How to initiate the destruction of a Prototype instance created with Spring?

The Spring container manages the lifecycle of singleton-scoped beans, including their destruction. For prototype-scoped beans, Spring creates instances on request but does not track their lifecycle after creation, so automatic destruction methods are not called.

To initiate the destruction of a prototype instance, it must be done manually. This is usually achieved by calling a method annotated with @PreDestroy or another custom method responsible for resource cleanup.

Example:

@Component
@Scope("prototype")
public class MyPrototypeBean {
    public void cleanup() {
        // cleanup code, resource release
    }
}

// Somewhere in the code where the bean is obtained:
MyPrototypeBean bean = context.getBean(MyPrototypeBean.class);
// Use the bean
// ...
// Explicitly call the cleanup method
bean.cleanup();

For automatic invocation of destruction methods, you can implement the DisposableBean interface and call the destroy() method manually.

In summary: for prototype beans in Spring, destruction of the instance and invocation of cleanup methods must be initiated manually, as the container does not manage their lifecycle after creation.