public static @NotNull @NlsSafe String createSequentFileName(@NotNull File aParentFolder,
                                                               @NotNull String aFilePrefix,
                                                               @NotNull String aExtension) {
    return findSequentNonexistentFile(aParentFolder, aFilePrefix, aExtension).getName();
  }
public static @NotNull @NlsSafe String createSequentFileName(@NotNull File aParentFolder,
                                                               @NotNull String aFilePrefix,
                                                               @NotNull String aExtension)