Guice implicitly assigns a value to AssistedInject variable

[Yifat Levy]

when I run the code below, I get the output "Bar got 1234".
it looks like Guice can't find a binding for num2, and implicitly assigns the value of num1.
Is this part of the AssistedInject feature? I couldn't find any mention of this in the wiki.
changing num2's type to float throws this exception (as I'd expected):
"No implementation for java.lang.Float annotated with @com.google.inject.assistedinject.Assisted(value=) was bound."

class Foo {
    @Inject
    public Foo(@Assisted final int num1, final Bar bar) {    }    interface FooFactory {
        Foo create(final int num1);
    }
}class Bar {
    @Inject
    public Bar(@Assisted final int num2) {
        System.out.println("Bar got "+num2);
    }
}class BillingModule extends AbstractModule {
    @Override
    protected void configure() {
        install(new FactoryModuleBuilder()
                .implement(Foo.class, Foo.class)
                .build(Foo.FooFactory.class));
    }
}public class App
{
    public static void main( String[] args ) {
        Injector injector = Guice.createInjector(new BillingModule());
        Foo.FooFactory fooFactory = injector.getInstance(Foo.FooFactory.class);
        fooFactory.create(1234);
    }
}