Bug 168304 Context root issue when set to other BIRT Web Project.[0603]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
if ( servletPath == null )
			servletPath = request.getServletPath( );
		
		HTMLRenderOption option = new HTMLRenderOption( );
		option.setOutputStream( outputStream );
		option.setOutputFormat( format );
		option.setMasterPageContent( masterPage );
		option.setHtmlRtLFlag( rtl );
		option.setActionHandle( new ViewerHTMLActionHandler( locale,
				rtl,
				masterPage ) );
		
		option.setHtmlTitle( BirtResources.getMessage( ResourceConstants.BIRT_VIEWER_TITLE ) );
		if ( embeddable != null )
		{
			option.setEmbeddable( embeddable.booleanValue( ) );
		}
		if ( activeIds != null )
		{
			option.setInstanceIDs( activeIds );
		}
		IRunAndRenderTask runAndRenderTask = null;
		runAndRenderTask = engine.createRunAndRenderTask( runnable );
		runAndRenderTask.setLocale( locale );
		if ( parameters != null )
		{
			runAndRenderTask.setParameterValues( parameters );
		}
		
		if ( displayTexts != null )