@Override
	public synchronized Object getTransferData(DataFlavor f) throws UnsupportedFlavorException,
			IOException {

		if (f.equals(localMarkupItemFlavor)) {
			return markupItem;
		}
		throw new UnsupportedFlavorException(f);

	}
Return the transfer data with the given data flavor.
Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/gui/duallisting/VTMarkupItemTransferable.java