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https://issues.apache.org/jira/browse/COLLECTIONS-286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12752054#action_12752054
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François LEIBER commented on COLLECTIONS-286:
---------------------------------------------
This would be incredibly useful if indeed it takes a Collection instead of a
List, otherwise I don't see the point.
Voting for it, if the title is changed.
> New util method: CollectionUtils.getSingleton(List<T> singletonList) which
> returns the single object in the list or throws an exception
> ---------------------------------------------------------------------------------------------------------------------------------------
>
> Key: COLLECTIONS-286
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-286
> Project: Commons Collections
> Issue Type: New Feature
> Reporter: Geoffrey De Smet
> Fix For: Generics
>
> Attachments: extract.svn.diff
>
>
> public <T> T getSingleton(List<T> singletonList)
> {
> if (singletonList.size() != 1)
> {
> throw new IllegalArgumentException("The singletonList size ("
> + singletonList.size() + ") should be 1.");
> }
> return singletonList.get(0);
> }
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