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multithread-exception's Introduction

高级多线程练习:异常处理

小明写了一个多线程的MultiThreadServiceDataProcessor,但是却没有达到预期的目的。请帮助小明修复该问题。

在提交Pull Request之前,你应当在本地确保所有代码已经编译通过,并且通过了测试(mvn clean verify)


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multithread-exception's Issues

为啥出现名为PotentialStubbingProblem异常

我把老师的MultiThreadServiceDataProcessor类中的代码改成了

public class MultiThreadServiceDataProcessor {
    // 线程数量
    private final int threadNumber;
    // 处理数据的远程服务
    private final RemoteService remoteService;
    // 所有数据处理成功标志位
    private boolean dataHandleSuccess = true;

    public MultiThreadServiceDataProcessor(int threadNumber, RemoteService remoteService) {
        this.threadNumber = threadNumber;
        this.remoteService = remoteService;
    }

    // 将所有数据发送至远程服务处理。若所有数据都处理成功(没有任何异常抛出),返回true;
    // 否则只要有任何异常产生,返回false
    public boolean processAllData(List<Object> allData) {
        int groupSize =
                allData.size() % threadNumber == 0
                        ? allData.size() / threadNumber
                        : allData.size() / threadNumber + 1;
        List<List<Object>> dataGroups = Lists.partition(allData, groupSize);

        try {
            List<Thread> threads = new ArrayList<>();
            for (List<Object> dataGroup : dataGroups) {
                Thread thread = new Thread(() -> dataGroup.forEach(data -> {
                    try {
                        remoteService.processData(data);
                    } catch (Exception e) {
                        dataHandleSuccess  = false;
                        System.out.println(e.getClass().getSimpleName());
                    }
                }));
                thread.start();
                threads.add(thread);
            }

            for (Thread thread : threads) {
                thread.join();
            }
        } catch (Exception e) {
            dataHandleSuccess = false;
        }
        return dataHandleSuccess;
    }
}

但是用老师的测试代码测试时发现除了捕获到IllegalStateException异常还捕获到了下面这个名称的异常这是为什么?

PotentialStubbingProblem

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