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 location
     * @param resource 
     * @return an URI that was made relative to a variable
     */
    private IPath createRelativePath(IProject project, IPath location, IResource resource) {
		if (relativeVariable == null)
			return location;
		if (relativeVariable.equals(ABSOLUTE_PATH))
			return location;
		IPathVariableManager pathVariableManager = project.getPathVariableManager();
		try {
			return URIUtil.toPath(pathVariableManager.convertToRelative(URIUtil.toURI(location), resource, true, relativeVariable));
		} catch (CoreException e) {
			return location;
		}
	}
	/**
     * Imports the specified file system object recursively into the workspace.
     * If the import fails, adds a status object to the list to be returned by
     * <code>getStatus</code>.
     *
     * @param fileSystemObject the file system object to be imported
     * @param policy determines how the file system object and children are imported
	 * @throws CoreException 
     * @exception OperationCanceledException if canceled
     */
    void importRecursivelyFrom(Object fileSystemObject, int policy) throws CoreException {
        if (monitor.isCanceled()) {
			throw new OperationCanceledException();
		}