RFR: 8065: Remove socket read illegal value [v3]

[xpbob]

On Fri, 14 Apr 2023 01:27:27 GMT, xpbob <duke at openjdk.org> wrote:

>> <img width="647" alt="图片" src="https://user-images.githubusercontent.com/7837910/231723450-21839fe4-4454-4e25-bf59-308526ac0c10.png">
>> 
>> 
>> Socket read failure returns -1
>> Negative statistics affect accuracy
>> 
>> After modification
>> <img width="548" alt="图片" src="https://user-images.githubusercontent.com/7837910/231723666-e9dd7983-a8de-4a14-b1e3-3dfad3dc6572.png">
>
> xpbob has updated the pull request incrementally with one additional commit since the last revision:
> 
>   format code

The code has been updated

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PR Comment: https://git.openjdk.org/jmc/pull/478#issuecomment-1521218919