重复计划：实体总是被分配给过度约束的对象

Question

方法

按照以下步骤尝试实施重复计划：

1. 使用初始输入数据启动求解器，并使其运行一段时间

2. 终止求解器-终止之前，将bestsolution保存在scoreDirectorFactory.buildScoreDirector（）

3. 使用solver.addProblemFactChange（AddCustomerProblemFactChange实例）添加新客户

遵循该方法的optaplanner指南7.10第16.5.1节。 我们在项目中使用过度约束的计划

代码

终止方法（使用rest调用）：

 VehicleRoutingSolution sol = solver.getBestSolution();
 scoreDirectorFactory = solver.getScoreDirectorFactory();
 director = scoreDirectorFactory.buildScoreDirector();
 director.setWorkingSolution(sol);
 solver.terminateEarly();

CustomerList-我要在求解器启动后添加的客户列表

for (Customer customer : customerList) {
          AddCustomerProblemFactChange add = new 
          AddCustomerProblemFactChange(customer);
          solver.addProblemFactChange(add);
            }

        if (!solver.isSolving()) {
            VehicleRoutingSolution solution = solver.solve(director.getWorkingSolution());
        }

AddCustomerProblemFactChange

public class AddCustomerProblemFactChange implements ProblemFactChange<VehicleRoutingSolution> {

private Customer customer;

public AddCustomerProblemFactChange1(Customer customer) {
    this.customer = customer;
}

@Override
public void doChange(ScoreDirector<VehicleRoutingSolution> scoreDirector) {
    VehicleRoutingSolution solution = scoreDirector.getWorkingSolution();

    solution.setCustomerList( new ArrayList<>(solution.getCustomerList()));
    //solution.buildConnectedCustomer(this.distances, this.customer);

    scoreDirector.beforeEntityAdded(customer);
    solution.getCustomerList().add(customer);
    scoreDirector.afterEntityAdded(customer);
    scoreDirector.triggerVariableListeners();
}
}

日志

13:31:01.738 [-8080-exec-7] INFO  Solving restarted: time spent (3), best score (-1init/0hard/0medium/-39840000soft), environment mode (REPRODUCIBLE), random (JDK with seed 0).
13:31:01.749 [-8080-exec-7] DEBUG     CH step (0), time spent (14), score (0hard/-70medium/-39840000soft), selected move count (11), picked move (TimeWindowedCustomer-123{null -> Vehicle-2}).

问题

上述方法的问题是，在添加新客户的同时，总是总是将新添加的实体分配给过度约束的对象（车辆2）。我无法理解optalanner在施工启发式阶段如何选择Vehicle分配给客户。