code: private List<CmsSelectWidgetOption> createComboConfigurationFileChoice() {
  
          List<CmsSelectWidgetOption> result = new LinkedList<CmsSelectWidgetOption>();
          CmsSystemInfo sysInfo = OpenCms.getSystemInfo();
          // log file, default
          result.add(
              new CmsSelectWidgetOption(
                  sysInfo.getLogFileRfsPath(),
                  true,
                  null,
                  key(Messages.GUI_WORKPLACE_LOGVIEW_FILE_LOG_HELP_0)));
          // opencms.properties
          result.add(new CmsSelectWidgetOption(
              sysInfo.getConfigurationFileRfsPath(),
              false,
              null,
              key(Messages.GUI_WORKPLACE_LOGVIEW_FILE_CONF_HELP_0)));
          // config xml
          String configPath = sysInfo.getConfigFolder();
          if (configPath != null) {
              File configFolder = new File(configPath);
              File[] configFiles = configFolder.listFiles();
              File configFile;
              for (int i = 0; i < configFiles.length; i++) {
                  configFile = configFiles[i];
                  if (configFile.isFile()) {
                      if (configFile.getName().endsWith(".xml")) {
                          result.add(
                              new CmsSelectWidgetOption(
                                  configFile.getAbsolutePath(),
                                  false,
                                  null,
                                  key(Messages.GUI_WORKPLACE_LOGVIEW_FILE_XMLCONF_HELP_0)));
                      }
                  }
              }
          }
          return result;
      }
docs: Returns a list of <code>{@link org.opencms.widgets.CmsSelectWidgetOption}</code> instances for the
  <code>{@link CmsComboWidget}</code> with default file locations of OpenCms.<p>
  
  @return a list of <code>{@link org.opencms.widgets.CmsSelectWidgetOption}</code> instances for the
  <code>{@link CmsComboWidget}</code> with default file locations of OpenCms