Hello Simone

As told in a previous email (before Lausane), I commited 
BufferedCoordinateOperationFactory as a replacement of 
BufferedDefaultCoordinateOperationFactory, and deprecated the later. The main 
difference is that BufferedCoordinateOperationFactory is a wrapper around an 
arbitrary CoordinateOperationFactory, instead of extending 
DefaultCoordinateOperationFactory. This is important because the actual backing 
factory is not always DefaultCoordinateOperationFactory. It can also be 
AuthorityBackedFactory is some EPSG authority factory is avaialble on the 
classpath. This lead to more accurate transformations.

In addition, BufferedCoordinateOperationFactory is automatically registered for 
use by FactoryFinder, so users don't need to know at all about this class. Just 
use CoordinateOperationFactory as usual, no need to care about buffering; this 
is done automatically.

Could you tell me when we can remove the old 
BufferedDefaultCoordinateOperationFactory please? And SoftHashMap as well 
(replaced by SoftValueHashMap for consistency with WeakValueHashMap, avoiding 
licensing issue and I also took the opportunity for implementing entrySet()).

        Thanks,

                Martin

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