[IGNITE-6362] NPE in Log4J2Logger

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1
• Fix Version/s: 2.4
• Component/s: general
• Assignee: Alexey Popov
• Reporter: Valentin Kulichenko
• Created: 13/Sep/17 00:17
• Updated: 16/Oct/17 12:58
• Resolved: 16/Oct/17 12:57

Description

When I start a node with Log4J2Logger configured and verbose mode (-DIGNITE_QUIET=false, it fails with NPE:

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

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.

Issue Links

• links to: GitHub Pull Request #2804
• links to: GitHub Pull Request #2833