spring issue when upgrading to hibernate 4

gistfile1.txt

package persist.integration.audit;

import persist.integration.hibernateentities.CodeIntegrationTest;

import org.hibernate.SessionFactory;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.transaction.TransactionConfiguration;



@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(inheritLocations=false,locations={
		"/hibernate/spring-SF-tests.xml",
		"/hibernate/spring-transaction.xml", 
		"/hibernate/testBeans.xml"
		,"/hibernate/spring-audit.xml",
		"/hibernate/iwrs-mail-beans-test.xml",
		"/hibernate/fake-audit-meaning.xml"
})
@TransactionConfiguration(transactionManager="txManager", defaultRollback=true)
public class CodeAuditIntegrationTest extends CodeIntegrationTest {
	
	@Autowired
	private SessionFactory auditFactory;
	

	@Before
	public void cleanAudit(){
		auditFactory.getCurrentSession().createQuery("delete from AuditLogRecord").executeUpdate();
	}

	@Test
	public void clinicalTrialAssociationTest() {
		super.clinicalTrialAssociationTest();
	}

}


-----------------------XML--------------------
	<bean id="txManager"
		class="org.springframework.orm.hibernate4.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<tx:annotation-driven transaction-manager="txManager" />

        <bean id="sessionFactory" scope="singleton"
		class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2dll}</prop>
				<prop key="hibernate.hbm2ddl.import_files">${hibernate.sql_scripts}</prop>
			</props>
		</property>
		<property name="packagesToScan">...</property>
		<property name="annotatedPackages">...</property>
		<property name="mappingLocations">...</property>

		<property name="dataSource" ref="c3p0DataSource" />
		 <property name="entityInterceptor" ref="auditInterceptor" /> 
	</bean>

<bean id="auditFactory" scope="singleton"
		class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
		<property name="exposeTransactionAwareSessionFactory">   -->needs to be removed in hibernate4!
			<value>true</value>
		</property>
		<property name="mappingLocations">...</property>
		<property name="packagesToScan">...</property>
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2dll}</prop>
			</props>
		</property>
		<property name="dataSource" ref="c3p0DataSource" />
	</bean>

Is it compulsory to use annotations in hibernate?.

Actually in our project we are not using annotations. Can we upgrade the project to hibernate 4. I resolved the all the compilation issue. But when i do real time testing dao's are not loading . I don't know what happend. Can anybody help on this.
I am overriding the setmappingresources(String... resources) method from the localsessionfactorybean class of hiberate4. Please help me in this area. How to load the mappingsources?