Erro Spring 2.5 + jpa

Assuntos Gerais
#1

meu applicationContext XML

<?xml version="1.0" encoding="UTF-8"?> 

<bean id="AthenaDataSource"
	class="org.springframework.jdbc.datasource.DriverManagerDataSource">
	<property name="driverClassName" value="oracle.jdbc.OracleDriver" />
	<property name="url" value="jdbc:oracle:thin:@localhost:1521:XE" />
	<property name="username" value="restorant" />
	<property name="password" value="brutal" />
</bean>

<util:list id="persistentXmlPaths">
	<value>src/META-INF/persistence.xml</value>
</util:list>

<bean id="defaultPersistentUnitName" class="java.lang.String">
	<constructor-arg value="AthenaPersistence" />
</bean>

<bean id="entityManagerFactory"
	class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
	autowire-candidate="default">
	<!--  <property name="persistenceUnitManager" ref="persistenceUnitManager"/>-->
	<property name="persistenceUnitName" value="AthenaPersistence" />
</bean>

<util:map id="dataSources">
	<entry key="AthenaDataSource">
		<ref local="AthenaDataSource" />
	</entry>
</util:map>

<context:component-scan base-package="br.com.restorant.service.impl" />

meu Persistence.xml

<?xml version="1.0" encoding="UTF-8"?> oracle.toplink.essentials.PersistenceProvider AthenaDataSource 
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import br.com.restorant.entity.Category;
import br.com.restorant.service.CategoryService;


public class Execute {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		ApplicationContext context = new ClassPathXmlApplicationContext("ApplicationContext.xml");
		CategoryService service = (CategoryService)context.getBean("CategoryServiceImpl");
		for (Category c : service.findAll()){
			System.out.println(c);
		}

	}

}

Ao executar ocorre esse erro

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [ApplicationContext.xml]: Invocation of init method failed; nested exception is org.springframework.jdbc.datasource.lookup.DataSourceLookupFailureException: Failed to look up JNDI DataSource with name 'AthenaDataSource'; nested exception is javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file:  java.naming.factory.initial
#2