Hibernate Mysql autoReconect

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
  <session-factory>
    <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/contact?zeroDateTimeBehavior=convertToNull&amp;useUnicode=true&amp;autoReconnect=true&amp;characterEncoding=utf8</property>
    <property name="hibernate.connection.username">contactIT</property>
    <property name="hibernate.connection.password">dtxysq0</property>
    <property name="connection.pool_size">10</property>
    <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
    <property name="show_sql">true</property>
    <property name="hbm2ddl.auto">update</property>
    <property name="hibernate.connection.autocommit">false</property>
    <property name="current_session_context_class">thread</property>
    <mapping class="logic.Request"/>
    <mapping class="logic.Status"/>
    <mapping class="logic.Razdel"/>
  </session-factory>
</hibernate-configuration>