* Returns the project artifacts as immutable list. Elements are the project POM artifact and the artifact
     * produced by this project build, if applicable. Hence, the returned list may have one or two elements
     * (never less than 1, never more than 2), depending on project packaging.
     * <p>
     * The list's first element is ALWAYS the project POM artifact. Presence of second element in the list depends
     * solely on the project packaging.

            }
            logger.warn(
                    "For more or less details, use 'maven.plugin.validation' property with one of the values (case insensitive): {}",
                    Arrays.toString(ValidationReportLevel.values()));
            logger.warn("");
        }
    }