JDK 9 RFR of 8039474: sun.misc.CharacterDecoder.decodeBuffer should use getBytes(iso8859-1)

Brian Burkhalter brian.burkhalter at oracle.com
Thu Apr 10 14:57:04 UTC 2014

On Apr 10, 2014, at 3:27 AM, Ulf Zibis <Ulf.Zibis at CoSoCo.de> wrote:

> Correction ...
> Am 10.04.2014 12:03, schrieb Ulf Zibis:
>> Hi Chris,
>> Am 10.04.2014 11:04, schrieb Chris Hegarty:
>>> Trivially, you could ( but of not have to ) use java.nio.charset.StandardCharsets.ISO_8859_1 to avoid the cost of String to CharSet lookup.
>> In earlier tests Sherman and I have found out, that the cost of initialization of a new charsets object is higher than the lookup of an existing object in the cache.
>> And it's even better to use the same String instance for the lookup which was used to cache the charset.
> It's not about the cached charset, but about the cached charsets de/encoder, compare:
>    StringCoding.decode(String charsetName, byte[] ba, int off, int len)
>    StringCoding.decode(Charset cs, byte[] ba, int off, int len)

So from all this I infer that the change is OK as-is.




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