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/extensions/org/eclipse/ui/actions/CopyFilesAndFoldersOperation.java
* UI Thread.
	 * 
	 * @param fileNames
	 *            names of the files to copy
	 * @param destination
	 *            destination to which files will be copied
	 * @see WorkspaceModifyOperation
	 * @see Display#getThread()
	 * @see Thread#currentThread()
	 * @since 3.6
	 */
	public void createGroupAndLinks(final String[] fileNames,
			IContainer destination) {
		IFileStore[] stores = buildFileStores(fileNames);
		if (stores == null) {
			return;
		}
		createGroupsAndLinks = true;
		copyFileStores(destination, stores, true, null);
	}
	/**
	 * Create links of the given files and folders to the destination. The
	 * current Thread is halted while the resources are copied using a
	 * WorkspaceModifyOperation. This method should be called from the UI
	 * Thread.
	 * 
	 * @param fileNames
	 *            names of the files to copy
	 * @param destination
	 *            destination to which files will be copied