// version
nexttok = tokenStack.pop();
Version version = fmt.info.getVersion(nexttok);
if (!version.validate(nexttok))
throw new UnsupportedOperationException("SSTable " + name + " is too old to open. Upgrade to 2.0 first, and run upgradesstables");
// optional temporary marker
Type type = Descriptor.Type.FINAL;
nexttok = tokenStack.peek();