pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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>com.baeldung</groupId>
    <artifactId>log4j</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>com.baeldung</groupId>
        <artifactId>parent-modules</artifactId>
        <version>1.0.0-SNAPSHOT</version>
    </parent>

    <dependencies>
        <!--log4j dependencies -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>apache-log4j-extras</artifactId>
            <version>${log4j.version}</version>
        </dependency>

        <dependency>
            <groupId>log4j</groupId>
            <artifactId>apache-log4j-extras</artifactId>
            <version>${log4j.version}</version>
        </dependency>

        <!--log4j2 dependencies -->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>${log4j-api.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>${log4j-core.version}</version>
        </dependency>
        <!--disruptor for log4j2 async logging -->
        <dependency>
            <groupId>com.lmax</groupId>
            <artifactId>disruptor</artifactId>
            <version>${disruptor.version}</version>
        </dependency>
    </dependencies>

    <properties>
        <log4j.version>1.2.17</log4j.version>
        <log4j-api.version>2.7</log4j-api.version>
        <log4j-core.version>2.7</log4j-core.version>
        <disruptor.version>3.3.6</disruptor.version>
    </properties>

</project>