[
https://issues.apache.org/jira/browse/LOG4J2-2435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16990714#comment-16990714
]
Ralph Goers commented on LOG4J2-2435:
-------------------------------------
LOG4J2-2058 and this one seem to have the same cause.
> Unrecognized conversion specifier [logger] from Junit5 with Java 10 and
> locale C
> --------------------------------------------------------------------------------
>
> Key: LOG4J2-2435
> URL: https://issues.apache.org/jira/browse/LOG4J2-2435
> Project: Log4j 2
> Issue Type: Bug
> Affects Versions: 2.11.0, 2.11.1
> Environment: * Linux (Ubuntu 18.04 with kernel 4.15),
> * OpenJDK 10.0.2,
> * Log4J 2.11.1,
> * Log4J as JUL LogManager,
> * Junit 5.2.0,
> * LC_ALL="C.UTF-8"
> Reporter: Benedykt Jaworski
> Priority: Major
>
> I am not really sure whether it's a problem in Log4j2, or Junit, or Java 10 -
> looks like Log4J2 one to me, but I don't know how to reproduce it outside of
> Junit tests.
> When one runs Junit5 tests with
> * locale set to {{C.UTF-8}},
> * on a Linux system,
> * using OpenJDK 10.0.2,
> * setting a property {{java.util.logging.manager}} to
> {{org.apache.logging.log4j.jul.LogManager}},
> * having {{log4j2}} config with {{%logger}} in a pattern layout,
> one gets a very long litany of logging errors before test results, like those:
> {noformat}
> 2018-09-06 14:41:53,535 main ERROR Unrecognized conversion specifier [logger]
> starting at position 47 in conversion pattern.
> 2018-09-06 14:41:53,538 main ERROR Error creating converter for logger
> java.lang.reflect.InvocationTargetException
> at jdk.internal.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:564)
> at
> org.apache.logging.log4j.core.pattern.PatternParser.createConverter(PatternParser.java:583)
> at
> org.apache.logging.log4j.core.pattern.PatternParser.finalizeConverter(PatternParser.java:639)
> at
> org.apache.logging.log4j.core.pattern.PatternParser.parse(PatternParser.java:415)
> at
> org.apache.logging.log4j.core.pattern.PatternParser.parse(PatternParser.java:177)
> [ ... VERY LONG STACK TRACE ... ]
> at
> java.base/jdk.internal.logger.DefaultLoggerFinder.getLogger(DefaultLoggerFinder.java:157)
> at
> java.base/jdk.internal.logger.LazyLoggers.getLoggerFromFinder(LazyLoggers.java:389)
> at
> java.base/jdk.internal.logger.LazyLoggers.getLazyLogger(LazyLoggers.java:444)
> at
> java.base/sun.util.logging.PlatformLogger.getLogger(PlatformLogger.java:297)
> at
> java.base/sun.util.locale.provider.LocaleServiceProviderPool.config(LocaleServiceProviderPool.java:125)
> Caused by: java.lang.NoClassDefFoundError: Could not initialize class
> org.apache.logging.log4j.core.pattern.LoggerPatternConverter
> ... 1024 more
> {noformat}
> The full log can be seen there:
> [https://gist.github.com/silmeth/240930b6fe1d5fbf1c690566ab80e8b3]
> Here is the repo in which the issue is reproduced:
> [https://github.com/silmeth/logger-test]
> To reproduce it locally, clone it and then run on JDK 10:
> {noformat}
> $ LC_ALL="C.UTF-8" ./gradlew test
> {noformat}
> The same errors are seen if the class {{JupiterTest}} is run within IntelliJ
> Junit test runner with environment variable {{LC_ALL}} set to {{C.UTF-8}} and
> {{-Djava.util.logging.manager="org.apache.logging.log4j.jul.LogManager"}}
> passed to the JVM.
> I cannot reproduce it outside of Junit5. If one runs the {{Main}} class, it
> behaves correctly:
> {noformat}
> $ LC_ALL="C.UTF-8" ./gradlew run
> > Task :run
> 2018-09-06 15:28:32,580 main INFO Registered Log4j as the
> java.util.logging.LogManager.
> 15:28:32.737 [main] INFO test.Main - Locale: en, JVM: 10.0.2
> Deprecated Gradle features were used in this build, making it incompatible
> with Gradle 5.0.
> Use '--warning-mode all' to show the individual deprecation warnings.
> See
> https://docs.gradle.org/4.10/userguide/command_line_interface.html#sec:command_line_warnings
> BUILD SUCCESSFUL in 2s
> 3 actionable tasks: 2 executed, 1 up-to-date
> {noformat}
> and:
> {noformat}
> $ LC_ALL="C.UTF-8" java
> -Djava.util.logging.manager="org.apache.logging.log4j.jul.LogManager" -jar
> ./build/libs/logger-test-all.jar
> 2018-09-06 15:31:00,942 main INFO Registered Log4j as the
> java.util.logging.LogManager.
> 15:31:01.140 [main] INFO test.Main - Locale: en, JVM: 10.0.2
> {noformat}
> Also running the tests on non-C locale (I tried both {{en_US.UTF-8}} and
> {{pl_PL.UTF-8}}) shows correct behaviour inside the Junit5:
> {noformat}
> $ LC_ALL="en_US.UTF-8" ./gradlew test
> > Task :test
> 15:35:16.665 [Test worker] INFO test.JupiterTest - JupiterTest - Locale:
> en_US, JVM: 10.0.2
> 15:35:16.757 [Test worker] INFO test.VintageTest - VintageTest - Locale:
> en_US, JVM: 10.0.2
> Deprecated Gradle features were used in this build, making it incompatible
> with Gradle 5.0.
> Use '--warning-mode all' to show the individual deprecation warnings.
> See
> https://docs.gradle.org/4.10/userguide/command_line_interface.html#sec:command_line_warnings
> BUILD SUCCESSFUL in 9s
> 5 actionable tasks: 5 executed
> {noformat}
> I also couldn't reproduce it on Java 8, so it seems to be Java 10 (or perhaps
> Java 9) related.
> This is a problem for a company I work for, because we run our gradle tests
> in a docker image {{library/openjdk}} which has locale set to {{C.UTF-8}} by
> default.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
