RFR: 8316557: Make fields final in 'sun.util' package

[Chen Liang]

On Thu, 14 Sep 2023 08:58:56 GMT, Andrey Turbanov <aturbanov at openjdk.org> wrote:

> A few classes in `sun.util` package have non-final fields which could easily be marked `final`.

src/java.base/share/classes/sun/util/PropertyResourceBundleCharset.java line 71:

> 69:     private final class PropertiesFileDecoder extends CharsetDecoder {
> 70: 
> 71:         private final CharsetDecoder cdUTF_8 = UTF_8.INSTANCE.newDecoder()

Can be static as well.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15736#discussion_r1328836367