Spring bean references across multiple thread

I have come across a scenario as below:

MyBean - Defined in XML Configuration.

I need to inject MyBean into multiple threads. But my requirements is: 1) The reference retrieved in two different threads should be different 2) But I should get the same reference irrespective how many times I retrieve bean from single thread.

Eg :

Thread1 {

    run() {
        MyBean obj1 = ctx.getBean("MyBean");
        ......
        ......
        MyBean obj2 = ctx.getBean("MyBean");
    }
}

Thread2 {

    run(){
        MyBean obj3 = ctx.getBean("MyBean");
    }
}

So Basically obj1 == obj2 but obj1 != obj3