[jira] [Resolved] (COLLECTIONS-461) splitmap.TransformedMap is not really a Map

["Thomas Neidhart (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COLLECTIONS-461?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Neidhart resolved COLLECTIONS-461.
-----------------------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 4.x)
                   4.0

Applied in r1482544.
                
> splitmap.TransformedMap is not really a Map
> -------------------------------------------
>
>                 Key: COLLECTIONS-461
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-461
>             Project: Commons Collections
>          Issue Type: Bug
>            Reporter: Sebb
>             Fix For: 4.0
>
>
> splitmap.TransformedMap is part of the Get/Put hierarchy, but it does not behave like a proper Java Map. 
> In particular, java.util.Map.put(K, V) returns V.
> However the collections Put interface returns Object.
> As far as I can tell, this was done in order to be able to include TransformedMap in the hiearchy. But the side effect is to break the generics for all the non-transformer maps in the hierarchy.
> Maybe there should be a separate PutTransformed interface which has the appropriate generic types, i.e.
> public T put(K key, V value)

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