@Override
	public final T getDomainObject(FolderItem item, FileSystem userfs, long checkoutId,
			boolean okToUpgrade, boolean okToRecover, Object consumer, TaskMonitor monitor)
			throws IOException, CancelledException, VersionException {
		// getReadOnlyObject or getImmutableObject should be used
		throw new UnsupportedOperationException("link-file does not support getDomainObject");
	}
Create a link file using the specified URL
@param ghidraUrl link URL (must be a Ghidra URL - see {@link GhidraURL}).
@param fs filesystem where link file should be created 
@param folderPath folder path which should contain link file
@param linkFilename link filename
@throws IOException if an IO error occurs
@throws InvalidNameException if invalid folderPath or linkFilename specified
Ghidra/Framework/Project/src/main/java/ghidra/framework/data/LinkHandler.java