code: @Nonnull
    public static ESuccess closeWithoutFlush (@Nullable @WillClose final AutoCloseable aCloseable)
    {
      if (aCloseable != null)
      {
        try
        {
          // close stream
          aCloseable.close ();
          return ESuccess.SUCCESS;
        }
        catch (final Exception ex)
        {
          if (!isKnownEOFException (ex))
            LOGGER.error ("Failed to close object " + aCloseable.getClass ().getName (),
                          ex instanceof IMockException ? null : ex);
        }
      }
      return ESuccess.FAILURE;
    }
docs: Close the passed object, without trying to call flush on it.
  
  @param aCloseable
  The object to be closed. May be <code>null</code>.
  @return {@link ESuccess#SUCCESS} if the object was successfully closed.