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https://issues.apache.org/jira/browse/LOG4J2-768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mikhail Dobrinin updated LOG4J2-768:
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Summary: Custom conversion specifier fails unpredictably when it should
throw an error (was: Custom conversion specifier fails unpredictably)
> Custom conversion specifier fails unpredictably when it should throw an error
> -----------------------------------------------------------------------------
>
> Key: LOG4J2-768
> URL: https://issues.apache.org/jira/browse/LOG4J2-768
> Project: Log4j 2
> Issue Type: Bug
> Affects Versions: 2.0, 2.0.1
> Reporter: Mikhail Dobrinin
> Attachments: LOG4J2-768.zip
>
>
> 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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