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/internal/ide/dialogs/IDEResourceInfoUtils.java
if (resource.isLinked()) {
				return MISSING_PATH_VARIABLE_TEXT;
			}
			return NOT_EXIST_TEXT;
		}
		IFileInfo info = getFileInfo(location);
		if (info == null) {
			return UNKNOWN_LABEL;
		}
		if (info.exists()) {
			DateFormat format = DateFormat.getDateTimeInstance(DateFormat.LONG,
					DateFormat.MEDIUM);
			return format.format(new Date(info.getLastModified()));
		}
		return NOT_EXIST_TEXT;
	}
	/**
	 * Return the fileInfo at pathName or <code>null</code> if the format is
	 * invalid or if the file info cannot be determined.
	 * 
	 * @param pathName
	 * @return IFileInfo or <code>null</code>
	 */
	public static IFileInfo getFileInfo(IPath pathName) {
		IFileStore store = getFileStore(pathName.toFile().toURI());
		if (store == null) {
			return null;
		}
		return store.fetchInfo();
	}