@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
if (out.getVersion().onOrAfter(version1)) {
out.writeInt(value2);
}
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
if (in.getVersion().onOrAfter(version1)) {
value2 = in.readInt();
}
}
