[GitHub] diecui1202 commented on issue #2347: [Dubbo-2233] fix reference config cache issue #2233

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diecui1202 commented on issue #2347: [Dubbo-2233] fix reference config cache issue #2233
URL: https://github.com/apache/incubator-dubbo/pull/2347#issuecomment-416870058
 
 
   @YoungHu I try to reproduce the problem with the following client code,
   
   ```java
           ReferenceConfig<DemoService> reference = new ReferenceConfig<>();
           reference.setApplication(new ApplicationConfig("first-dubbo-client"));
           reference.setRegistry(new RegistryConfig("multicast://224.5.6.7:1234"));
           reference.setInterface(DemoService.class);
           System.in.read(); // stop provider before continuing
   
           ReferenceConfigCache cache = ReferenceConfigCache.getCache();
           try {
               DemoService greetingsService = cache.get(reference);
   
               String message = greetingsService.sayHello("dubbo");
               System.out.println(message);
           } catch (Exception e) {
               e.printStackTrace();
           }
   
           System.in.read(); // start provide before continuing
   
           DemoService greetingsService = cache.get(reference);
           // GreetingsService greetingsService = reference.get();
           String message = greetingsService.sayHello("dubbo");
           System.out.println(message);
   ```
   
   With the newest master, it works. That means the second invocation succeed.
   
   Is my client suitable for reproducing the problem ?

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