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
* @param pageNumber
	 * @param pageRange
	 * @param masterPage
	 * @param svgFlag
	 * @param activeIds
	 * @param locale
	 * @param rtl
	 * @param iServletPath
	 * @throws RemoteException
	 */
	public void renderReport( OutputStream out, HttpServletRequest request,
			IReportDocument reportDocument, String format, long pageNumber,
			String pageRange, boolean masterPage, boolean svgFlag,
			List activeIds, Locale locale, boolean rtl, String iServletPath )
			throws RemoteException
	{
		if ( reportDocument == null )
		{
			AxisFault fault = new AxisFault(
					BirtResources
							.getMessage( ResourceConstants.ACTION_EXCEPTION_NO_REPORT_DOCUMENT ) );
			fault.setFaultCode( new QName(
					"ReportEngineService.renderReport( )" ) ); 
			throw fault;
		}
		if ( out == null )
			return;
		
		String servletPath = iServletPath;
		if ( servletPath == null )