java jdbc c3po config with connection provider

c3p0.hibernate.cfg.xml

<?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>

        <!-- Database connection settings -->
        <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
        <property name="connection.url">jdbc:hsqldb:hsql://localhost</property>
        <property name="connection.username">sa</property>
        <property name="connection.password"></property>
        <property name="connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property> <!-- NECESSARY TO USE C3P0 -->
        <property name="c3p0.acquire_increment">1</property> 
        <property name="c3p0.idle_test_period">100</property> <!-- seconds --> 
        <property name="c3p0.max_size">100</property> 
        <property name="c3p0.max_statements">0</property> 
        <property name="c3p0.min_size">10</property> 
        <property name="c3p0.timeout">100</property> <!-- seconds --> 
        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.HSQLDialect</property>

        <!-- Enable Hibernate's automatic session context management -->
        <property name="current_session_context_class">thread</property>

        <!-- Disable the second-level cache  -->
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>

        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">update</property>

        <mapping resource="org/hibernate/tutorial/domain/Event.hbm.xml"/>

    </session-factory>

</hibernate-configuration>