Hibernate is continuing to spew SQL traces to stdout, and I can't figure out how to change a Hibernate configuration property when it's hidden behind a JPA adapter. This is the Spring bean for the entityManagerFactory:
<bean id="entityManagerFactory" 
    class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="dataSource" ref="ssapDataSource"/>
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" >
            <property name="showSql" value="false"/>
        </bean>
    </property>
</bean>
Even with the showSql property set to false, Hibernate keeps printing SQL.
I've tried making a hibernate.properties file in my classpath with "hibernate.show_sql=false", but it didn't pick that up either.