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.samplesview/src/org/eclipse/birt/report/designer/ui/samplesview/sampleslocator/SampleIncludedSourceEntry.java
{
	private static final String SAMPLE_REPORTS_HOST = "org.eclipse.birt.report.designer.samplereports";
	private static Bundle samplesBundle = Platform.getBundle( SAMPLE_REPORTS_HOST );
	private static final String imageFragmentPath = "/screenshots";
	private static final String librariesFragmentPath = "/samplereports/Reporting Feature Examples/Libraries";
	private static final String scriptedDataSourceFragmentPath = "/samplereports.ide/Scripted Data Source";
	private static final String extendingFragmentPath = "/samplereports.ide/Extending BIRT";
	
	private static final String pngFragmentPath = "/samplereports/Reporting Feature Examples/XML Data Source";
	public static URL getImagePath( String name )
	{
		Enumeration enumeration = samplesBundle.findEntries( imageFragmentPath,
				name + ".PNG",
				false );
		if ( enumeration != null && enumeration.hasMoreElements( ) )
		{
			return (URL) enumeration.nextElement( );
		}