[GitHub] [dubbo] chickenlj edited a comment on issue #9776: 当我想使用dubbo.application.service-discovery.migration=APPLICATION_FIRST双订阅机制时出现报错

[GitBox <gi...@apache.org>]

chickenlj edited a comment on issue #9776:
URL: https://github.com/apache/dubbo/issues/9776#issuecomment-1070543301


   请先检查与定位为什么出现了 metadata 为空的情况，更确切的说是这段为空？
   
   ```java
       public void init() {
           if (!initiated.compareAndSet(false, true)) {
               return;
           }
   ```


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