code: private void btLaunchActionPerformed(java.awt.event.ActionEvent evt)//GEN-FIRST:event_btLaunchActionPerformed
      {//GEN-HEADEREND:event_btLaunchActionPerformed
        try
        {
          Desktop.getDesktop().browse(new URI(
            "http://localhost:" + webServerPort + "/annis-gui/"));
        }
        catch (IOException | URISyntaxException ex)
        {
         ImportStatus importStatus = corpusAdministration
            .getAdministrationDao().initImportStatus();
          importStatus.addException("unknown exception", ex);
          new ExceptionDialog(importStatus).setVisible(true);
        }
  
      }
docs: GEN-LAST:event_btListActionPerformed