codeimport opened a new pull request #9612:
URL: https://github.com/apache/dubbo/pull/9612


   ## What is the purpose of the change
   
   fix #9582 
   When the cluster uses the forking mode and the provider side all times out 
,consumer side will npe
   
   
   ## Brief changelog
   org.apache.dubbo.rpc.cluster.support.ForkingClusterInvoker
   org.apache.dubbo.rpc.cluster.support.ForkingClusterInvokerTest
   
   ## Verifying this change
   
   
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   When the cluster uses the forking mode and the provider side all times out, 
the poll method used in forkingClusterInvoker will time out earlier than the 
provider side, so it will get null from the queue and throw NPE in the 
subsequent process. The poll method here should not set the timeout time, but 
wait for the provider to timeout. When the provider times out, the poll method 
will correctly obtain an RpcException
   
   
   


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