code: @Override
      public void constructCache(DefaultSolverScope solverScope) {
          long childSize = childMoveSelector.getSize();
          if (childSize > (long) Integer.MAX_VALUE) {
              throw new IllegalStateException("The selector (" + this
                      + ") has a childMoveSelector (" + childMoveSelector
                      + ") with childSize (" + childSize
                      + ") which is higher than Integer.MAX_VALUE.");
          }
          cachedMoveList = new ArrayList<>((int) childSize);
          childMoveSelector.iterator().forEachRemaining(cachedMoveList::add);
          logger.trace("    Created cachedMoveList: size ({}), moveSelector ({}).",
                  cachedMoveList.size(), this);
      }
docs: ************************************************************************