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11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
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23 
24 /*
25  * @test
26  * @bug 4453032
27  * @summary overridden interface method causes the compiler to reject cast
28  * @author gafter
29  *
30  * @compile  InterfaceCast1.java
31  */
32 
33 public class InterfaceCast1 {
main(String[] args)34     public static void main(String[] args) throws Exception {
35     }
36 }
37 
38 interface Collection<E> {
toArray(T[] a)39     <T> T[] toArray(T[] a);
40 }
41 
42 interface Set<E> extends Collection<E> {
toArray(T[] a)43     <T> T[] toArray(T[] a);
44 }
45 
46 interface SortedSet<E> extends Set<E> {
47 }
48 
49 class TreeSet<E> {
addAll(Collection<E> c)50     public void addAll(Collection<E> c) {
51         if (c instanceof SortedSet) {
52             SortedSet<E> ss = (SortedSet<E>) c;
53         }
54     }
55 }
56