Log4j2 missing from io.vertx.core.logging

[Kevin]

I'm trying to configure a basic REST service to use Log4j 2's Async Logger and subsequently Filebeat and getting this error when I 'java -jar ...'

java.lang.ClassNotFoundException: io.vertx.core.logging.Log4j2LogDelegateFactory

I peaked inside the fat jar and only see:

io/vertx/core/logging/Log4jLogDelegate.class

io/vertx/core/logging/Log4jLogDelegateFactory.class

io/vertx/core/logging/Logger.class

io/vertx/core/logging/LoggerFactory.class

Isn't there supposed to be a  

Log4j2LogDelegateFactory.class

?

Can't find any references to it being removed

Thanks

[Alexander Lehmann]

The class is present in a vertx 3.3.3 project I build with fatjar (if the fatjar contains all classes from vertx-core it should be present), maybe you are excluding some files from the jar?

[Kevin]

this is my pom.xml:

<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>io.vertx.blog</groupId>

  <artifactId>my-first-app</artifactId>

  <version>1.0-SNAPSHOT</version>

  <dependencies>

    <dependency>

      <groupId>io.vertx</groupId>

      <artifactId>vertx-core</artifactId>

      <version>3.0.0</version>

    </dependency>

    <dependency>

      <groupId>io.vertx</groupId>

      <artifactId>vertx-web</artifactId>

      <version>3.0.0</version>

    </dependency>

    <dependency>

      <groupId>junit</groupId>

      <artifactId>junit</artifactId>

      <version>4.12</version>

      <scope>test</scope>

    </dependency>

    <dependency>

      <groupId>io.vertx</groupId>

      <artifactId>vertx-unit</artifactId>

      <version>3.0.0</version>

      <scope>test</scope>

    </dependency>

    <!-- Logging

    <dependency>

      <groupId>org.apache.logging.log4j</groupId>

      <artifactId>log4j-api</artifactId>

      <version>2.7</version>

    </dependency>

    <dependency>

      <groupId>org.apache.logging.log4j</groupId>

      <artifactId>log4j-core</artifactId>

      <version>2.7</version>

    </dependency>

  -->

    <dependency>

      <groupId>log4j</groupId>

      <artifactId>log4j</artifactId>

      <version>1.2.17</version>

    </dependency>

  </dependencies>

  <build>

    <plugins>

      <plugin>

        <artifactId>maven-compiler-plugin</artifactId>

        <version>3.3</version>

        <configuration>

          <source>1.8</source>

          <target>1.8</target>

        </configuration>

      </plugin>

      <plugin>

        <groupId>org.apache.maven.plugins</groupId>

        <artifactId>maven-shade-plugin</artifactId>

        <version>2.3</version>

        <executions>

          <execution>

            <phase>package</phase>

            <goals>

              <goal>shade</goal>

            </goals>

            <configuration>

              <transformers>

                <transformer

                  implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">

                  <manifestEntries>

                    <Main-Class>io.vertx.core.Starter</Main-Class>

                    <Main-Verticle>io.vertx.blog.first.MyFirstVerticle</Main-Verticle>

                  </manifestEntries>

                </transformer>

              </transformers>

              <artifactSet/>

              <outputFile>${project.build.directory}/${project.artifactId}-${project.version}-fat.jar</outputFile>

            </configuration>

          </execution>

        </executions>

      </plugin>

    </plugins>

  </build>

</project>

I just do 'mvn clean package' and then 'java -jar -Dvertex... -jar target/... -conf'. I'm currently commenting out Log4j2 and using v1... am I excluding something on purpose?

[Kevin]

I found the error: I need to use 3.3.3 - I edited the Maven versions and it worked, the Log4j2 is not in 3.0.0