Bug 153514 [Regression]Can't Drill-Through to reportdesign which is in the current path
Description: Can't Drill-Through to reportdesign which is in the current path Step to reproduce: 1. new a report named "target.rptdesign" and add label 2. new another report named "Drillthrough.rptdesign" and also add a label in it 3. Choose the lable in second report and edit its Hyperlink: Drill through target.rptdesign 4. preview it by any form Excepted result: Target.rptdesign can be drill-throughed Actual result: Display "The design file /D:/Eclipses/eclipse200608110630/plugins/org.eclipse.birt.report.viewer_2.1.0.v20060811-0630/birt/documents/4F9E34353BCD20DC7687037D6B8B7A25/Acceptance/Target.rptdesign can not be found. " But if Drill-Through with absolute path is ok.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/ReportDocumentReader.java
{
		String version;
		HashMap globalVariables;
		HashMap parameters;
		String systemId;
		int checkpoint;			
		long pageCount;
	}
	
	public void refresh()
	{
		if ( checkpoint == CHECKPOINT_END )
		{
			return;
		}
		try
		{
			doRefresh();
		}
		catch( EngineException ee )
		{
			logger.log( Level.SEVERE, "Failed to refresh", ee ); 
		}
	}
	
	protected void doRefresh( ) throws EngineException
	{
		IReportDocumentLock lock = null;
		try