Migrated attachment for Guice issue 472, comment 0

child_injecting_parent.txt

public class A {

    public static void main(String[] args) {
        Injector injector = Guice.createInjector();
        Injector childInjector = injector.createChildInjector();
                
        System.out.println("Parent:   " + injector.hashCode());
        System.out.println("Child:    " + childInjector.hashCode());

        A a = childInjector.getInstance(A.class);
        a.doStuff();
    }
    
    private final Injector injector;
    
    @Inject
    A(Injector injector) {
        this.injector = injector;
    }
    
    public void doStuff() {
        System.out.println("Injected: " + injector.hashCode());
    }
    
}