The following compiles in 8 but fails to compile current in 9:

import java.util.ArrayList;
import java.util.List;

public class CaptureInference {
    public List<String> l;

    public CaptureInference() {
        l = new ArrayList<>(get(String.class));
    }

    public static <T> List<? extends T> get(Class<T> clazz) {
        return null;
    }
}

/*
String.class -> Class<t>
Class<String> -> Class<t>
{ t = String }

List<? extends t> -> Collection<? extends e>
{ t = String, z <: Object, List<z> = capture(List<? extends t>) }
List<z> -> Collection<? extends e>
{ t = String, z <: Object, z <: e, List<z> = capture(List<? extends t>) }

ArrayList<e> -> List<String>
{ t = String, e = String, z <: Object, z <: e, List<z> = capture(List<? extends t>) }
*/