Daniel Gray created LOG4J2-2975:
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Summary: Lambda expression call with log4j slf4j bridge logs the
wrong line number
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
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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