Bug 191891 xtab nest in another xtab doesn't display data.[1102]
Description: xtab nest in another xtab doesn't display data. Build number:2.2.0.v200706111025 Steps to reproduce: 1. Insert a xtab. 2. Insert another xtab to first xtab's row area. 3. Preview in web viewer and html (attach report). Expected result: Display data for two xtabs. Actual result: Html display data correctly. Web Viewer can only display data for parent xtab. Error log:N/A
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/olap/data/impl/AggregationResultSetSaveUtil.java
writeIntArray( outputStream, resultSet.getLevelKeyDataType( ) );
			
		writeObjectArray( outputStream, resultSet.getLevelAttributes( ) );
		writeIntArray( outputStream, resultSet.getLevelAttributeDataType( ) );
			
		writeIntArray( outputStream, resultSet.getSortType( ) );
		
		
		AggregationFunctionDefinition[] functions = resultSet.getAggregationDefinition( )
				.getAggregationFunctions( );
		String[] aggregationNames = null;
		if ( functions != null )
		{
			aggregationNames = new String[functions.length];
			for ( int i = 0; i < aggregationNames.length; i++ )
			{
				aggregationNames[i] = functions[i].getName( );
			}
		}
		writeObjectArray( outputStream, aggregationNames );
		writeIntArray( outputStream, resultSet.getAggregationDataType( ) );
	}
	
	/**
	 * 
	 * @param outputStream
	 * @param objects
	 * @throws IOException
	 */
	private static void writeObjectArray( DataOutputStream outputStream, Object[] objects ) throws IOException