@Override
public final void readExternal(DataInput in, int dataVersion)
throws IOException, ClassNotFoundException {
super.readExternal(in, dataVersion);
string1 = UtfHelper.readUtfV7(in, dataVersion);
}
@Override
public void writeExternal(DataOutput out) throws IOException {
super.writeExternal(out);
UtfHelper.writeUtf(out, string1);
}