The following minimized test shows that j.l.r.Constructor.getAnnotatedParameterTypes returns wrong array:

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public class MinimizedTest {

    public static void main(String[] args) throws NoSuchMethodException {
        Constructor constructor = Inner.class.getConstructor(MinimizedTest.class, Object.class);
        for (AnnotatedType at : constructor.getAnnotatedParameterTypes()) {
            System.out.println(at.getType());
            System.out.println(Arrays.toString(at.getAnnotations()));
            System.out.println();
        }
    }

    class Inner {
        public Inner(@Anno Object param) {}
    }

    @Retention(RetentionPolicy.RUNTIME)
    @Target(ElementType.TYPE_USE)
    @interface Anno {

    }
}
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The output will be:
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class MinimizedTest
[@MinimizedTest$Anno()]

class java.lang.Object
[]
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As we can see, the first annotated parameter type has a type MinimizedTest (this is receiver) and has one annotation, but the receiver parameter is not annotated. The second parameter type doesn't has annotation, but it should.
Receiver parameter is not a formal parameter, so it's annotated type should not be presented here.
The spec of j.l.r.Executable.getAnnotatedParameterTypes says:
"Returns an array of AnnotatedType objects that represent the use of types to specify formal parameter types of the method/constructor represented by this Executable. "

Checked with JDK9 b53.
Failed JCK tests is under development.