maven-shaded-log4j-transformer

Transformer implementation to concatenate Log4j2Plugins.dat files due build with Maven Shaded plugin.

How to use:

First download and install the plugin into your local repository with 'mvn install'

You need add a new transformer to your transformers and add the plugin dependency to the shade plugin

An example is below

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-shade-plugin</artifactId>
  <version>3.1.0</version>
  <executions>
    <execution>
      <phase>package</phase>
      <goals>
        <goal>shade</goal>
      </goals>
      <configuration>
        <transformers>
          <transformer
            implementation="com.github.edwgiz.mavenShadePlugin.log4j2CacheTransformer.PluginsCacheFileTransformer">
          </transformer>
        </transformers>
      </configuration>
    </execution>
  </executions>
  <dependencies>
    <dependency>
      <groupId>com.github.edwgiz</groupId>
      <artifactId>maven-shade-plugin.log4j2-cachefile-transformer</artifactId>
      <version>2.11.0</version>
    </dependency>
  </dependencies>
</plugin>

A number of the transformer version (it's 2.11.0 now) corresponds to the version of log4j2 (which is a dependency of this plugin)

It might work with newer/older versions of log4j2 but if you want to be sure then fork/download this repository and change the log4j2 dependencies