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Error : org.hibernate.MappingException: Could not get constructor for org.hibernate.persister.entity.SingleTableEntityPersister

I am getting error when i run application.
This Is My Simple Hibernate Application.
When I Run My Application Is Eclipse IDE It Gives Me Error.
Error : org.hibernate.MappingException: Could not get constructor for org.hibernate.persister.entity.SingleTableEntityPersister
I Get This Error When I Run My Application.
This Is My Student Class.
Student.java
package com.nikunj.hibernate.demo.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name = "student")
public class Student {
#Id
#Column(name = "id")
private int id;
#Column(name = "first_name")
private String firstName;
#Column(name = "last_name")
private String lastName;
#Column(name = "email")
private String email;
public Student() {
// super();
}
public Student(String firstName, String lastName, String email) {
super();
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
#Override
public String toString() {
return "Student [id=" + id + ", firstName=" + firstName + ", lastName=" + lastName + ", email=" + email + "]";
}
}
This Is My Hibernate Configuration XML File.
hibernate.cfg.xml
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- JDBC Database connection settings -->
<property name="connection.driver_class">com.mysql.cj.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/hb_student_tracker?useSSL=false&serverTimezone=UTC</property>
<property name="connection.username">hbstudent</property>
<property name="connection.password">hbstudent</property>
<!-- JDBC connection pool settings ... using built-in test pool -->
<property name="connection.pool_size">1</property>
<!-- Select our SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Echo the SQL to stdout -->
<property name="show_sql">true</property>
<!-- Set the current session context -->
<property name="current_session_context_class">thread</property>
</session-factory>
</hibernate-configuration>
This Is My Main Class.
CreateStudentDemo.java
package com.nikunj.hibernate.demo;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import com.nikunj.hibernate.demo.entity.Student;
public class CreateStudentDemo {
public static void main(String[] args) {
try {
// Create session factory
SessionFactory factory = new Configuration().configure().addAnnotatedClass(Student.class)
.buildSessionFactory();
// Use the session object to save Java object
Session session = factory.getCurrentSession();
// Create a student object
System.out.println("Creating new student object...");
Student tempStudent = new Student("Nikunj", "Rathva", "Nikunjrathva108#gmail.com");
// Start a transaction
session.beginTransaction();
// Save the student object
System.out.println("Saving the student...");
session.save(tempStudent);
// Commit transaction
session.getTransaction().commit();
System.out.println("Done!");
factory.close();
} catch (Exception e) {
System.out.println("\n\n\nError : " + e + "\n\n\n");
e.printStackTrace();
}
}
}
```[Jar Files For Hibernate ORM][1]
[1]: https://i.stack.imgur.com/6iORy.png

Hibernate - MappingException - Unkown Entity

When trying to save Student using session, I get this error though I used
.addAnnotatedClass(Student.class)
in Configuration and used
<mapping class="com.hibernate_demo.models.Student"/>
in Hibernate.cfg.xml
Exception in thread "main" org.hibernate.MappingException: Unknown entity: com.hibernate_demo.models.Student
at org.hibernate.metamodel.model.domain.internal.MappingMetamodelImpl.entityPersister(MappingMetamodelImpl.java:589)
at org.hibernate.internal.SessionImpl.getEntityPersister(SessionImpl.java:1450)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:113)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:192)
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:36)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:177)
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:30)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:73)
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:107)
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:632)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:625)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:620)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:348)
at jdk.proxy2/jdk.proxy2.$Proxy35.save(Unknown Source)
at com.hibernate_demo.application.CreateStudentDemo.main(CreateStudentDemo.java:24)
Student.java
package com.hibernate_demo.models;
import javax.persistence.*;
#Entity
#Table(name = "Student")
public class Student {
#Id
private long id;
#Column(name="first_name", nullable = false)
private String firstName;
#Column(name="last_name", nullable = false)
private String lastName;
#Column(name="email", nullable = false)
private String email;
public Student(String firstName, String lastName, String email) {
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
}
public Student() {}
public long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
#Override
public String toString() {
return "Student{" +
"id=" + id +
", firstName='" + firstName + '\'' +
", lastName='" + lastName + '\'' +
", email='" + email + '\'' +
'}';
}
}
hibernate.cfg.xml
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property
name="hibernate.connection.url">jdbc:postgresql://localhost:5432/Hibernate</property>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.connection.password">admin</property>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<property name="hibernate.current_session_context_class">thread</property>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.format_sql">true</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<mapping class="com.hibernate_demo.models.Student"/>
</session-factory>
</hibernate-configuration>
CreateStudentDemo.java
package com.hibernate_demo.application;
import com.hibernate_demo.models.Student;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class CreateStudentDemo {
