public static void verifyTagsAndVersions(@NotNull MappedFileStorageHelper helper,
                                           long vfsCreationTag,
                                           int storageFormatVersion) throws IOException {
    if (helper.getVFSCreationTag() != vfsCreationTag) {
      helper.clear();
    }
    if (helper.getVersion() != storageFormatVersion) {
      helper.clear();
    }
    helper.setVFSCreationTag(vfsCreationTag);
    helper.setVersion(storageFormatVersion);
  }
public static void verifyTagsAndVersions(@NotNull MappedFileStorageHelper helper,
                                           long vfsCreationTag,
                                           int storageFormatVersion)