RFR: 8308046: Move Solaris related charsets from java.base to jdk.charsets module [v2]

[Naoto Sato]

On Wed, 17 May 2023 23:29:40 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>You can import classes in `java.base/sun.nio.cs` with the wild card so that it would work on all platforms (`Big5` either in `java.base` or `jdk.charsets`)

Scratch that, you've already did it. Then you can remove these: 

import sun.nio.cs.DoubleByte;
import sun.nio.cs.HistoricallyNamedCharset;

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PR Comment: https://git.openjdk.org/jdk/pull/13973#issuecomment-1552259703