public static void main(String[] args) {
// Create Session Factory
SessionFactory factory = new Configuration()
.configure("hibernate.cfg.xml")
.addAnnotatedClass(Student.class)
.buildSessionFactory();
// Using session object to save Java object
try (factory; Session session = factory.getCurrentSession()) {
factory.openSession();
System.out.println("Creating new student object...");
Student tempStudent = new Student("Tomasz", "Jurek", "jur.tomasz13#gmail.com");
System.out.println("Begin transaction");
session.beginTransaction();
System.out.println("Saving student..");
session.save(tempStudent);
System.out.println("Commiting transaction");
session.getTransaction().commit();
System.out.println("Transaction commited");
}
}
}
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-
4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>Hibernate-Demo</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
</properties>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.hibernate.orm/hibernate-core -->
<dependency>
<groupId>org.hibernate.orm</groupId>
<artifactId>hibernate-core</artifactId>
<version>6.0.0.Beta3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.postgresql/postgresql -->
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.3.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.persistence/javax.persistence-api -->
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>2.2</version>
</dependency>
</dependencies>
</project>

Soo I used Hibernate 6.0.0.3 Beta Version, I changed it to latest non beta build (5.6.4.Final) and it worked.

Hibernate MAPPING error with persistence class

Hello everyone I am making a web-app and having some problems. I am sharing my codes as well as problems.
and here is my dao
package service;
import java.util.List;
import com.blog.mapperclass.UserData;
public interface UserService {
public void addUser(UserData data);
//public List <UserData> getAllUsers();
}
this is my DAO implementation
package com.blog.dao;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.cfg.Configuration;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean;
import org.springframework.stereotype.Component;
import com.blog.mapperclass.UserData;
import service.UserService;
#Component
public class Usersdao implements UserService{
SessionFactory session= new Configuration().configure("hibernate.cfg.xml").buildSessionFactory();
#Override
public void addUser(UserData data) {
Session ses=session.openSession();
ses.beginTransaction();
ses.save(data);
ses.getTransaction().commit();
System.out.println("user added");
}
}
my request mapping
#RequestMapping("/submit")
public String showSubmit(#ModelAttribute UserData data){
dao.addUser(data);
return "submit";
}
my cfg file
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//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:8086/blog</property>
<property name="connection.username">root</property>
<property name="connection.password">root</property>
<property name="connection.pool_size">1</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">validate</property>
<mapping class="com.blog.mapperclass.UserData"></mapping>
</session-factory>
</hibernate-configuration>
and here is the error
Constructor threw exception; nested exception is org.hibernate.MappingException: An AnnotationConfiguration instance is required to use <mapping class="com.blog.mapperclass.UserData"/>
and when I use :
SessionFactory session= new AnnotationConfiguration().configure("hibernate.cfg.xml").buildSessionFactory();
it gives error
Failed to instantiate [com.blog.dao.Usersdao]: Constructor threw exception; nested exception is java.lang.IncompatibleClassChangeError: Implementing class
And all my jars are updated
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.6.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-annotations</artifactId>
<version>3.5.5-Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.common</groupId>
<artifactId>hibernate-commons-annotations</artifactId>
<version>4.0.4.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.10.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-hibernate3</artifactId>
<version>2.0.8</version>
</dependency>
Please tell me the some solution for the problem I am newbie.
P.S : here is my pojo class
package com.blog.mapperclass;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import org.springframework.stereotype.Component;
#Entity
#Table(name="users")
#Component
public class UserData {
#Id
#Column
private String user_id;
#Column
private String name;
#Column
private String password;
#Column
private String email;
#Column
private String phone;
#Column
private int roll_id;
public UserData(String user_id, String name, String password, String email, String phone, int roll_id) {
super();
this.user_id = user_id;
this.name = name;
this.password = password;
this.email = email;
this.phone = phone;
this.roll_id = roll_id;
}
public UserData(){}
public UserData(String name, String password, String email, String phone) {
this.name = name;
this.password = password;
this.email = email;
this.phone = phone;
}
public UserData(String user_id, String name, String password, String email, String phone) {
super();
this.user_id = user_id;
this.name = name;
this.password = password;
this.email = email;
this.phone = phone;
}
public String getUser_id() {
return user_id;
}
public void setUser_id(String user_id) {
this.user_id = user_id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}
and my sql table :
click here for image

Error: Exception in thread "main" org.hibernate.MappingException: Unknown entity: com.hibernate.demo.model.Contact

Before you mark it duplicate, Please read below :
I have already tried all the given answers in similar Questions-
My Import for #Entity is correct:import javax.persistence.Entity;
Mapping for entity in hibernate.cfg.xml is present
Class is mapped from pkg level:"com.hibernate.demo.model.Contact"
AnnotationConfiguration is also not resolving the issue.
