code: protected void init(String classifier, String moduleBase) throws MojoExecutionException {
          this.classifier = classifier;
          this.moduleBase = moduleBase;
          stagingDirectory = new File(buildDirectory, classifier + "-staging");
          configTemplate = new ConfigTemplate(classifier + "-spring.xml");
          exclusionFilter = exclusions == null || exclusions.isEmpty() ? null : new WildcardFileFilter(exclusions);
          archiveConfig.setAddMavenDescriptor(false);
      }
docs: Subclasses must call this method early in their execute method.
  
  @param classifier The output jar classifier.
  @param moduleBase The base path for generated resources.
  @throws MojoExecutionException Unspecified exception.