docs: public static void unmap(final MappedByteBuffer buffer)
      {
          if (null != buffer)
          {
              try
              {
                  MappingMethods.UNMAP_BUFFER.invoke(null, buffer);
              }
              catch (final Exception ex)
              {
                  LangUtil.rethrowUnchecked(ex);
              }
          }
      }