[master] fix random assertion failure

[zrlw]

What is the purpose of the change

fix random assertion failure mentioned in #8689

[codecov-commenter]

Codecov Report

Merging #8702 (13ec3c3) into master (7d95364) will increase coverage by 0.04%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #8702      +/-   ##
============================================
+ Coverage     61.03%   61.07%   +0.04%     
- Complexity      448      449       +1     
============================================
  Files          1097     1097              
  Lines         44398    44398              
  Branches       6466     6466              
============================================
+ Hits          27098    27116      +18     
+ Misses        14317    14302      -15     
+ Partials       2983     2980       -3     

Impacted Files	Coverage Δ
...port/identifier/BaseServiceMetadataIdentifier.java	57.14% <0.00%> (-3.58%)	⬇️
...ubbo/registry/support/AbstractRegistryFactory.java	83.09% <0.00%> (-2.82%)	⬇️
...e/dubbo/remoting/transport/netty4/NettyClient.java	69.56% <0.00%> (-1.45%)	⬇️
.../dubbo/remoting/transport/netty4/NettyChannel.java	63.36% <0.00%> (-1.00%)	⬇️
...pache/dubbo/registry/support/AbstractRegistry.java	77.40% <0.00%> (-0.75%)	⬇️
...g/apache/dubbo/registry/consul/ConsulRegistry.java	60.00% <0.00%> (-0.59%)	⬇️
...apache/dubbo/common/extension/ExtensionLoader.java	81.10% <0.00%> (-0.22%)	⬇️
...he/dubbo/registry/multicast/MulticastRegistry.java	68.37% <0.00%> (+0.93%)	⬆️
...ting/zookeeper/curator/CuratorZookeeperClient.java	70.11% <0.00%> (+1.14%)	⬆️
...pache/dubbo/remoting/transport/AbstractServer.java	62.85% <0.00%> (+1.42%)	⬆️
... and 5 more

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