All the other second to third best answers were tried too.
Background : I have created a Spring-boot project and I am trying to learn hibernate, I am using H2 db and I am facing >Unknown entity: com.hibernate.demo.model.Contact
I have verified that mapping of the class is present in
hibernate.cfg.xml
<mapping class="com.hibernate.demo.model.Contact"/>
I have also verified that mapping has full pkg level mapping path
This is the my hibernate.cfg.xml
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">org.h2.Driver</property>
<property name="connection.url">jdbc:h2:./data/contactmgr</property>
<property name="connection.username">sa</property>
<property name="hibernate.default_schema">PUBLIC</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.H2Dialect</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">create</property>
<property name="show_sql">true</property>
<mapping class="com.hibernate.demo.model.Contact"/>
</session-factory>
</hibernate-configuration>
my Application.java Main class :-
package com.hibernate.demo;
import java.io.IOException; import java.io.RandomAccessFile; import java.nio.channels.FileLock;
import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.boot.registry.StandardServiceRegistryBuilder; import org.hibernate.cfg.Configuration; import org.hibernate.service.ServiceRegistry;
import com.hibernate.demo.model.Contact;
public class Application {
//Session factory
private static final SessionFactory sessionFactory = buildSesssionFactory();
public static void main(String[] args) throws Exception {
System.out.println("Session factory");
Contact contact = new Contact.ContactBuilder("Bob", "Marley").withEmail("bob.nik#gmail.com").withPhone(5859789733L).build();
//Open a Session
System.out.println("Open a Session");
Session session = sessionFactory.openSession();
//Begin a Transaction
System.out.println("Begin a Transaction");
session.beginTransaction();
//Use the session to save the contact
System.out.println("Use the session to save the contact");
try{
session.save(contact);
} catch(Exception e) {
// Close the session
shutdown();
throw e;
}
//Commit the transaction
System.out.println("Commit the transaction");
session.getTransaction().commit();
// Close the session
System.out.println("Close the session");
session.close();
}
private static SessionFactory buildSessionFactory()
{
try
{
if (sessionFactory == null)
{
Configuration configuration = new Configuration().configure(Application.class.getResource("/hibernate.cfg.xml"));
StandardServiceRegistryBuilder serviceRegistryBuilder = new StandardServiceRegistryBuilder();
serviceRegistryBuilder.applySettings(configuration.getProperties());
ServiceRegistry serviceRegistry = serviceRegistryBuilder.build();
sessionFactory = configuration.buildSessionFactory(serviceRegistry);
}
return sessionFactory;
} catch (Throwable ex)
{
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory()
{
return sessionFactory;
}
public static void shutdown()
{
getSessionFactory().close();
}
}
I am doing all the right things, I have already checked that the
#Entity import has right package
package com.hibernate.demo.model;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
#Entity
public class Contact {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
#Column
private String firstName;
#Column
private String lastName;
#Column
private String email;
#Column
private Long phone;
public Contact() {
}
public Contact(ContactBuilder contactBuilder) {
this.firstName = contactBuilder.firstName;
this.lastName = contactBuilder.lastName;
this.email = contactBuilder.email;
this.phone=contactBuilder.phone;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public Long getPhone() {
return phone;
}
public void setPhone(Long phone) {
this.phone = phone;
}
#Override
public String toString() {
return "Contact [id=" + id + ", firstName=" + firstName + ", lastName=" + lastName + ", email=" + email
+ ", phone=" + phone + "]";
}
public static class ContactBuilder {
private String firstName;
private String lastName;
private String email;
private Long phone;
public ContactBuilder(String firstName, String lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
public ContactBuilder withEmail(String email) {
this.email = email;
return this;
}
public ContactBuilder withPhone(Long phone) {
this.phone = phone;
return this;
}
public Contact build() {
return new Contact(this);
}
}
}

configuration.addAnnotatedClass(Contact.class);
resolves the issue, which is weird because it means
<mapping class="com.contact.model.Contact"/>
is not doing it for you. I don't like xml configuration anyways, good riddance.

