docs: private CmsWorkplaceEditorConfiguration filterPreferredEditor(String preferredEditor) {
  
          if (m_preferredEditors.size() == 0) {
              Iterator<CmsWorkplaceEditorConfiguration> i = m_editorConfigurations.iterator();
              while (i.hasNext()) {
                  CmsWorkplaceEditorConfiguration currentConfig = i.next();
                  m_preferredEditors.put(currentConfig.getEditorUri(), currentConfig);
              }
          }
          return m_preferredEditors.get(preferredEditor);
      }