Abrindo várias conexões

Quando rodo o projeto, ele vem normalmente com 3 conexões (Aba estatísticas), porém assim que clico em home, vou olhar em estatísticas e está 4, e toda vez que clico em home aumenta.

Classe JPA Configurator

@Bean(destroyMethod = "close") 
public DataSource getDataSource() throws PropertyVetoException {
    ComboPooledDataSource dataSource = new ComboPooledDataSource();

    dataSource.setDriverClass("com.mysql.jdbc.Driver");
    dataSource.setJdbcUrl("jdbc:mysql://localhost/projeto_jpa");
    dataSource.setUser("root");
    dataSource.setPassword("password");

    dataSource.setMinPoolSize(3);//numero mínimo de conexões
    dataSource.setMaxPoolSize(5);//numero máximo de conexões

    return dataSource;
}

@Bean
public LocalContainerEntityManagerFactoryBean getEntityManagerFactory(DataSource dataSource) {
    LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();

    entityManagerFactory.setPackagesToScan("br.com.caelum");
    entityManagerFactory.setDataSource(dataSource);

    entityManagerFactory
            .setJpaVendorAdapter(new HibernateJpaVendorAdapter());

    Properties props = new Properties();

    props.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQL5InnoDBDialect");
    props.setProperty("hibernate.show_sql", "true");
    props.setProperty("hibernate.hbm2ddl.auto", "create-drop");
    props.setProperty("hibernate.cache.use_second_level_cache", "true");
    props.setProperty("hibernate.cache.region.factory_class", "org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory");
    props.setProperty("hibernate.cache.use_query_cache", "true");
    props.setProperty("hibernate.generate_statistics", "true");

    entityManagerFactory.setJpaProperties(props);
    return entityManagerFactory;
}