code: protected void startThread() {
  
          try {
              m_cms.getRequestContext().setCurrentProject(m_cms.readProject((CmsUUID)m_project.getValue()));
          } catch (CmsException e) {
              LOG.error("Unable to set project", e);
          }
          updateExportParams();
  
          CmsVfsImportExportHandler handler = new CmsVfsImportExportHandler();
          handler.setExportParams(m_exportParams);
          A_CmsReportThread exportThread = new CmsExportThread(m_cms, handler, false);
  
          Window window = CmsBasicDialog.prepareWindow(DialogWidth.max);
          window.setContent(new CmsExportThreadDialog(exportThread, window));
          A_CmsUI.get().addWindow(window);
          exportThread.start();
      }
docs: Starts the export thread and displays it's report.<p>