bugfix: ByteBuffer allocates a fixed length, which may cause BufferOverflowException

[slievrly]

Signed-off-by: slievrly slievrly@163.com

Ⅰ. Describe what this PR did

bugfix: ByteBuffer allocates a fixed length, which may cause BufferOverflowException

Ⅱ. Does this pull request fix one issue?

fix #1336

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[xingfudeshi]

LGTM.

[codecov-io]

Codecov Report

Merging #1344 into develop will decrease coverage by 0.36%.
The diff coverage is 60.91%.

@@              Coverage Diff              @@
##             develop    #1344      +/-   ##
=============================================
- Coverage      45.88%   45.51%   -0.37%     
+ Complexity      1672     1661      -11     
=============================================
  Files            345      345              
  Lines          12670    12665       -5     
  Branches        1598     1598              
=============================================
- Hits            5813     5764      -49     
- Misses          6201     6251      +50     
+ Partials         656      650       -6

Impacted Files	Coverage Δ	Complexity Δ
...l/transaction/AbstractTransactionRequestCodec.java	50% <ø> (ø)	1 <0> (ø)	⬇️
...java/io/seata/codec/seata/MessageCodecFactory.java	64.13% <0%> (-24.14%)	60 <0> (-10)
...ol/transaction/AbstractGlobalEndResponseCodec.java	90.9% <100%> (ø)	3 <0> (ø)	⬇️
...tocol/transaction/BranchRegisterResponseCodec.java	90.9% <100%> (ø)	3 <0> (ø)	⬇️
.../transaction/AbstractTransactionResponseCodec.java	90.9% <100%> (ø)	3 <0> (ø)	⬇️
...src/main/java/io/seata/codec/seata/SeataCodec.java	80% <100%> (-0.65%)	3 <0> (ø)
...a/codec/seata/protocol/RegisterRMRequestCodec.java	52.45% <25%> (ø)	3 <1> (ø)	⬇️
...c/seata/protocol/AbstractIdentifyRequestCodec.java	61.11% <47.61%> (ø)	4 <2> (ø)	⬇️
...col/transaction/AbstractBranchEndRequestCodec.java	57.74% <50%> (ø)	3 <2> (ø)	⬇️
.../seata/protocol/AbstractIdentifyResponseCodec.java	60% <50%> (ø)	3 <2> (ø)	⬇️
... and 14 more

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[sharajava]

getByteBuffer() should be removed later.