Bug 143068 Update the way that viewer sets the image cache folder.
Use this code segment below to set image cache folder. HTMLRenderContext ctx = new HTMLRenderContext(); ctx.setImageDirectory("images"); HashMap map = new HashMap(); map.put(EngineConstants.APPCONTEXT_HTML_RENDER_CONTEXT, ctx); task.setAppContext(map); The one related to 132063
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/BirtViewerReportService.java
return getPage( docName, pageNum + "", renderOptions, activeIds );
	}
	public ByteArrayOutputStream getPageByObjectId( String docName,
			String objectId, InputOptions renderOptions, List activeIds )
			throws ReportServiceException
	{
		
		return null;
	}
	
	public void renderReportlet( String docName,
			String objectId, InputOptions renderOptions, List activeIds,
			OutputStream out ) throws ReportServiceException
	{
		IReportDocument doc = ReportEngineService.getInstance( )
			.openReportDocument( getReportDesignName( renderOptions ),
					docName );
		HttpServletRequest request = (HttpServletRequest) renderOptions
				.getOption( InputOptions.OPT_REQUEST );
		Locale locale = (Locale) renderOptions
				.getOption( InputOptions.OPT_LOCALE );
		Boolean isMasterPageContent = (Boolean) renderOptions
				.getOption( InputOptions.OPT_IS_MASTER_PAGE_CONTENT );
		boolean isMasterPage = isMasterPageContent == null
				? false
				: isMasterPageContent.booleanValue( );
		Boolean svgFlag = (Boolean) renderOptions
				.getOption( InputOptions.OPT_IS_MASTER_PAGE_CONTENT );
		boolean isSvg = svgFlag == null ? false : svgFlag.booleanValue( );
		Boolean isRtl = (Boolean) renderOptions