RFR: 8325340: Add ASCII fast-path to Data-/ObjectInputStream.readUTF [v7]

[Raffaello Giulietti]

On Fri, 16 Feb 2024 15:31:07 GMT, Claes Redestad <redestad at openjdk.org> wrote:

>> Adding a fast-path for ASCII-only modified UTF-8 strings deserialied via Data- and ObjectInputStream
>> 
>> Testing: tier1-3
>
> Claes Redestad has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Update test/micro/org/openjdk/bench/java/io/DataInputStreamTest.java
>    
>    Co-authored-by: Raffaello Giulietti <raffaello.giulietti at oracle.com>
>  - Update test/micro/org/openjdk/bench/java/io/ObjectInputStreamTest.java
>    
>    Co-authored-by: Raffaello Giulietti <raffaello.giulietti at oracle.com>

Marked as reviewed by rgiulietti (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/17734#pullrequestreview-1885434083