Autoboxing in spring bean

I am using spring 4.0.5 and Java 1.7.0-51. I am creating a spring bean of type Integer and setting the value through its constructor as shown in Applicationcontext.xml.

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
    ">

    <context:component-scan base-package="com.spring.beans"></context:component-scan>
    <bean id="user.min" class="java.lang.Integer"> <constructor-arg value="30" /></bean>
    <bean id="machine.min" class="java.lang.Integer"> <constructor-arg value="30" /></bean>
</beans>

      

        
        
        
      

    

I am injecting these beans into my class where I have already set some defaults.

    @Component
    public class Token {

        @Autowired(required = false)
        @Qualifier("user.min")
        private Integer userMin = 480;
        @Autowired(required = false)
        @Qualifier("machine.min")
        private int machineMin = 480;

    public Integer getUserMin() {
        return userMin;
    }
    public void setUserMin(Integer userMin) {
        this.userMin = userMin;
    }
    public int getMachineMin() {
        return machineMin;
    }
    public void setMachineMin(int machineMin) {
        this.machineMin = machineMin;
    }

      

        
        
        
      

    

When I print these values, I get the following values.

public static void main(String[] args){
    ApplicationContext context  = new ClassPathXmlApplicationContext("Applicationcontext.xml");
    Token t = context.getBean(Token.class);

    System.out.println("User:"+t.getUserMin());
    System.out.println("Machine:"+t.getMachineMin());
}

Output:
User:30
Machine:480

      

        
        
        
      

    

The value for userMin (class Integer) is entered from the bean, but the value for machineMin (primitive int) is not entered.

The primitive type is 'int'

not autoboxed before Integer

. Is this a bug in spring or is the way I did the setup wrong? I am working on Windows 7 (Eclipse Juno). Someone please help.