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Date: Tue, 8 Aug 2006 05:37:16 -0700 (PDT)
From: "Paulex Yang (JIRA)" <jira@apache.org>
To: harmony-commits@incubator.apache.org
Subject: [jira] Assigned: (HARMONY-1102) [classlib][luni] Method
 readResolve() missing in java.util.Collections.EmptySet, EmptyList and
 EmptyMap.
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     [ http://issues.apache.org/jira/browse/HARMONY-1102?page=all ]

Paulex Yang reassigned HARMONY-1102:
------------------------------------

    Assignee: Paulex Yang

> [classlib][luni] Method readResolve() missing in java.util.Collections.EmptySet, EmptyList and EmptyMap.
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-1102
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1102
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: spark shen
>         Assigned To: Paulex Yang
>         Attachments: harmony-1102.diff
>
>
> Method readResolve() missing in java.util.Collections.EmptySet,
> EmptyList and EmptyMap.The instances of "public static final Map
> EMPTY_MAP","public static final Set EMPTY_Set" and "public static final List
> EMPTY_List" should be a singleton respectively according to the following test
> cases, and should keep as a singleton respectively  after de-serialization.
> JIRA testcase:
>    public void test_EmptyList_Singleton() throws Exception {
>         List theEmptyList = Collections.EMPTY_LIST;
>         List same1 = (List) SerializationTester
>                 .getDeserilizedObject(theEmptyList);
>         List same2 = (List) SerializationTester
>                 .getDeserilizedObject(theEmptyList);
>         assertSame(same1, same2);
>         assertSame(same1, theEmptyList);
>     }
>     public void test_EmptyMap_Singleton() throws Exception {
>         Map theEmptyMap = Collections.EMPTY_MAP;
>         Map sameMap1 = (Map) SerializationTester
>                 .getDeserilizedObject(theEmptyMap);
>         Map sameMap2 = (Map) SerializationTester
>                 .getDeserilizedObject(theEmptyMap);
>         assertSame(sameMap1, sameMap2);
>         assertSame(sameMap1, theEmptyMap);
>     }
>     public void test_EmptySet_Singleton() throws Exception {
>         Set theEmptySet = Collections.EMPTY_SET;
>         Set sameSet1 = (Set) SerializationTester
>                 .getDeserilizedObject(theEmptySet);
>         Set sameSet2 = (Set) SerializationTester
>                 .getDeserilizedObject(theEmptySet);
>         assertSame(sameSet1, sameSet2);
>         assertSame(sameSet1, theEmptySet);
>     }
> JIRA test result
>      RI 5.0 passes this test, but Harmony fails.
> I will attach a patch to fix this problem.
> Best regards
> Spark shen

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