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https://issues.apache.org/jira/browse/COLLECTIONS-304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Neidhart reopened COLLECTIONS-304:
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> SetUniqueList set method use corrupts uniqness
> ----------------------------------------------
>
> Key: COLLECTIONS-304
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-304
> Project: Commons Collections
> Issue Type: Bug
> Affects Versions: 3.2
> Environment: JDK 1.6/Windows/Eclipse Ganymede
> Reporter: Rafał Figas
> Fix For: 4.0
>
> Attachments: COLLECTIONS-304.patch, Commons-304-test.diff
>
>
> When set method is used to put element (Strawberry) on list, then it is
> possible to add the same element (Strawberry) with add method. Also you
> cannot add element (Lemon) that has been once removed with set method.
> Reproduction code below:
> List<String> list = new LinkedList<String>();
> SetUniqueList decoratedList = SetUniqueList.decorate(list);
> decoratedList.add("Apple");
> decoratedList.add("Lemon");
> decoratedList.add("Orange");
> System.out.println(decoratedList.toString());
> decoratedList.set(1, "Strawberry");
> System.out.println(decoratedList.toString());
> decoratedList.add(1, "Strawberry");
> System.out.println(decoratedList.toString());
> decoratedList.add(1, "Lemon");
> System.out.println(decoratedList.toString());
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