From elena.votchennikova at oracle.com  Fri Jul 18 13:26:13 2014
From: elena.votchennikova at oracle.com (elena votchennikova)
Date: Fri, 18 Jul 2014 17:26:13 +0400
Subject: [type-annos-observers] AnnotatedWildcardType upper bounds question
Message-ID: <53C92075.7030304@oracle.com>

Hi all,

I have a question regarding AnnotatedWildcardType upper bounds.
Could you please look at the following example.

Minimized test:
-------------------------------------------------------------------------------
public class Test {

     public Test(List<? super String> p) {}

     public static void main(String[] args) throws NoSuchMethodException {
         Constructor constructor = Test.class.getConstructor(List.class);
         AnnotatedParameterizedType at = (AnnotatedParameterizedType) 
constructor.getAnnotatedParameterTypes()[0];
         System.out.println(((AnnotatedWildcardType) 
at.getAnnotatedActualTypeArguments()[0]).getAnnotatedUpperBounds().length);

         ParameterizedType t = (ParameterizedType) 
constructor.getGenericParameterTypes()[0];
         System.out.println(((WildcardType) 
t.getActualTypeArguments()[0]).getUpperBounds().length);
     }

}
-------------------------------------------------------------------------------

Output (tested with jdk8b132):
-------------------------------------------------------------------------------
0
1
-------------------------------------------------------------------------------

As I understand output should be:
-------------------------------------------------------------------------------
1
1
-------------------------------------------------------------------------------

According to the spec for j.l.r.WildcardType:
"Note that if no upper bound is explicitly declared, the upper bound 
is|Object.|"
And looks like this should be also true for j.l.r.AnnotatedWildcardType. 
Or I'm mistaken?

By the way, if we have wildcard without definition of lower and upper 
bounds, wildcardAnnotatedType.getAnnotatedUpperBounds().length will 
return 1.

Thank you,
Elena