remove unnecessary null check before instance of

[slievrly]

Signed-off-by: jimin.jm [email protected]

What is the purpose of the change

remove unnecessary null check before instance of

Brief changelog

remove unnecessary null check before instance of

Verifying this change

ci

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[kezhenxu94]

CI failed due to unused imports

[slievrly]

CI failed due to unused imports

Not related to unused import, if it is import problem, various jdk versions will have problems.

[kezhenxu94]

CI failed due to unused imports

Not related to unused import, if it is import problem, various jdk versions will have problems.

I've re-triggered the job, wait for the result

[codecov-io]

Codecov Report

Merging #4321 into master will decrease coverage by 0.06%.
The diff coverage is 25%.

@@             Coverage Diff              @@
##             master    #4321      +/-   ##
============================================
- Coverage     62.93%   62.86%   -0.07%     
+ Complexity      506      504       -2     
============================================
  Files           769      769              
  Lines         32995    32995              
  Branches       5215     5215              
============================================
- Hits          20765    20742      -23     
- Misses         9831     9850      +19     
- Partials       2399     2403       +4

Impacted Files	Coverage Δ	Complexity Δ
...e/dubbo/common/beanutil/JavaBeanSerializeUtil.java	79.31% <0%> (ø)	0 <0> (ø)	⬇️
...dubbo/registry/support/ProviderInvokerWrapper.java	47.82% <0%> (ø)	0 <0> (ø)	⬇️
...he/dubbo/remoting/transport/netty/NettyHelper.java	35.48% <100%> (+3.22%)	2 <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)
...ng/exchange/support/header/HeartbeatTimerTask.java	73.68% <0%> (-5.27%)	0% <0%> (ø)
.../org/apache/dubbo/remoting/ExecutionException.java	15.78% <0%> (-5.27%)	0% <0%> (ø)
.../apache/dubbo/remoting/transport/AbstractPeer.java	63.04% <0%> (-4.35%)	0% <0%> (ø)
...c/main/java/org/apache/dubbo/rpc/RpcException.java	82.75% <0%> (-3.45%)	0% <0%> (ø)
...pache/dubbo/registry/support/AbstractRegistry.java	78.54% <0%> (-2.69%)	0% <0%> (ø)
... and 6 more

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[Moriadry-zz]

LGTM

[Moriadry-zz]

How can i figure out all this kind of code has been modified correctly?

[slievrly]

How can i figure out all this kind of code has been modified correctly?

Search for instance of+ code style plugin

[ralf0131]

LGTM.