backport hessian protocol change from 2.7

[chickenlj]

No description provided.

[codecov-commenter]

Codecov Report

Merging #8432 (ff82b45) into 2.6.x (5e68e43) will decrease coverage by 1.03%.
The diff coverage is 50.00%.

@@             Coverage Diff              @@
##              2.6.x    #8432      +/-   ##
============================================
- Coverage     48.11%   47.07%   -1.04%     
+ Complexity     4618     4474     -144     
============================================
  Files           573      577       +4     
  Lines         26229    25626     -603     
  Branches       4709     4545     -164     
============================================
- Hits          12619    12063     -556     
- Misses        11676    11703      +27     
+ Partials       1934     1860      -74     

Impacted Files	Coverage Δ
...alization/WhitelistHessian2FactoryInitializer.java	0.00% <0.00%> (ø)
...col/hessian/serialization/Hessian2FactoryUtil.java	66.66% <66.66%> (ø)
...ba/dubbo/rpc/protocol/hessian/HessianProtocol.java	69.41% <100.00%> (+0.36%)	⬆️
...ialization/AbstractHessian2FactoryInitializer.java	100.00% <100.00%> (ø)
...rialization/DefaultHessian2FactoryInitializer.java	100.00% <100.00%> (ø)
...aba/dubbo/common/compiler/support/JdkCompiler.java	0.00% <0.00%> (-61.82%)	⬇️
...bo/rpc/cluster/support/FailbackClusterInvoker.java	73.68% <0.00%> (-13.16%)	⬇️
...om/alibaba/dubbo/rpc/filter/ActiveLimitFilter.java	77.77% <0.00%> (-5.56%)	⬇️
...ubbo/rpc/protocol/dubbo/ChannelWrappedInvoker.java	37.50% <0.00%> (-4.17%)	⬇️
.../com/alibaba/dubbo/monitor/dubbo/DubboMonitor.java	87.85% <0.00%> (-1.87%)	⬇️
... and 38 more

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