owen200008 opened a new pull request #9701:
URL: https://github.com/apache/dubbo/pull/9701


   ## What is the purpose of the change
   fix bug lazy client ThreadlessExecutor.sharedExecutor is null error
   
   发现的现象:
   lazy模式的dubboreference第一次调用不会返回直到超时(实际数据已经很快返回收到)
   
   问题点:
   ThreadlessExecutor.execute函数,waiting = false,所以sharedExecutor is null 报空指针
   
   原因分析:
   
lazy模式ThreadlessExecutor先创建,后Exchangers.connect导致(因为线程创建在AbstractClient的构造函数initExecutor)
   
   


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