java.util.concurrent.Executors#newSingleThreadExecutor()中的ThreadFactory生成的Thread不是守护线程，并且没有相应逻辑在Spring初始化异常出现时调起ExecutorService的shutdown方法，导致spring初始化失败进程依旧存在，无法通过进程是否存在判断程序启动是否正常。建议更换ThreadFactory。可通过错误的application.yml配置复现问题。
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