xxl-job执行器启动报错 ERROR - null

环境 xxl-job 2.2.0 ,springboot版本 2.3., 调度器启动正常
执行器启动始终会在destroy() 方法报错，registryThread空指针

18:20:34.102 logback [main] INFO   - Started ChahuashiServiceApplication in 0.954 seconds (JVM running for 1.657)
18:20:34.106 logback [SpringContextShutdownHook] INFO   - Shutting down ExecutorService 'applicationTaskExecutor'
18:20:34.110 logback [SpringContextShutdownHook] ERROR  - null
: null
	at (:117)
	at (:262)
	at (:124)
	at (:158)
	at (:85)
	at (:57)
	at (:258)
	at (:579)
	at (:551)
	at (:1089)
	at (:512)
	at (:1082)
	at (:1061)
	at (:1030)
	at $(:949)
18:20:34.110 logback [xxl-job, executor JobLogFileCleanThread] INFO   - >>>>>>>>>>> xxl-job, executor JobLogFileCleanThread thread destory.
18:20:34.110 logback [xxl-job, executor TriggerCallbackThread] INFO   - >>>>>>>>>>> xxl-job, executor callback thread destory.
18:20:34.110 logback [Thread-80] INFO   - >>>>>>>>>>> xxl-job, executor retry callback thread destory.

Process finished with exit code 0

反复断点调试，发现debug时，在start()方法内稍作停留即可避免执行destroy()时空指针，于是最简单的解决方法就有了。
修改核心模块的 ，在start()方法后添加延迟

	// start
    @Override
    public void afterSingletonsInstantiated() {

        // init JobHandler Repository
        /*initJobHandlerRepository(applicationContext);*/

        // init JobHandler Repository (for method)
        initJobHandlerMethodRepository(applicationContext);

        // refresh GlueFactory
        GlueFactory.refreshInstance(1);

        // super start
        try {
            super.start();
            //延迟1s，解决执行器destroy()空指针报错
            Thread.sleep(1000);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    // destroy
    @Override
    public void destroy() {
        super.destroy();
    }

后续来了
之前XxlJobSpringExecutor 注册Bean没加serAddress,以为默认为空自动获取，后来加上了(address); 再没遇见上述错误，具体实现以后再看吧，先把这坑填了

 @Bean
    public XxlJobSpringExecutor xxlJobExecutor() {
        logger.info(">>>>>>>>>>> xxl-job config init.");
        //调用核心方法包的xxlJobSpringExecutor类
        XxlJobSpringExecutor xxlJobSpringExecutor = new XxlJobSpringExecutor();
        xxlJobSpringExecutor.setAdminAddresses(adminAddresses);
        xxlJobSpringExecutor.setAppname(appname);
        xxlJobSpringExecutor.setAddress(address);
        xxlJobSpringExecutor.setIp(ip);
        xxlJobSpringExecutor.setPort(port);
        xxlJobSpringExecutor.setAccessToken(accessToken);
        xxlJobSpringExecutor.setLogPath(logPath);
        xxlJobSpringExecutor.setLogRetentionDays(logRetentionDays);
        return xxlJobSpringExecutor;
    }