Rollback is not working in #Transactional annotated service. Spring + Hibernate - spring

Question

In my code the service method savePerson is annotated with #Transactional. Inside this method a Person entity is persisted and inmediately a Runtime exception is intentionally throwed. I suposse the transaction should not be commited but the Person entity is persisted in database....rollback is not working and I dont know why.
This is my Hibernate Configuration:
package newp;
import java.util.Properties;
import javax.sql.DataSource;
import org.apache.commons.dbcp.BasicDataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.orm.hibernate5.HibernateTransactionManager;
import org.springframework.orm.hibernate5.LocalSessionFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
#Configuration
#EnableTransactionManagement
public class HibernateConf {
#Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
sessionFactory.setDataSource(dataSource());
sessionFactory.setPackagesToScan(new String[]{"newp"});
sessionFactory.setHibernateProperties(hibernateProperties());
return sessionFactory;
}
#Bean
public DataSource dataSource() {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName("com.mysql.cj.jdbc.Driver");
dataSource.setUrl("jdbc:mysql://localhost:3306/poas");
dataSource.setUsername("admin");
dataSource.setPassword("admin");
return dataSource;
}
#Bean
public PlatformTransactionManager hibernateTransactionManager() {
HibernateTransactionManager transactionManager= new HibernateTransactionManager();
transactionManager.setSessionFactory(sessionFactory().getObject());
return transactionManager;
}
private final Properties hibernateProperties() {
Properties hibernateProperties = new Properties();
hibernateProperties.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
hibernateProperties.setProperty("hibernate.show_sql", "true");
return hibernateProperties;
}
}
This is my service:
package newp.services;
import javax.transaction.Transactional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import newp.dao.PersonDao;
import newp.model.Person;
#Service
public class PersonService{
#Autowired
PersonDao dao;
#Transactional
public void savePerson(Person p) {
dao.savePerson(p);
throw new RuntimeException();
}
}
The DAO
package newp.dao;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import newp.entities.PersonEntity;
import newp.model.Person;
#Repository
public class PersonDao {
#Autowired
SessionFactory sessionFactory;
public void savePerson(Person person) {
Session s = sessionFactory.getCurrentSession();
PersonEntity p=new PersonEntity();
p.setAge(person.getAge());
p.setName(person.getName());
p.setSurname(person.getSurname());
s.saveOrUpdate(p);
}
}

Answer 1

You are probably using tables with the MyISAM storage engine which does not support transactions: https://stackoverflow.com/a/8036049/412446