com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 34,431,201 milliseconds ago.  The last packet sent successfully fully to the server was 34,431,201 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to to avoid this problem.

 
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <!--
        From MySQL document -
         Should the driver try to re-establish stale and/or dead connections? If enabled the driver will throw an
         exception for a queries issued on a stale or dead connection, which belong to the current transaction, but will
         attempt reconnect before the next query issued on the connection in a new transaction. <b>The use of this
         feature is not recommended, because it has side effects related to session state and data consistency when
         applications don't handle SQLExceptions properly </b>
         http://dev.mysql.com/doc/refman/5.0/en/connector-j-reference-configuration-properties.html
         -->
        <property name="url" value="jdbc:mysql://localhost:3306/mydb"/>
        <property name="username" value="username"/>
        <property name="password" value="password"/>

    </bean>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="packagesToScan" value="com.channel.model"/>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>
                <prop key="hibernate.current_session_context_class">thread</prop>
                <prop key="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</prop>
                <prop key="hibernate.show_sql">false</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
                <prop key="hibernate.query.substitutions">true 'T', false 'F'</prop>

                <prop key="c3p0.min_size">5</prop>
                <prop key="c3p0.max_size">20</prop>
                <prop key="c3p0.timeout">1800</prop>
                <prop key="c3p0.max_statements">50</prop>
                <prop key="hibernate.c3p0.preferredTestQuery">SELECT 1 FROM DUAL;</prop>
                <prop key="hibernate.c3p0.testConnectionOnCheckout">true</prop>
                <prop key="hibernate.c3p0.validate">true</prop>
                <prop key="connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</prop>
            </props>
        </property>
    </bean>