Bug 203026 Can not export chart to doc.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
.getCause( ) );
			fault.setFaultCode( new QName(
					"ReportEngineService.renderReport( )" ) ); 			
			throw fault;
		}
		finally
		{
			
			BirtUtility.removeTask( request );
			renderTask.close( );
		}
	}
	/**
	 * Render reportlet page with certain servlet path
	 * 
	 * @param os
	 * @param request
	 * @param reportDocument
	 * @param reportletId
	 * @param masterPage
	 * @param pageNumber
	 * @param svgFlag
	 * @param activeIds
	 * @param locale
	 * @param rtl
	 * @deprecated
	 * @throws RemoteException
	 */
	public void renderReportlet( OutputStream os, HttpServletRequest request,
			IReportDocument reportDocument, String reportletId,