IPlan parametrization is messed

[dumoulin]

If I declare a design like that:

IExperimentalDesign design

Then, if I want to access to the factors of the plan, I haven't found a better solution than:

((IPlan<IFactor<?, ?>>) design.getMethod()).getFactors()

This cast should be not needed! I think that we have to find a better API design in IPlan parametrization…

[dumoulin]

Ok, this code works fine with r2587:

design.getMethod()).getFactors()