// TransferableTreeNode.java// A Transferable TreePath to be used with Drag & Drop applications.//import java.io.*;import java.awt.dnd.*;import java.awt.datatransfer.*;import javax.swing.tree.*;public class TransferableTreeNode implements Transferable {  public static DataFlavor TREE_PATH_FLAVOR = new DataFlavor(TreePath.class, 							     "Tree Path");  DataFlavor flavors[] = { TREE_PATH_FLAVOR };  TreePath path;						     public TransferableTreeNode(TreePath tp) {    path = tp;  }  public synchronized DataFlavor[] getTransferDataFlavors() {    return flavors;  }  public boolean isDataFlavorSupported(DataFlavor flavor) {    return (flavor.getRepresentationClass() == TreePath.class);  }  public synchronized Object getTransferData(DataFlavor flavor)     throws UnsupportedFlavorException, IOException {    if (isDataFlavorSupported(flavor)) {      return (Object)path;    } else {      throw new UnsupportedFlavorException(flavor);    }  }}