Remko Popma reassigned LOG4J2-2253:

    Assignee: Remko Popma

> Reusable messages missing a garbage free parameter accessor
> -----------------------------------------------------------
>                 Key: LOG4J2-2253
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-2253
>             Project: Log4j 2
>          Issue Type: Improvement
>            Reporter: Carter Douglas Kozak
>            Assignee: Remko Popma
>            Priority: Major
> I have a layout which iterates through message parameters, however 
> Message.getParameters causes allocation on many implementations.
> It appears that ReusableMessage.swapParameters is supposed to fill this gap, 
> however some messages types do allocation when this is invoked (see 
> ReusableParameterizedMessage) which isn't helpful for access on a single 
> thread where we don't want to take ownership of values.
> I've put together a proposal for an accessor similar to MapMessage:
> https://github.com/apache/logging-log4j2/pull/150

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