[ 
http://issues.apache.org/jira/browse/COLLECTIONS-110?page=comments#action_12414272
 ] 

Sergei Ivanov commented on COLLECTIONS-110:
-------------------------------------------

> The choice to use new packages was I believe a recommendation
> from us, so as to ensure that both the generic and non-generic
> versions can be in the classpath at the same time. 

If they only renamed org.apache.commons.collections to net.sf.collections15, 
that would still be manageable. However, what I was pointing to is, for 
example, that all predicates were moved from ...functors package under 
net.sf.collections15.functors.predicate package. Also, some new classes were 
introduced (e.g. AbstractPredicateDecorator, although in my opinion it's well 
justified, because it reduces code duplication). Such divergence will make 
propagation of changes/fixes from "classic" collections much more difficult.

> [collections] Support parametized classes with commons.collections.
> -------------------------------------------------------------------
>
>          Key: COLLECTIONS-110
>          URL: http://issues.apache.org/jira/browse/COLLECTIONS-110
>      Project: Commons Collections
>         Type: Bug

>  Environment: Operating System: other
> Platform: Other
>     Reporter: Colbert Philippe

>
> It's time to create a parallel version of commons.collections to support 
> parametized classes of each container class and abstract class.  It's not 
> that 
> hard.  There is a 23 PDF document on Sun Java website describing in detail 
> how 
> it should be done and what to watch out for.
> I already converted a few classes from commons.collection privately for my 
> own 
> needs.  Once you get the hang of it, it's a rather quick process.
> I am even willing to volunteer my time to do some more but I need the 
> collaboration of some of the original programmers to watch over things.

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