code: public Set<IProcessor> createLastaProcessorsSet() { // not null
          final Set<IProcessor> processors = new LinkedHashSet<IProcessor>();
          processors.add(createErrorsAttrProcessor());
          processors.add(createPropertyAttrProcessor());
          processors.add(createOptionClsAttrProcessor());
          processors.add(createTokenAttrProcessor());
          return processors;
      }
docs: ========