How to select a specific bean implementation when registering new instances with the same type in a library?

In Java, when using dependency injection libraries (such as Spring), it is possible to register multiple beans of the same type but with different names or annotations. To select a specific implementation during injection, the following are used:

• Named beans: when registering a bean, a name is specified, and during injection, the @Qualifier annotation with this name is used.
• Custom annotations: create custom annotations to mark beans and use them during injection.

Example using @Qualifier:

@Component("serviceA")
public class ServiceA implements MyService {}

@Component("serviceB")
public class ServiceB implements MyService {}

@Autowired
@Qualifier("serviceB")
private MyService myService;

Thus, it is possible to explicitly specify which bean to inject if there are multiple implementations of the same interface.