java - 为什么我的返回值没有被正确识别？

Question

MyClass.java

protected LinkedBlockingDeque<JobSet> currentWork = new LinkedBlockingDeque<JobSet>();

public LinkedBlockingDeque<JobSet> getCurrentWork() {
    return currentWork;
}

用法

public boolean completeAllWork(CompleteWorkRequest request) {
    for (JobSet jobSet : getCurrentWork()) {
        //if it's approved, find the workflow process it needs to go to next and put it there
        if (request.getApprovedJobSets().contains(jobSet.getUuid().toString())) {
            sendToNextWorkflowProcess(jobSet);
        } else {
            getCurrentWork().remove(jobSet);
            logger.info("Rejected JobSet: " + jobSet.getUuid());
        }
    }

    getWorkFromQueue();

    return true;
}

它期待一个 JobSet 但得到一个 Object。我似乎很清楚它返回了正确的对象，所以我错过了什么？

Error: java: incompatible types
  required: com.production.model.JobSet
  found:    java.lang.Object

Answer 1

根据评论:使用 Iterator 应该可以解决问题。我的猜测是在迭代列表并同时删除一个项目时存在干扰，导致循环读取已删除的值。