How to give priority to spring bean with same id?

Question

In our project we are using spring with Junit for Junit testing. We have used @ContextConfiguration annotation for loading multiple file. We have two classes AbstractContextJUnitTest and ContextJUnitTest and ContextJUnitTest extends AbstractContextJUnitTest.

During code flow I have noticed that same bean Id in multiple files with different bean types. When I am testing these Junits and getting the below error.

Error:

org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'voterId' is expected to be of type [com.spring.test2.Student] but was actually of type [com.spring.test2.Parent]

My requirement is Student bean should load with VoterId instead of Parent Bean.

Below are the java files and spring bean xml files:

test.xml:

<beans> 
    <context:annotation-config/>
    <bean id="voterId" class="com.spring.test2.Parent">
    <property name="Name" value="hai"/>
    </bean>
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
        <property name="url" value="jdbc:oracle:thin:@localhost:1521:xe" />
        <property name="username" value="system" />
        <property name="password" value="system" />
    </bean> 
    <bean id="transactionManager"

        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

        <property name="dataSource" ref="dataSource" />
    </bean> 
</beans>

test1.xml

<beans>

    <context:annotation-config/>
    <bean id="voterId" class="com.spring.test2.Student">
        <property name="name" value="hello"/>
        <property name="number" value="2080"/>
     </bean>
</beans>

AbstractContextJUnitTest.java

@ContextConfiguration(locations="classpath:/com/spring/test2/test1.xml")
public class AbstractContextJUnitTest extends AbstractTransactionalJUnit4SpringContextTests{


}

ContextJUnitTest.java

@ContextConfiguration(locations={"classpath:/com/spring/test2/test.xml"})
public class ContextJUnitTest extends AbstractContextJUnitTest{


    @Test
    public void testStudent(){
        Student stud=applicationContext.getBean("voterId",Student.class);
        assertEquals(stud.getNumber(), 2080);
    }
}

Answer 1

Did you tried @Primary?

<bean id="voterId" class="com.spring.test2.Student" primary="true">
        <property name="name" value="hello"/>
        <property name="number" value="2080"/>
</bean>

You have to use @Qualifier for com.spring.test2.Parent wherever you need.

Or you can get the bean with type as:

applicationContext.getBeansOfType(Student.class).get("voterI‌​d")