[jira] [Created] (LOG4J2-1873) Implement UTF-8 encoding that doesn't use CharsetEncoder

["Roman Leventov (JIRA)" <ji...@apache.org>]

Roman Leventov created LOG4J2-1873:
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             Summary: Implement UTF-8 encoding that doesn't use CharsetEncoder
                 Key: LOG4J2-1873
                 URL: https://issues.apache.org/jira/browse/LOG4J2-1873
             Project: Log4j 2
          Issue Type: Improvement
            Reporter: Roman Leventov


CharsetEncoder accepts only CharBuffers, and for the sake of being entirely garbage-free we don't want to use CharBuffer.wrap(stringBuilder), when encoding an event.

That forces us to make additional data copy from StringBuilder to a thread-local CharBuffer.

This could be avoided by implementing UTF-8 encoding logic in log4j-core itself, and not using CharsetEncoder.

This issue is specifically about UTF-8 because it is used predominantly and it's relatively easy to implement. There are also likely some open-source Apache 2-compatible implementations in Java out there already that we could just copy and adapt.



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