rowSets[i] = new RowSet( (DteResultSet) rset );
if(rset!=null) { rowSets[i] = new RowSet( (DteResultSet) rset ); } else { rowSets[i] = null; }
	protected IRowSet[] executeQueries( ReportItemDesign item )	{		assert item instanceof ExtendedItemDesign;		ExtendedItemDesign extItem = (ExtendedItemDesign) item;		IRowSet[] rowSets = null;		IBaseQueryDefinition[] queries = extItem.getQueries( );		if ( queries != null )		{			context.newScope( );			rowSets = new IRowSet[queries.length];			for ( int i = 0; i < rowSets.length; i++ )			{				IResultSet rset = context.dataEngine.execute( queries[i] );				rowSets[i] = new RowSet( (DteResultSet) rset );			}		}		return rowSets;	}