Stuff

<hibernate-mapping package="com.dayspringTech.jgabler.hypersonicHibernateSpringExample" default-access="field">
	
	<class name="Reader">
		<id name="id" column="reader_id">
			<generator class="native"/>
		</id>
		<property name="name" column="name"/>
<!-- WHEN I REMOVE THIS vvvvvvvvvvvvvvvvvvvvv -->
		<set name="books">                   
			 <key column="book_id"/>
			 <one-to-many class="Book"/>
		</set>
<!-- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-->
	</class>
	
</hibernate-mapping>