import java.util.List;
import org.checkerframework.checker.nullness.qual.*;
import org.checkerframework.framework.qual.DefaultQualifier;
import org.checkerframework.framework.qual.TypeUseLocation;
class MethodTypeVars4 {
@DefaultQualifier(value = NonNull.class, locations = TypeUseLocation.IMPLICIT_UPPER_BOUND)
interface I {
<T> T doit();
<T> List<T> doit2();
<T extends @Nullable Object> T doit3();
}
void f1(I i) {
// s is implicitly Nullable
String s = i.doit();
List<String> ls = i.doit2();
String s2 = i.doit3();
}
void f2(I i) {
@NonNull String s = i.doit();
s = i.doit3();
//:: error: (type.argument.type.incompatible)
List<@Nullable String> ls = i.doit2();
}
}