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Posted to notifications@logging.apache.org by "Carter Kozak (JIRA)" <ji...@apache.org> on 2018/07/12 02:04:00 UTC
[jira] [Closed] (LOG4J2-2373) StringBuilder escapeJson performs
unnecessary Memory Allocations
[ https://issues.apache.org/jira/browse/LOG4J2-2373?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Carter Kozak closed LOG4J2-2373.
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> StringBuilder escapeJson performs unnecessary Memory Allocations
> ----------------------------------------------------------------
>
> Key: LOG4J2-2373
> URL: https://issues.apache.org/jira/browse/LOG4J2-2373
> Project: Log4j 2
> Issue Type: Bug
> Affects Versions: 2.11.0
> Reporter: Kevin Andrew Meurer
> Assignee: Carter Kozak
> Priority: Major
> Fix For: 3.0.0, 2.11.1
>
>
> The StringBuilders.escapeJson function currently uses the string builder's insert method to add elements to an existing builder for the purposes of escaping special characters. Unfortunately, this leads to a loop that regularly expands the builder capacity, causing issues at scale.
> A better approach would do a first run through to compute the total space required for the addition and then fill that space using the current method.
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