RFR: 8263754: HexFormat 'fromHex' methods should be static

[Naoto Sato]

On Thu, 25 Mar 2021 20:08:14 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> A number of HexFormat methods converting from strings to numbers do not use delimiter, prefix, suffix, and uppercase parameters and would be more convenient if the methods were static.
> 
> These  APIs were added early in JDK 17 and are being updated before GA.
> This PR updates existing uses in the JDK but there may be compiler warnings in non-JDK source files.
> 
>    public boolean isHexDigit(int);
>    public int fromHexDigit(int);
>    public int fromHexDigits(java.lang.CharSequence);
>    public int fromHexDigits(java.lang.CharSequence, int, int);
>    public long fromHexDigitsToLong(java.lang.CharSequence);
>    public long fromHexDigitsToLong(java.lang.CharSequence, int, int);

Looks good (with the suggestions by Claes).

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Marked as reviewed by naoto (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/3205