Bug 182670 ScriptedDataSet does not use the same classloader when ran for Parameters than when ran for the report
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
/**
	 * Open report document from archive,
	 * 
	 * @param docName
	 *            the name of the report document
	 * @param systemId
	 *            the system ID to search the resource in the document,
	 *            generally it is the file name of the report design
	 * @param options
	 *            the config options used in document
	 * @return the report docuement
	 */
	public IReportDocument openReportDocument( String systemId, String docName,
			Map options )
	{
		IReportDocument document = null;
		try
		{
			document = engine.openReportDocument( systemId, docName, options );
		}
		catch ( Exception e )
		{
		}
		return document;
	}
	/**
	 * Render image.
	 * 
	 * @param imageId
	 * @param request