Raman Gupta created LOG4J2-2196:
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Summary: Pattern layout %notEmpty does not work for exceptions
Key: LOG4J2-2196
URL: https://issues.apache.org/jira/browse/LOG4J2-2196
Project: Log4j 2
Issue Type: Bug
Components: Pattern Converters
Affects Versions: 2.10.0
Reporter: Raman Gupta
Using a pattern layout that contains something like:
{{%notEmpty\{EXCEPTION: %throwable}}}
kind of works. However, when the Exception is not empty, it prints the
Exception to the appender twice: once in the proper position within the
pattern, and then again completely separately, with a newline before the second
output.
Note that the second output completely ignores any formatting specifications,
such as separator or level-based ansi coloring – it seems as if the output of
Exception.toString() had been sent to the appender directly).
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