code: public Object getCurrentMetadata() {
          LocalizedUnsupportedOperationException uoe =
                  new LocalizedUnsupportedOperationException("The " + getTagName() + "does not export metadata for its iterated items.");
          uoe.setLocalizedMessage(Bundle.getErrorString("Tags_DataAccessProvider_metadataUnsupported", new Object[]{getTagName()}));
          throw uoe;
      }
docs: Get the metadata for the current item.  This method is not supported by
  this tag.
  
  @throws UnsupportedOperationException this tag does not support this method from the IDataAccessProvider interface
  @see org.apache.beehive.netui.script.common.IDataAccessProvider