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Posted to notifications@logging.apache.org by "Benedykt Jaworski (JIRA)" <ji...@apache.org> on 2018/09/06 13:46:00 UTC
[jira] [Created] (LOG4J2-2435) Unrecognized conversion specifier
[logger] from Junit5 with Java 10 and locale C
Benedykt Jaworski created LOG4J2-2435:
-----------------------------------------
Summary: 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: 2.11.1, 2.11.0
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
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.
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