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https://issues.apache.org/jira/browse/LOG4J2-2906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17178401#comment-17178401
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ASF subversion and git services commented on LOG4J2-2906:
---------------------------------------------------------
Commit cd30a5cd4f76a7732bb45aa8783d98716865c24d in logging-log4j2's branch
refs/heads/master from Ralph Goers
[ https://gitbox.apache.org/repos/asf?p=logging-log4j2.git;h=cd30a5c ]
LOG4J2-2906 - document changes
> Log4j2 Cloud Config Logging System can't load config
> ----------------------------------------------------
>
> Key: LOG4J2-2906
> URL: https://issues.apache.org/jira/browse/LOG4J2-2906
> Project: Log4j 2
> Issue Type: Bug
> Components: Configuration
> Affects Versions: 2.13.2
> Reporter: Stephen Joyner
> Priority: Major
>
> When the Log4j2CloudConfigLoggingSystem class runs the
> getStandardConfigLocations() method, if the log4j.configurationFile property
> is set, a StackTrace will be thrown. This happens because Arrays.asList() is
> used to convert the String[] to a list, but the list that is returned cannot
> be modified using any methods that would change the size of the array.
> {code:java}
> Exception in thread "Thread-18"
> java.lang.UnsupportedOperationExceptionException in thread "Thread-18"
> java.lang.UnsupportedOperationException at
> java.util.AbstractList.add(AbstractList.java:148) at
> java.util.AbstractList.add(AbstractList.java:108) at
> org.apache.logging.log4j.spring.cloud.config.client.Log4j2CloudConfigLoggingSystem.getStandardConfigLocations(Log4j2CloudConfigLoggingSystem.java:92)
> at
> org.springframework.boot.logging.AbstractLoggingSystem.getSelfInitializationConfig(AbstractLoggingSystem.java:93)
> at
> org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:70)
> at
> org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:60)
> at
> org.springframework.boot.logging.log4j2.Log4J2LoggingSystem.initialize(Log4J2LoggingSystem.java:144)
> at
> org.apache.logging.log4j.spring.cloud.config.client.Log4j2CloudConfigLoggingSystem.initialize(Log4j2CloudConfigLoggingSystem.java:82)
> at
> org.springframework.boot.context.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:289)
> at
> org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:264)
> at
> org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:226)
> at
> org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:203)
> at
> org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
> at
> org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
> at
> org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
> at
> org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
> at
> org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:76)
> at
> org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53)
> at
> org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:342)
> at org.springframework.boot.SpringApplication.run(SpringApplication.java:305)
> {code}
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