Bug 138828 Export data column are disordered
Steps to reproduce: 1.Add a sample data source and a data set with table "CUSTOMERS" 2.Preview in Web Viewer 3.Click "Export data", choose columns "CUSTOMERNAME","PHONE","CITY","STATE" to be exported, click "OK" Expected result: The exported columns is alphabetic order or the same order as selected columns Actual result: The exported columns is disordered. they are "STATE","CITY","CUSTOMERNAME","PHONE".
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
catch ( Exception e )
		{
		}
		return document;
	}
	/**
	 * Render image.
	 * 
	 * @param imageId
	 * @param outputStream
	 * @throws EngineException
	 */
	public void renderImage( String imageId, OutputStream outputStream )
			throws RemoteException
	{
		assert ( this.imageHandler != null );
		try
		{
			this.imageHandler.getImage( outputStream, this.imageDirectory,
					imageId );
		}
		catch ( EngineException e )
		{
			AxisFault fault = new AxisFault( );
			fault
					.setFaultCode( new QName(
							"ReportEngineService.renderImage( )" ) ); 
			fault.setFaultString( e.getLocalizedMessage( ) );
			throw fault;
		}