# File lib/rgen/ecore/ecore.rb, line 83
        def instanceClass_derived
          map = {"java.lang.string" => "String", "boolean" => "RGen::MetamodelBuilder::DataTypes::Boolean", "int" => "Integer"}
          icn = instanceClassName
          icn = "NilClass" if icn.nil?
          icn = map[icn.downcase] if map[icn.downcase]
          eval(icn)
        end