Mikhail Dobrinin created LOG4J2-768:
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Summary: Custom conversion specifier fails unpredictably
Key: LOG4J2-768
URL: https://issues.apache.org/jira/browse/LOG4J2-768
Project: Log4j 2
Issue Type: Bug
Affects Versions: 2.0.1, 2.0
Reporter: Mikhail Dobrinin
Creating a custom {{LogEventPatternConverter}} with mapping key {{T}} and
attempting to use it will *fail unpredictably* about 50% of the time on my
machine. It appears to be some kind of race condition. The issue still exists
as of 2.0.1. I am attaching a zip file which you can easily import as an
Eclipse project to reproduce.
*Succesful Output*:
{code}
2014-08-06 15:10:08,539 ERROR [1] tests.TestLogger (TestLogger.java:27) -
running configuration: C:\dev\temp\log4j2-testing\log4j2.xml
2014-08-06 15:10:08,540 INFO [1] tests.TestLogger (TestLogger.java:29) - info
level
2014-08-06 15:10:08,541 ERROR [1] tests.TestLogger (TestLogger.java:30) - error
level
{code}
*Failure Output*:
{code}
2014-08-06 15:09:54,179 ERROR Unrecognized format specifier [T]
2014-08-06 15:09:54,179 ERROR Unrecognized conversion specifier [T] starting at
position 11 in conversion pattern.
2014-08-06 15:09:54,195 ERROR [%T] tests.TestLogger (TestLogger.java:27) -
running configuration: C:\dev\temp\log4j2-testing\log4j2.xml
2014-08-06 15:09:54,196 INFO [%T] tests.TestLogger (TestLogger.java:29) - info
level
2014-08-06 15:09:54,196 ERROR [%T] tests.TestLogger (TestLogger.java:30) -
error level
{code}
*Config*:
{code}
<?xml version="1.0" encoding="UTF-8"?>
<configuration packages="patterns">
<appenders>
<Console name="STDOUT" target="SYSTEM_OUT">
<PatternLayout pattern="%d %-5p [%T] %C{2} (%F:%L) - %m%n"/>
</Console>
</appenders>
<loggers>
<root level="info">
<appender-ref ref="STDOUT"/>
</root>
</loggers>
</configuration>
{code}
*Implementation*:
See attachment
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