[jdk8u] RFR: 8301119: Support for GB18030-2022 [v3]

[Severin Gehwolf]

On Fri, 23 Jun 2023 13:36:40 GMT, Severin Gehwolf <sgehwolf at openjdk.org> wrote:

> These 4 tests consistently fail for me with a fastdebug build:
> 
> ```
> FAILED: java/nio/charset/Charset/RegisteredCharsets.java
> FAILED: sun/nio/cs/mapping/CoderTest.java
> FAILED: sun/nio/cs/mapping/TestConv.java
> FAILED: sun/nio/cs/TestGB18030.java
> ```

That was my bad. Ran on the wrong JDK build (so have hidden the comment). Sorry. I'll post a review of the patch today.

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PR Comment: https://git.openjdk.org/jdk8u/pull/45#issuecomment-1609041649