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From "Geoffrey De Smet (JIRA)" <j...@apache.org>
Subject [jira] Created: (COLLECTIONS-286) New util method: CollectionUtils.getSingleton(List<T> singletonList) which returns the single object in the list or throws an exception
Date Tue, 19 Feb 2008 15:52:43 GMT
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: 3.3



    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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