Bug 296565 Make group creation an advanced option in the folder
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardNewFolderMainPage.java
} catch (final ExecutionException e) {
					getContainer().getShell().getDisplay().syncExec(
							new Runnable() {
								public void run() {
									if (e.getCause() instanceof CoreException) {
										ErrorDialog
												.openError(
														getContainer()
																.getShell(), 
														IDEWorkbenchMessages.WizardNewFolderCreationPage_errorTitle,
														null, 
														((CoreException) e
																.getCause())
																.getStatus());
									} else {
										IDEWorkbenchPlugin
												.log(
														getClass(),
														"createNewFolder()", e.getCause()); 
										MessageDialog
												.openError(
														getContainer()
																.getShell(),
														IDEWorkbenchMessages.WizardNewFolderCreationPage_internalErrorTitle,
														NLS
																.bind(
																		IDEWorkbenchMessages.WizardNewFolder_internalError,
																		e
																				.getCause()
																				.getMessage()));