Bug 301131 CreateGroupOperation, GroupDescription should be renamed or merged into existing classes
There are some remaining issues related to renamin Groups into Virtual Folders. org.eclipse.ui.internal.ide.undo.GroupDescription IMO should be merged with FolderDescription org.eclipse.ui.ide.undo.CreateGroupOperation should be merged with CreateFolderOperation IDEResourceInfoUtils#GROUP_TEXT org.eclipse.ui.wizards.datatransfer#ImportOperation#setCreateGroups Remy, if you see other related issues, please add a comment to the bug.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/wizards/datatransfer/ImportOperation.java
* @param policy determines how the file object is imported
     */
    void importFile(Object fileObject, int policy) {
        IContainer containerResource;
        try {
            containerResource = getDestinationContainerFor(fileObject);
        } catch (CoreException e) {
            IStatus coreStatus = e.getStatus();
            String newMessage = NLS.bind(DataTransferMessages.ImportOperation_coreImportError, fileObject, coreStatus.getMessage());
            IStatus status = new Status(coreStatus.getSeverity(), coreStatus
                    .getPlugin(), coreStatus.getCode(), newMessage, null);
            errorTable.add(status);
            return;
        }
        String fileObjectPath = provider.getFullPath(fileObject);
        monitor.subTask(fileObjectPath);
        IFile targetResource = containerResource.getFile(new Path(provider
                .getLabel(fileObject)));
        monitor.worked(1);
        if (rejectedFiles.contains(targetResource.getFullPath())) {
			return;
		}
        
        IPath targetPath = targetResource.getLocation();
        
        if (targetPath != null
                && (targetPath.toFile().equals(new File(fileObjectPath)))) {
            errorTable.add(new Status(IStatus.ERROR, PlatformUI.PLUGIN_ID, 0,
                    NLS.bind(DataTransferMessages.ImportOperation_targetSameAsSourceError, fileObjectPath), null));
            return;