Fix IOUtils.write bug

[LiZhenNet]

What is the purpose of the change

Fix #3420

Brief changelog

use EOF to make sure stream reaches end

Verifying this change

UT

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[codecov-io]

Codecov Report

Merging #3559 into master will decrease coverage by 0.04%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master    #3559      +/-   ##
============================================
- Coverage     64.16%   64.12%   -0.05%     
  Complexity       71       71              
============================================
  Files           664      664              
  Lines         28629    28627       -2     
  Branches       4771     4770       -1     
============================================
- Hits          18371    18358      -13     
- Misses         8034     8042       +8     
- Partials       2224     2227       +3

Impacted Files	Coverage Δ	Complexity Δ
...in/java/org/apache/dubbo/common/utils/IOUtils.java	88.63% <100%> (-0.5%)	0 <0> (ø)
...ache/dubbo/remoting/p2p/support/AbstractGroup.java	45.45% <0%> (-11.37%)	0% <0%> (ø)
.../remoting/transport/netty4/NettyServerHandler.java	61.9% <0%> (-9.53%)	0% <0%> (ø)
...ng/transport/dispatcher/all/AllChannelHandler.java	51.42% <0%> (-5.72%)	0% <0%> (ø)
.../org/apache/dubbo/remoting/ExecutionException.java	15.78% <0%> (-5.27%)	0% <0%> (ø)
...bo/rpc/cluster/support/FailbackClusterInvoker.java	67.21% <0%> (-3.28%)	0% <0%> (ø)
...exchange/support/header/HeaderExchangeHandler.java	55.81% <0%> (-2.33%)	0% <0%> (ø)
...pache/dubbo/registry/support/AbstractRegistry.java	80.7% <0%> (-0.79%)	0% <0%> (ø)
.../java/org/apache/dubbo/config/ReferenceConfig.java	57.14% <0%> (+0.37%)	0% <0%> (ø)	⬇️
...dubbo/remoting/exchange/support/DefaultFuture.java	72.97% <0%> (+0.67%)	0% <0%> (ø)	⬇️
... and 2 more

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[LiZhenNet]

Duplicate: #3427, closed