Bug 189590 Error occurs when click drill-through link in sample report "OrderMasterAfter.rptdesign"
Description: Open "Report Example" view, open "Drill to Details" directory. Open "OrderMasterAfter.rptdesign" file. Preview in layout, and then click the first column "ORDERNUMBER" value, which defines drill-through link in it. Exception throws out when click on it. Build version:2.2.0.v20070529-0630. Expected result: Even if the "OrderDetailAfter.rptdesign" isn't opened, the drill-through link in the master report should drill to the detailed report.
UI/org.eclipse.birt.report.designer.ui.samples.ide/src/org/eclipse/birt/report/designer/ui/samples/ide/action/IDEOpenSampleReportAction.java
catch ( InterruptedException e )
		{
			ExceptionHandler.handle( e );
			return null;
		}
		catch ( InvocationTargetException e )
		{
			
			Throwable t = e.getTargetException( );
			if ( t instanceof CoreException )
			{
				if ( ( (CoreException) t ).getStatus( ).getCode( ) == IResourceStatus.CASE_VARIANT_EXISTS )
				{
					MessageDialog.openError( composite.getShell( ),
							Messages.getString( "NewReportProjectWizard.errorMessage" ), 
							Messages.getFormattedString( "NewReportProjectWizard.caseVariantExistsError", new String[]{projectHandle.getName( )} ) 
					);
				}
				else
				{
					ErrorDialog.openError( composite.getShell( ),
							Messages.getString( "NewReportProjectWizard.errorMessage" ), 
							null, 
							( (CoreException) t ).getStatus( ) );
				}
			}
			else
			{