I am trying to use the Log4j2 API to write a Converter plugin with version 2.8.2 but am unable to import org.apache.logging.log4j.core to import the following:
org.apache.logging.log4j.core.LogEvent, org.apache.logging.log4j.core.config.plugins.Plugin, org.apache.logging.log4j.core.pattern.*
I have added the maven dependencies as and this works fine with Log4j 2.8.1
<dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.8.2</version>
</dependency>
<dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>2.8.2</version>
</dependency>Update: log4j-core-2.8.2.jar content
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="" xmlns:xsi="" xsi:schemaLocation=" "> <modelVersion>4.0.0</modelVersion> <groupId>com.andrew_flower.test</groupId> <artifactId>logtest1</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>2.8.2</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.8.2</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.9</version> <scope>test</scope> </dependency> </dependencies> <repositories> <repository> <id>central</id> <url> </repository> <repository> <id>apache.snapshots</id> <name>Apache Release Distribution Repository</name> <url> </url> </repository> </repositories>
</project>1 Answer
I believe you experiencing weird configuration problems with maven local repository, because your log4j-core.jar content is from log4j-api.jar
I copied your pom.xml to my environment just for test, it works fine.Try navigate to log4j folder on your pc under .m2 repository (yourUser/.m2/repository/org/apache/logging/log4j)
and delete all folders, then go to you project and execute mvn install to import all libraries one more time, i hope it will help.
