Fix bug of calculating param size and amount in ParamFlowRequestDataWriter of Sentinel cluster

[sczyh30]

Describe what this PR does / why we need it

Fix bug of calculating param size and amount in ParamFlowRequestDataWriter of Sentinel cluster.

Does this pull request fix one issue?

Pending

Describe how you did it

Null object or non-primitive objects will not be calculated and transferred to the token server. And add warn log when there are non-primitive objects.

Describe how to verify it

Run the test cases.

Special notes for reviews

NONE.

[CarpenterLee]

LGTM

[codecov-io]

Codecov Report

Merging #495 into master will decrease coverage by 2.55%.
The diff coverage is 66.66%.

@@             Coverage Diff              @@
##             master     #495      +/-   ##
============================================
- Coverage     40.72%   38.17%   -2.56%     
- Complexity     1095     1111      +16     
============================================
  Files           236      259      +23     
  Lines          7570     8155     +585     
  Branches       1050     1109      +59     
============================================
+ Hits           3083     3113      +30     
- Misses         4090     4638     +548     
- Partials        397      404       +7

Impacted Files	Coverage Δ	Complexity Δ
...sentinel/cluster/flow/ClusterParamFlowChecker.java	0% <0%> (ø)	0 <0> (ø)	⬇️
.../client/codec/data/ParamFlowRequestDataWriter.java	37.17% <76.92%> (ø)	14 <10> (?)
...a/csp/sentinel/slots/statistic/base/LeapArray.java	69.62% <0%> (-2.54%)	25% <0%> (-1%)
.../sentinel/cluster/client/NettyTransportClient.java	0% <0%> (ø)	0% <0%> (?)
...mmand/handler/FetchClusterClientConfigHandler.java	0% <0%> (ø)	0% <0%> (?)
...ter/client/codec/data/PingResponseDataDecoder.java	0% <0%> (ø)	0% <0%> (?)
...ient/codec/registry/RequestDataWriterRegistry.java	0% <0%> (ø)	0% <0%> (?)
...luster/client/codec/ClientEntityCodecProvider.java	0% <0%> (ø)	0% <0%> (?)
...uster/client/handler/TokenClientPromiseHolder.java	0% <0%> (ø)	0% <0%> (?)
...nel/cluster/client/handler/TokenClientHandler.java	0% <0%> (ø)	0% <0%> (?)
... and 19 more

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