docs: public <T> T submit(final Callable<T> callable) {
          if (taskExecutor instanceof ForkJoinPool) {
              try {
  
                  return ((ForkJoinPool) taskExecutor).submit(callable)
                                                      .get();
              } catch (final ExecutionException e) {
                  throw ExceptionSoftener.throwSoftenedException(e);
  
              } catch (final InterruptedException e) {
                  Thread.currentThread()
                        .interrupt();
                  throw ExceptionSoftener.throwSoftenedException(e);
  
              }
          }
          try {
              return callable.call();
          } catch (final Exception e) {
              throw new RuntimeException(
                                         e);
          }
      }