Inference difference between `javac` and `ecj` involving 2 wild cards

Eclipse reports "Cannot infer type argument(s) for map(Function)" here, while `javac` will compile this code. I think `javac` is correct here.

Changing the `BootableService` to accept `(TestServiceProvider` fixes the problem.

import java.util.Optional;

public class InferenceBug {

interface TestServiceProvider {
}

public void bla() {
Optional> result = Optional.empty();

result.map(provider -> new BootableService<>(provider)); // <-- eclipse error here
}

static class BootableService {
TestServiceProvider provider;

public BootableService(TestServiceProvider provider) {
}
}
}