[Mondrian] Testing vs. retroweaver and 1.4

[Julian Hyde]

> So as it turns out, ReentrantReadWriteLock is not supported in  
> retroweaver 1.2.4, which is what mondrian is currently using. 
>  It is,  
> however, supported as of retroweaver 2.0.1, released on Sept. 
> 30, 2007  
> (this release fixed the bug that blocked Tushar from doing the same  
> thing way back in April 2007).
> 
> The current version of retroweaver is 2.0.7, released Oct. 14, 2008,  
> and also includes a much more recent (and more comprehensive) 
> version  
> of the concurrent backport.
> 
> Assuming I can get all tests to pass, is there any reason not to  
> upgrade mondrian to the latest version of retroweaver?

No reason - go ahead and give it a try.

Julian