if (pkgname == null) return null;
	protected BundleLoader getPackageExporter(String pkgname) {		if (importedPackages != null) {			PackageSource exporter = (PackageSource) importedPackages.getByKey(pkgname);			if (exporter != null)				return exporter.getSupplier().getBundleLoader();		}		if (isDynamicallyImported(pkgname)) {			PackageSource exporter = (PackageSource) bundle.framework.packageAdmin.exportedPackages.getByKey(pkgname);			if (exporter != null) {				exporter.getSupplier().markUsed(bundle.getLoaderProxy());				importedPackages.add(exporter);				return exporter.getSupplier().getBundleLoader();			}		}		return null;	}