In the example I am following, there is a line that goes like this in the log4j configuration file: <Console name="ConsoleAppender" target="SYSTEM_OUT" follow="true&quot...

How can you redirect Tomcat 9's internal logging (catalina and localhost) to Log4j2? While there are many guides available for older versions of Tomcat and Log4j, I couldn't find anything "complet...

I'm using log4j 2 for logging and want to turn off the log messages from the library itself, e.g.: 2017-02-20 07:36:38,160 main DEBUG Took 0.001600 seconds to load 0 plugins from package org.apach...

I have a SpringBoot application in a maven multimodule project, and I am using Log4j2 for logging. When I run the build with tests, some of the modules has a weird logging exception, and logs more...

A severe security vulnerability was found for log4j2 <= 2.14.1 (see https://nvd.nist.gov/vuln/detail/CVE-2021-44228). How can I update the pom.xml of a Spring Boot application to make sure that ...

I have recently upgraded my application to use log4j2. I am trying to make use of its async logger feature. However looks like its not creating one. As per Log4j Async config, it says, To make al...

I would like to change some properties from the log4j2.xml file depending on the my application.properties, for example define some properties and then substitute in the log4j2 those properties tha...

Using slf4j-log4j12 version- 2.0.0-alpha5 dependency for logging which pulls Apache Log4j » 1.2.17. Need to upgrade the Log4j to latest which is log4j-core » 2.17.1 such that I don't have to make c...

I am trying to migrate from log4j1.x to log4j2.x. Followed this link - https://logging.apache.org/log4j/2.x/manual/migration.html But I am not seeing logs are generated after changing it. I can't ...

How to set threshold value for ConsoleAppender in new log4j2 using xml file. Usually we do it in log4j 1.x in the below way. Ref link: Log4j - priority value and param name concept explanation H...

I have my log4j2.xml in which I need to add the hostname to the log file for the file Appender. I have the following log4j2.xml- <Configuration status="WARN" monitorInterval="30&...

Following is my log4j2.xml file. I am trying to put my log files in tomcat. But here it is picking ${catalina.base} literally and creating a folder with the same name i.e ${catalina.base} in the cu...

Hopefully a simple question but My google foo is failing me - I've got a maven project where we're using SLF4J with Log4J 1.2 bindings. We now want to move to Log4j 2 particularly for the performa...

In some projects which used slf4j and log4j I can see dependencies like compile('org.apache.logging.log4j:log4j-core:version') compile('org.apache.logging.log4j:log4j-api:version') compile('org.apa...

I have developed a wrapper class on Log4j2. Using declarative services of OSGi I have published a custom logger service using my own logger interface with the wrapper class being the implementation...

I am trying to remove all the vulnerable log4j dependencies from my maven project. I am using log4j 2.16 dependency in my pom and have added exclusions for log4j and sl4j in other dependencies. Sti...

My Log4j2 config file looks like: <Appenders> <RollingRandomAccessFile name="APP_LOG_APPENDER" fileName="${sys:baseLogPath}/${appLogFileName}.log" filePattern="${sys:baseLogPath}/backup...

I configure my Log4j with an XML file. Where should I add the formatMsgNoLookups=true? <?xml version="1.0" encoding="UTF-8"?> <!-- Upload files compare config --> &l...

What file format does log4j2 use when it writes to rollingfileappender? Furthermore, is there a way to change it? What I'd like to do use use UTF-16.

I'm getting this error trying to use log4j2 with spring boot. ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log ...

Recently a 0-day exploit got disclosed, that uses a security vulnerability in log4j which allows unauthorised remote code execution. I'm wondering, what was the actual reason, why log4j has impleme...

edit seems not to be possible at the moment filed an issue. i am using log4j2 in my apache camel application. In camel file names can be configured this way "?fileName=${date:now:yyyyMMdd-HHmms...

With regard to the Log4j JNDI remote code execution vulnerability that has been identified CVE-2021-44228 - (also see references) - I wondered if Log4j-v1.2 is also impacted, but the closest I got ...

We are trying to build a Springboot starter that will create log4j2 configuration programmatically, so developers don't have to bother creating log4j2.xml files. The problem is that the log4j2 prog...

I am using junit 4.10 and log4j2 2.10 version I am getting the following exception, which I am unable to figure out ERROR StatusLogger Error parsing /scratch/log4j.xml javax.xml.parsers.ParserCon...