org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set

public class JPAConfiguration {

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {

        LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();

        JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();

        factoryBean.setJpaVendorAdapter(vendorAdapter);

        DriverManagerDataSource dataSource = new DriverManagerDataSource();

        dataSource.setUsername("root");
        dataSource.setPassword("");
        dataSource.setUrl("jdbc:mysql://localhost:3306/casadocodigo");
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");


        factoryBean.setDataSource(dataSource);

        Properties props = new Properties();

        props.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
        props.setProperty("hibernate.show_sql", "true");
        props.setProperty("hibernate.hbm2ddl.auto", "update");

        factoryBean.setPackagesToScan("br.com.casadocodigo.loja.model");

        return factoryBean;
    }

}

Foi feita a correção do erro em questão. Porém, apareceu um novo erro: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class br.com.casadocodigo.loja.conf.JPAConfiguration: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set

Resolvido! Não havia setado as propriedades do meu JPA.

factoryBean.setJpaProperties(props);