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https://issues.apache.org/jira/browse/LOG4J2-2975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17488065#comment-17488065
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Piotr P. Karwasz edited comment on LOG4J2-2975 at 2/7/22, 12:37 PM:
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[~rgoers] : on which JVMs do you expect a `ClassNotFoundException`? I tested
the addition of `makeLoggingEventBuilder` on HotSpot (Java 1.8) and the class
loaded correctly under SLF4J 1.8.
To be extra careful, one might add a class extending `Log4jLogger` that will
override `makeLoggingEventBuilder` and will be used only if SLF4J 2.0 is
detected.
was (Author: JIRAUSER280472):
[~rgoers] : on which JVMs do you expect `ClassNotFoundException`? I tested the
addition of `makeLoggingEventBuilder` on HotSpot and the class loaded correctly
under SLF4J 1.8.
> SLF4J fluent API fails to capture call site location due to missing
> LoggingEventAware implementation
> ----------------------------------------------------------------------------------------------------
>
> Key: LOG4J2-2975
> URL: https://issues.apache.org/jira/browse/LOG4J2-2975
> Project: Log4j 2
> Issue Type: Bug
> Components: SLF4J Bridge
> Affects Versions: 2.13.3
> Reporter: Daniel Gray
> Assignee: Ralph Goers
> Priority: Major
>
> The logger outputs the wrong log line (120 for INFO, 117 for DEBUG, etc.)
> instead of the line in the program that generated the log, when running with
> the slf4j bridge. *This causes potential confusion when a person debugging
> something is reading the logs as the line numbers are wrong!*
> I have prepared 2 simple CLI apps to show the correct behavior (with only
> Log4J) and the incorrect behavior (with the SLF4J bridge). Both are using the
> exact same configuration (log4j2.properties). The repositories of these
> sample projects are:
> Good behavior with a pure log4j:
> [https://github.com/danielthegray/log4j-nobugsample]
> Wrong behavior with the slf4j bridge:
> [https://github.com/danielthegray/slf4j-bugsample]
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