Bug 296565 Make group creation an advanced option in the folder
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardNewFolderMainPage.java
* </p>
	 * <p>
	 * This method should be called within a workspace modify operation since it
	 * creates resources.
	 * </p>
	 * 
	 * @return the created folder resource, or <code>null</code> if the folder
	 *         was not created
	 */
	public IFolder createNewFolder() {
		if (newFolder != null) {
			return newFolder;
		}
		
		final IPath containerPath = resourceGroup.getContainerFullPath();
		IPath newFolderPath = containerPath.append(resourceGroup.getResource());
		final IFolder newFolderHandle = createFolderHandle(newFolderPath);
		createLinkTarget();
		IRunnableWithProgress op = new IRunnableWithProgress() {
			public void run(IProgressMonitor monitor) {
				CreateFolderOperation op = new CreateFolderOperation(
						newFolderHandle, linkTargetPath, filterList,
						IDEWorkbenchMessages.WizardNewFolderCreationPage_title);
				try {
					
					
					
					
					op.execute(monitor, WorkspaceUndoUtil
						.getUIInfoAdapter(getShell()));