docs: public void addContentFile(String source, String resourceId) {
  
          if ((source != null) && (resourceId != null)) {
              try {
                  m_helper.getFileBytes(source);
                  m_contentFiles.add(new CmsUUID(resourceId));
              } catch (CmsImportExportException e) {
                  LOG.info("File not found in import: " + source);
              }
          }
      }