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From "Valentin Kulichenko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-6362) NPE in Log4J2Logger
Date Wed, 13 Sep 2017 00:18:02 GMT
Valentin Kulichenko created IGNITE-6362:
-------------------------------------------

             Summary: 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
             Fix For: 2.3


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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