performance optimze for stdf4j#2

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lantianjialiang wants to merge 8 commits intoliquidkarma:masterfrom

lantianjialiang:master

Commits on Apr 12, 2018

Commits on Apr 17, 2018

adapt the ByteArray to use shared bytearray for data exchange;
Liang.Jia
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Merge branch 'master' of https://github.com/lantianjialiang/stdf4j.git

Liang.Jia
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Liang.Jia
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