code: @Override
      public Collection<String> getIcons() {
          Collection<String> icons = new ArrayList<String>();
          String iconHeader = getHeader("Subsystem-Icon");
          if (iconHeader != null) {
              String[] iconHeaders = iconHeader.split(",");
              for (String iconDirective : iconHeaders) {
                  String[] iconDirectives = iconDirective.split(";");
                  // Assume the first part is always the file URL
                  icons.add(iconDirectives[0].trim());
              }
          }
          return icons;
      }
docs: /*
  (non-Javadoc)
  
  @see com.ibm.ws.kernel.feature.provisioning.ProvisioningFeatureDefinition#getIconFiles()