Error injecting: org.codehaus.plexus.archiver.jar.JarArchiver

[evladik]

Upon mvn install getting the following error:

ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.6:single (default-cli) on project traffic-demo: Execution default-cli of goal org.apache.maven.plugins:maven-assembly-plugin:2.6:single failed: An API incompatibility was encountered while executing org.apache.maven.plugins:maven-assembly-plugin:2.6:single: java.lang.ExceptionInInitializerError: null

Fixed by updating maven-assembly-plugin to 3.1.0

                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>3.1.0</version>
                <configuration>

Please add me to contributors and I will prepare the PR.