Can spring boot's @Autowired inject dependencies from a jar(included in classpath) which is using GUICE for DI?

I have a base package which is using guice for DI. I am using this as a library in my other project where I am using Spring boot So can I autowire dependencies from that jar to my spring boot project.
Let's say the artifact of the base package is com.package.dependency and my spring boot project is com.example.spring-boot
I have tried

 @ComponentScan(basePackages = {"com.example.spring-boot","com.package.dependency"})

but it does not work.

You should be able to autowire dependencies from an external jar by using componentscan if there are classes annotated as autowire candidates (@Bean, @Component,..)

@ComponentScan would not find any candidates for autowiring unless there are any candidates which are qualified for autowiring is available in the external library.

Instead, you can define an @Bean annotation and return a new instance of the class you want to return in your @Configuration class.

@Configuration
public class MyConfig {

  @Bean
  public MyExternalBean myExternalBean() {
     return new MyExternalBean();
  }
}

and in the class you need to use it, write :

@Autowired
private MyExternalBean myExternalBean;

If you need autoconfiguration, refer : https://docs.spring.io/spring-boot/docs/2.0.0.M3/reference/html/boot-features-developing-auto-configuration.html. Here, you make use of spring.factories and specify the classes available for autoconfiguration so that you need not specify @ComponentScan in every project you use that external jar (applicable when the jar is developed by you or your company for use in other projects and not for third-party jars).

There isn't enough detail in the question to show a definitive answer, but have you seen Spring Guice (https://github.com/spring-projects/spring-guice)? It is designed for that kind of integration. You would need to identify the Guice Module(s) in com.package.dependency and register them as Spring components.