How to Shade a JAR and Relocate Classes in Maven

The example below shows how to shade org.fredy.myjar and guava JARS and rename the Guava classes that contain com.google.guava to org.fredy.com.google.guava.

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>org.fredy</groupId>
  <artifactId>shaded</artifactId>
  <version>0.0.1</version>
  <properties>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>
  <dependencies>
    <dependency>
      <groupId>org.fredy</groupId>
      <artifactId>myjar</artifactId>
      <version>0.0.1</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-shade-plugin</artifactId>
        <version>3.0.0</version>
        <configuration>
          <relocations>
            <relocation>
              <pattern>com.google.common</pattern>
              <shadedPattern>org.fredy.com.google.common</shadedPattern>
            </relocation>
          </relocations>
        </configuration>
        <executions>
          <execution>
            <phase>package</phase>
            <goals>
              <goal>shade</goal>
            </goals>
            <configuration>
              <filters>
                <filter>
                  <artifact>*:*</artifact>
                  <excludes>
                    <exclude>META-INF/*.SF</exclude>
                    <exclude>META-INF/*.DSA</exclude>
                    <exclude>META-INF/*.RSA</exclude>
                  </excludes>1
                </filter>
              </filters>
              <promoteTransitiveDependencies>true</promoteTransitiveDependencies>
              <transformers>
                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
              </transformers>
            </configuration>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
</project>