[jira] Commented: (HARMONY-1492) [classlib][luni] Constructor of HashMap throw unexpected exception

["spark shen (JIRA)" <ji...@apache.org>]

    [ http://issues.apache.org/jira/browse/HARMONY-1492?page=comments#action_12442228 ] 
            
spark shen commented on HARMONY-1492:
-------------------------------------


   [[ Old comment, sent by email on Tue, 19 Sep 2006 13:55:25 +0800 ]]

http://issues.apache.org/jira/browse/HARMONY-1492?page=comments#action_124356
31 ]
consider this a valid issue. What's a real use case for this type of
sub-classing?
What if change the RuntimeException into UnsupportedOperationException.
There are cases when put method is not supported by HashMap subclass.

Best regards



--
Spark Shen
China Software Development Lab, IBM


> [classlib][luni] Constructor of HashMap throw unexpected exception
> ------------------------------------------------------------------
>
>                 Key: HARMONY-1492
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1492
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: spark shen
>         Attachments: 1492.diff
>
>
> Below tests pass on RI, but fails on Harmony:
> public class SubMapTest extends TestCase {
>     public void testSubclass() {
>         HashMap map = new HashMap();
>         map.put("a", "a");
>         SubMap map2 = new SubMap(map);
>     }
> }
> class SubMap<K, V> extends HashMap<K, V> {
>     public SubMap(Map<? extends K, ? extends V> m) {
>         super(m);
>     }
>     public V put(K key, V value) {
>         throw new RuntimeException();
>     }
> }
> I will attach a patch soon.

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