'log4j2 logger config level does not override root logger level

According to log4j documentation, if I define a logger config for package com.a.b.c with level ERROR with root logger level set to DEBUG, only ERROR logs should come from classes in com.a.b.c while other classes should print DEBUG logs. Therefore I have the below log4j2-test.xml.

However, in my case INFO level logs from classes in com.a.b.c are still being printed. Did I misunderstand anything? What should I do to make classes in com.a.b.c print ERROR logs while all other classes print INFO logs?

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="debug" name="PropertiesConfig" packages="org.apache.logging.log4j.test">
    <Properties>
        <Property name="basePath">target/</Property>
    </Properties>
    <ThresholdFilter level="trace"/>

    <Appenders>
        <Console name="consoleLogger" target="SYSTEM_OUT">
            <PatternLayout pattern="%d{dd-MM-yyyy HH:mm:ss.SSS} %style{[%t]}{magenta} %highlight{%-5level}{TRACE=cyan, DEBUG=green, INFO=yellow, WARN=blue, ERROR=red} [%-60.60c] : %m%n" />
        </Console>

        <File name="fileLogger" fileName="${basePath}app.log">
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} %level [%t] [%c] [%M] [%l] : %msg%n" />
        </File>
    </Appenders>

    <Loggers>
        <Root level="INFO" >
            <AppenderRef ref="consoleLogger" />
            <AppenderRef ref="fileLogger" />
        </Root>
        <Logger name="com.a.b.c" level="ERROR" additivity="false">
            <AppenderRef ref="consoleLogger" />
            <AppenderRef ref="fileLogger" />
        </Logger>
    </Loggers>

</Configuration>
javalogginglog4j2


Solution 1:[1]

I figured this out. The class in question is (weirdly) not using its own class name when getting the logger. Typically it is LoggerFactory.getLogger(com.a.b.c) but in my case the class is doing LoggerFactory.getLogger(java.io.Console), thus our logger config <Logger name="com.a.b.c" level="ERROR" additivity="false"> will not apply to logs coming from this class. I had to add a logger config for the class java.io.Console.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 bklxxjjz

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