Use double-check to get elements from the cache

[BurningCN]

for issue #7584

[codecov-commenter]

Codecov Report

Merging #7583 (abe87de) into master (0ddc988) will decrease coverage by 0.10%.
The diff coverage is 63.63%.

@@             Coverage Diff              @@
##             master    #7583      +/-   ##
============================================
- Coverage     59.17%   59.07%   -0.11%     
- Complexity      501      529      +28     
============================================
  Files          1079     1076       -3     
  Lines         43331    43420      +89     
  Branches       6318     6340      +22     
============================================
+ Hits          25641    25649       +8     
- Misses        14851    14927      +76     
- Partials       2839     2844       +5     

Impacted Files	Coverage Δ	Complexity Δ
.../java/org/apache/dubbo/config/ReferenceConfig.java	65.40% <0.00%> (-4.30%)	0.00 <0.00> (ø)
...e/dubbo/remoting/exchange/codec/ExchangeCodec.java	80.16% <84.21%> (+0.33%)	0.00 <0.00> (ø)
...java/org/apache/dubbo/common/bytecode/Wrapper.java	82.53% <100.00%> (ø)	0.00 <0.00> (ø)
.../report/support/AbstractMetadataReportFactory.java	78.94% <100.00%> (-8.56%)	0.00 <0.00> (ø)
...apache/dubbo/remoting/transport/AbstractCodec.java	79.41% <100.00%> (+4.41%)	0.00 <0.00> (ø)
...he/dubbo/rpc/protocol/rmi/RmiRemoteInvocation.java	0.00% <0.00%> (-80.00%)	0.00% <0.00%> (-2.00%)
...org/apache/dubbo/rpc/protocol/rmi/RmiProtocol.java	0.00% <0.00%> (-61.67%)	0.00% <0.00%> (-10.00%)
...g/context/properties/DefaultDubboConfigBinder.java	42.85% <0.00%> (-57.15%)	0.00% <0.00%> (ø%)
...bo/config/event/listener/LoggingEventListener.java	37.50% <0.00%> (-25.00%)	0.00% <0.00%> (ø%)
...bbo/common/bytecode/CustomizedLoaderClassPath.java	28.00% <0.00%> (-16.00%)	0.00% <0.00%> (ø%)
... and 50 more

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[AlbumenJ]

LGTM.