Bug 5699 Add ResourceTransfer to packages view
The packages view should add the ResoruceTransfer as a drag source to its list of transfers
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/SelectionTransferDropAdapter.java
fCopyRefactoring= null;
		fCanCopyElements= 0;
	}
	
	public void validateDrop(Object target, DropTargetEvent event, int operation) {
		event.detail= DND.DROP_NONE;
		if (fElements == null) {
			ISelection s= LocalSelectionTransfer.getInstance().getSelection();
			if (!(s instanceof IStructuredSelection))
				return;
			fElements= ((IStructuredSelection)s).toList();
		}	
		boolean success= false;
		try {
			if (operation == DND.DROP_COPY) {
				success= handleValidateCopy(target, event);
			} else if (operation == DND.DROP_MOVE) {
				success= handleValidateMove(target, event);
			}
		} catch (JavaModelException e){
			ExceptionHandler.handle(e, "Drag'n'drop", "Unexpected exception. See log for details.");
			success= false;
		}	
		
		if (success)
			event.detail= operation;
	}	
	public void drop(Object target, DropTargetEvent event) {
		try{
			if (event.detail == DND.DROP_MOVE) {