docs: public final void setCancelable(final Cancelable cancelable) {
          if (SwingUtilities.isEventDispatchThread()) {
              setCancelableIntern(cancelable);
          } else {
              try {
                  SwingUtilities.invokeLater(new Runnable() {
                      public void run() {
                          setCancelableIntern(cancelable);
                      }
                  });
              } catch (final Exception ex) {
                  ignore();
              }
          }
      }