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https://issues.apache.org/jira/browse/IGNITE-6362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16200459#comment-16200459
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Alexey Popov commented on IGNITE-6362:
--------------------------------------
[[email protected]] please review
> NPE in Log4J2Logger
> -------------------
>
> Key: IGNITE-6362
> URL: https://issues.apache.org/jira/browse/IGNITE-6362
> Project: Ignite
> Issue Type: Bug
> Components: general
> Affects Versions: 2.1
> Reporter: Valentin Kulichenko
> Assignee: Alexey Popov
> Fix For: 2.4
>
>
> When I start a node with {{Log4J2Logger}} configured and verbose mode
> ({{-DIGNITE_QUIET=false}}, it fails with NPE:
> {noformat}
> Caused by: java.lang.NullPointerException
> at
> org.apache.logging.log4j.core.config.LoggerConfig.<init>(LoggerConfig.java:145)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.createLogger(LoggerConfig.java:523)
> at
> org.apache.ignite.logger.log4j2.Log4J2Logger.createConsoleLogger(Log4J2Logger.java:380)
> at
> org.apache.ignite.logger.log4j2.Log4J2Logger.addConsoleAppenderIfNeeded(Log4J2Logger.java:338)
> at
> org.apache.ignite.logger.log4j2.Log4J2Logger.<init>(Log4J2Logger.java:145)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> at
> org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:142)
> ... 34 more
> {noformat}
> This is caused by the fact that {{Log4J2Logger#createConsoleLogger}} method
> invokes {{LoggerConfig.createLogger}} providing {{null}} as {{Configuration}}
> object, which unconditionally causes NPE. Need to provide some default
> configuration instead.
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