Spring boot: ERROR StatusLogger Log4j2 could not find a logging implementation - spring-boot

Question

I trying to add log4j2 to spring boot project but it is giving below error.
ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console
I have configured same using this link
https://howtodoinjava.com/spring-boot2/spring-boot-log4j2-config/
package log.demo.LogDemo;
/**
* Hello world!
*
*/
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.context.ApplicationContext;
#SpringBootApplication
public class Application extends SpringBootServletInitializer {
private static final Logger LOGGER = LogManager.getRootLogger();//Application.class);
public static void main(String[] args)
{
ApplicationContext ctx = SpringApplication.run(Application.class, args);
LOGGER.info("Info level log message");
LOGGER.debug("Debug level log message");
LOGGER.error("Error level log message");
}
}
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>log.demo</groupId>
<artifactId>LogDemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>LogDemo</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/resources</directory>
<excludes>
<!-- <exclude>application.properties</exclude> <exclude>TahitiConfig.xml</exclude>
<exclude>job_definitions.xml</exclude> -->
</excludes>
</resource>
</resources>
</build>
</project>
Don't understand what went wrong any help will be great.
Please let me know if required more information
Tried this solution but no help
Log4j2 could not find a logging implementation with Sprint Boot

Answer 1

Add dependency to your pom
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-to-slf4j</artifactId>
<version>2.8.2</version>
</dependency>
This is because for my case the log4j is printing from Elasticsearch. I have implemented logback.xml for logging.
To overcome default log4j error messages, you can override with slf4j.

Answer 2

I have this problem in NetBeans 8.0 when I added the jar log4j-api-2.12.2.jar.
Netbeans print this message in the console.
"StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console..."
I resolved this problem when I added log4j-core-2.12.2.0001L.jar in my project.
I supposed in Spring, just most add the dependency log4j-core in maven.
Link download JAR
https://jar-download.com/?search_box=log4j-core