[jgrapht-users] Set implementation

[Ricardo R. <ric...@gm...>]

Hi,
I was wondering if there is a "suggested" way of choosing the Set
implementation
used by the Graph implementations (edge's and vertex's Sets). I am facing a
few problems with unit tests, because my program output keeps changing since
the iteration is not deterministic. So... a few questions:

   - Would it possible to simply change the Set implementation used by a
   graph implementation? e.g.: Force DefaultDirectedGraph to use LinkedHashSet
   for vertexSet() instead the default implementation?
   - Is there a significant impact, like a big performance degradation, or
   maybe operation's correctness?
   - If it cannot be done, is there a Graph implementation that provides
   deterministic iteration over these sets?

Thanks in advance for any help.

Regards,

-- 
Redder