Bug 161501 [Smoke] Chart can not be previewed in Web Viewer & HTML
Chart can not be previewed in Web Viewer & HTML Steps to reproduce: 1. Create a chart. 2. Preveiw in Web Viewer/ HTML. Expected result: Chart can be previewed. Actual result: No chart is shown.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
fault.setFaultCode( new QName(
					"ReportEngineService.getResultSets( )" ) ); 
			fault.setFaultString( e.getLocalizedMessage( ) );
			throw fault;
		}
		finally
		{
			dataTask.close( );
		}
		return resultSetArray;
	}
	/**
	 * Extract data.
	 * 
	 * @param document
	 * @param resultSetName
	 * @param id
	 * @param columns
	 * @param filters
	 * @param locale
	 * @param outputStream
	 * @throws RemoteException
	 */
	public void extractData( IReportDocument document, String resultSetName,
			Collection columns, Locale locale, OutputStream outputStream )
			throws RemoteException
	{
		assert document != null;
		assert resultSetName != null && resultSetName.length( ) > 0;
		assert columns != null && !columns.isEmpty( );