Repeated column in mapping for entry error

I am doing a simple hibernate program in which I use Attribute override and Embedded object keys and I got this error:
Exception in thread "main" org.hibernate.MappingException: Repeated
column in mapping for entity: com.hibernate.Model.Employee column:
pincode (should be mapped with insert="false" update="false")
Employee.java
package com.hibernate.Model;
import javax.persistence.AttributeOverride;
import javax.persistence.AttributeOverrides;
import javax.persistence.Column;
import javax.persistence.Embedded;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table (name="EMPLOYEE")
public class Employee {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private int id;
private String firstName;
private String LastName;
private String email;
private String phoneNo;
#Embedded
#AttributeOverrides({
#AttributeOverride (name="City" , column=#Column(name="OFFICE_CITY")),
#AttributeOverride (name="State", column=#Column(name="OFFICE_STATE")),
#AttributeOverride (name="Country", column=#Column(name="OFFICE_COUNTRY")),
#AttributeOverride (name="pinCode", column=#Column(name="OFFICE_PINCODE"))})
private Address officeAddress;
#Embedded
private Address homeAddress;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return LastName;
}
public void setLastName(String lastName) {
LastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPhoneNo() {
return phoneNo;
}
public void setPhoneNo(String phoneNo) {
this.phoneNo = phoneNo;
}
public Address getOfficeAddress() {
return officeAddress;
}
public void setOfficeAddress(Address officeAddress) {
this.officeAddress = officeAddress;
}
public Address getHomeAddress() {
return homeAddress;
}
public void setHomeAddress(Address homeAddress) {
this.homeAddress = homeAddress;
}
}
Address.java
package com.hibernate.Model;
import javax.persistence.Embeddable;
#Embeddable
public class Address {
private String City;
private String State;
private String Country;
private String pincode;
public String getCity() {
return City;
}
public void setCity(String city) {
City = city;
}
public String getState() {
return State;
}
public void setState(String state) {
State = state;
}
public String getCountry() {
return Country;
}
public void setCountry(String country) {
Country = country;
}
public String getPincode() {
return pincode;
}
public void setPincode(String pincode) {
this.pincode = pincode;
}
}
Hibernate.jsp
package com.hibernate.Test;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import com.hibernate.Model.Address;
import com.hibernate.Model.Employee;
public class HibernateTest {
public static void main(String[] args) {
Employee emp = new Employee();
Address addr=new Address();
emp.setFirstName("Vikas");
emp.setLastName("Bhardwaj");
emp.setEmail("bhardwajvikas93#gmail.com");
emp.setPhoneNo("9741178304");
addr.setCity("MEHRE");
addr.setCountry("INDIA");
addr.setState("HIMACHAL");
addr.setPincode("174305");
emp.setHomeAddress(addr);
Address addr2 = new Address();
addr2.setCity("Bangalore");
addr2.setCountry("INDIA");
addr2.setState("KARNATKA");
addr2.setPincode("560008");
emp.setOfficeAddress(addr2);
SessionFactory sf = new Configuration().configure().buildSessionFactory();
Session ssn = sf.openSession();
ssn.beginTransaction();
ssn.save(emp);
ssn.getTransaction().commit();
ssn.close();
}
}
cfg.xml
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/HibernateDb</property>
<property name="connection.username">root</property>
<property name="connection.password">vikas</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">create</property>
<!-- Names the annotated entity class -->
<mapping class="com.hibernate.Model.Employee"/>
<mapping class="com.hibernate.Model.Address"/>
</session-factory>
</hibernate-configuration>
In this program by embedable, I am printing both member variables in one table.
The task is with address class, I am printing two addresses. One is for home address and one is for office address by using AttributeOverrides but it gives me the error mentioned above.

You need to specify a valid property name pincode
#AttributeOverride (name="pinCode", column=#Column(name="OFFICE_PINCODE"))
need to change to
#AttributeOverride (name="pincode", column=#Column(name="OFFICE_PINCODE"))
Try to specify #AttributeOverrides for homeAddress, if it will not help.