optaplanner-core/src/main/java/org/optaplanner/core/config/heuristic/selector/move/generic/PillarSwapMoveSelectorConfig.java
@Override
    public MoveSelector buildBaseMoveSelector(HeuristicConfigPolicy configPolicy,
            SelectionCacheType minimumCacheType, boolean randomSelection) {
        PillarSelectorConfig pillarSelectorConfig_ = pillarSelectorConfig == null ? new PillarSelectorConfig()
                : pillarSelectorConfig;
        PillarSelector leftPillarSelector = pillarSelectorConfig_.buildPillarSelector(configPolicy,
                minimumCacheType, SelectionOrder.fromRandomSelectionBoolean(randomSelection), variableNameIncludeList);
        PillarSelectorConfig rightPillarSelectorConfig = defaultIfNull(secondaryPillarSelectorConfig, pillarSelectorConfig_);
        PillarSelector rightPillarSelector = rightPillarSelectorConfig.buildPillarSelector(configPolicy,
                minimumCacheType, SelectionOrder.fromRandomSelectionBoolean(randomSelection), variableNameIncludeList);
        List<GenuineVariableDescriptor> variableDescriptorList = deduceVariableDescriptorList(
                leftPillarSelector.getEntityDescriptor(), variableNameIncludeList);
        return new PillarSwapMoveSelector(leftPillarSelector, rightPillarSelector, variableDescriptorList,
                randomSelection);
    }
@Override
    public MoveSelector buildBaseMoveSelector(HeuristicConfigPolicy configPolicy,
            SelectionCacheType minimumCacheType, boolean randomSelection) {
        PillarSelectorConfig pillarSelectorConfig_ = pillarSelectorConfig == null ? new PillarSelectorConfig()
                : pillarSelectorConfig;
        PillarSelector leftPillarSelector = pillarSelectorConfig_.buildPillarSelector(configPolicy,
                minimumCacheType, SelectionOrder.fromRandomSelectionBoolean(randomSelection), variableNameIncludeList);
        PillarSelectorConfig rightPillarSelectorConfig = defaultIfNull(secondaryPillarSelectorConfig, pillarSelectorConfig_);
        PillarSelector rightPillarSelector = rightPillarSelectorConfig.buildPillarSelector(configPolicy,
                minimumCacheType, SelectionOrder.fromRandomSelectionBoolean(randomSelection), variableNameIncludeList);
        List<GenuineVariableDescriptor> variableDescriptorList = deduceVariableDescriptorList(
                leftPillarSelector.getEntityDescriptor(), variableNameIncludeList);
        return new PillarSwapMoveSelector(leftPillarSelector, rightPillarSelector, variableDescriptorList,
                randomSelection);
    }
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