w.writeStartElement("subchild1");
w.writeCharacters(Integer.MAX_VALUE + "");
w.writeEndElement();
w.writeStartElement("subchild1");
w.writeCharacters(Integer.MIN_VALUE + "");
w.writeEndElement();
w.writeStartElement("subchild1");
w.writeCharacters(Long.MAX_VALUE + "");
w.writeEndElement();