private static @NotNull VersionTagHolder createVersionTagHolder() {
    VersionTagHolder versionHolder = new VersionTagHolder();
    versionHolder.setOperation(Operation.GET_FOR_REGISTER_INTEREST);
    return versionHolder;
  }
Process an interest request involving a list of keys
geode-core/src/main/java/org/apache/geode/internal/cache/tier/sockets/BaseCommand.java