerCertificate=false;
        </property>
        <property name="connection.username">guest</property>
        <property name="connection.password">guest</property>
<!--        <property name="hibernate.default_schema">dbo</property>-->
        <!--   -->
        <property name="hibernate.show_sql">true</property>
        <property name="format_sql">true</property>
        <property name="current_session_context_class">thread</property>
        <property name="connection.pool_size">100</property>

        <property name="hibernate.hbm2ddl.auto">update</property>

        <mapping class="com.example.demo.entity.ProductName"/>

<!--        <property name="default_entity_mode">dynamic-map</property>-->
<!--        <mapping resource="entity/ProductName.hbm.xml"/>-->

    </session-factory>
</hibernate-configuration>