Bug 180879 [regression]Report Engine log file isn't generated.[0600]
Description: Report Engine log file isn't generated. Build number:2.2.0.v20070404 Steps to reproduce: 1. Preview BIRT report. 2. Check log in logs folder under viewer plugin birt folder. Expected result: Log file is created. Actual result: No log files. Error log:N/A
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/ReportEngine.java
* @throws EngineException
	 */
	public IReportRunnable openReportDesign( ReportDesignHandle designHandle )
			throws EngineException
	{
		logger.log( Level.FINE,
				"ReportEngine.openReportDesign: designHandle={0} ", designHandle );
		return helper.openReportDesign( designHandle );
	}
	/**
	 * opens a report design stream and creates a report design runnable. From
	 * the ReportRunnable object, embedded images and parameter definitions can
	 * be retrieved. Constructing an engine task requires a report design
	 * runnableobject.
	 * 
	 * @param designStream
	 *            the report design input stream
	 * @return a report design runnable object
	 * @throws EngineException
	 *             throwed when the input stream is null, or the stream does not
	 *             yield a valid report design
	 */
	public IReportRunnable openReportDesign( InputStream designStream )
			throws EngineException
	{
		logger.log( Level.FINE,
				"ReportEngine.openReportDesign: designStream={0} ", designStream );
		return helper.openReportDesign( designStream );
	}
	public IReportRunnable openReportDesign( String name,