RFR: 8286366: (cs) Charset.put can use putIfAbsent instead of containsKey+put

[Andrey Turbanov]

On Sun, 8 May 2022 15:11:20 GMT, Alan Bateman <alanb at openjdk.org> wrote:

> It could be changed to use for-each while you are there.

Not sure I get the idea.
Do you mean something like this:

        i.forEachRemaining(new Consumer<Charset>() {
            @Override
            public void accept(Charset cs) {
                m.putIfAbsent(cs.name(), cs);
            }
        });

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PR: https://git.openjdk.java.net/jdk/pull/8480