class path resource [META-INF/persistence.xml] cannot be opened because it does not exist

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "file:src/main/webapp/WEB-INF/classes/applicationContext.xml",
                                    "file:src/main/webapp/WEB-INF/config/spring-security.xml"})
public class KeyServiceTests {

    @Test
    public void testKeyCreation() {
        ConfigurableApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
        KeyService keyService = (KeyService) context.getBean("keyService");
        // Some testing goes on here
    }
}

<bean id="entityManagerFactory"
    class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="persistenceUnitName" value="hsqldb-ds" />
    <property name="persistenceXmlLocation" value="classpath:META-INF/persistence.xml"/>
</bean>

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.0"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="hsqldb-ds" transaction-type="RESOURCE_LOCAL">

    <description>HSQLDB Persistence Unit</description>
    <provider>org.hibernate.ejb.HibernatePersistence</provider>

    <properties>
        <property name="javax.persistence.jdbc.driver" value="org.hsqldb.jdbcDriver" />
        <property name="javax.persistence.jdbc.url" value="jdbc:hsqldb:mem:demodb" />
        <property name="javax.persistence.jdbc.user" value="sa" />
        <property name="javax.persistence.jdbc.password" value="" />
        <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
        <property name="hibernate.hbm2ddl.auto" value="validate" />
        <property name="hibernate.show_sql" value="false" />
        <property name="hibernate.format_sql" value="true" />
        <property name="hibernate.transaction.flush_before_completion" value="true" />
    </properties>
</persistence-unit>

@ContextConfiguration(locations = {"classpath:applicationContext.xml"})