PUB-756: Generating large cathegoricals Java code.
Fix of HEX-1695 - pojo now contains code which
apply correction of resulting probabilities
based on class distributions.
PUB-756 : switch from map to simple String array allocated and filled
by a set of classes to avoid overfilling constant pools.

Limit for each class static initializer is set to 3000 strings which can
be filled.