Scoped generic class fails to build

[bubenheimer]

The following fails to build:

@Component
interface FooComp {
    Foo<Integer> foo();
}

@Reusable
class Foo<T> {
    @Inject
    Foo() {}
}

Error:(26, 44) error: incompatible types: Provider<Foo<Object>> cannot be converted to Provider<Foo<Integer>>

However, when adding another @Inject element or removing scoping it succeeds:

@Reusable
class Foo<T> {
    @Inject
    Foo() {}

    @Inject
    void postConstruct() {}
}

The problem in the first case is that Dagger is overeager to use a single static factory instance for generating instances of scoped generic classes.

[bubenheimer]

I guess all that's really missing in the generated code is a typecast to Provider to achieve erasure bliss. Didn't spot it right away.

[bubenheimer]

The issue does not occur with -source 1.8. It does with -source 1.7.