New util method: CollectionUtils.getSingleton(List<T> singletonList) which
returns the single object in the list or throws an exception
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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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