Why are inputText values within a dataTable tag lost when validation fails?

Hi, As a test, I have three fields outside of a dataTable tag and three fields inside a dataTable tag.
I enter data into field1, field3 and all of the fields within the dataTable. Field2 is left empty and is required. I press the 'go' button which gets to the validation phase and immediately redraws the web page and says 'value is required' which is what it should do.
What shocks me at this point is that the field values inside the datatable are lost. They are back to their original blank values.
It like even though validation fails(the model is not updated), the datatable is redrawn using the model data which is still blank. The renderer forgets that those fields within the datatable had data typed into them.
Is this a bug? and how do I get around it? I don't want to lose what was typed in.
here is my example:
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<html>
<body>
<f:view>
<h:form>
<h:panelGrid columns="2">
<h:outputText value="field1"/><h:inputText value="#{example.field1}"/>
<h:outputText value="field2 required"/><h:inputText required="true" value="#{example.field2}"/>
<h:outputText value="field3"/><h:inputText value="#{example.field3}"/>
</h:panelGrid>
<h:panelGrid columns="1">
<h:outputText value="dataTable"/>
<h:outputText value="---------"/>
<h:dataTable value="#{example.lines}" var="line">
<h:column>
<h:inputText value="#{line.text}"/>
<f:facet name="header">
<h:outputText value="column1"/>
</f:facet>
</h:column>
</h:dataTable>
<h:commandButton value="go"/>
<h:outputText value="errors"/>
<h:outputText value="---------"/>
<h:messages showDetail="true"/>
</h:panelGrid>
</h:form>
</f:view>
</body>
</html>
package test;
import java.util.ArrayList;
public class Example {
     private String field1;
     private String field2;
     private String field3;
     private ArrayList lines = new ArrayList();
     public Example() {
          lines.add(new Line());
          lines.add(new Line());
          lines.add(new Line());
     public String getField1() {
          return field1;
     public void setField1(String field1) {
          this.field1 = field1;
     public String getField2() {
          return field2;
     public void setField2(String field2) {
          this.field2 = field2;
     public String getField3() {
          return field3;
     public void setField3(String field3) {
          this.field3 = field3;
     public ArrayList getLines() {
          return lines;
     public void setLines(ArrayList lines) {
          this.lines = lines;
package test;
public class Line {
     private String text;
     public String getText() {
          return text;
     public void setText(String text) {
          this.text = text;
<managed-bean>
<managed-bean-name>example</managed-bean-name>
<managed-bean-class>test.Example</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>

I posted about this bug a month ago and then again twice more (as recently as last week) and got zero responses. I piddled away so much time thinking I was crazy to believe this framework could have such a gaping hole in the fuselage that it was crazy. The more unsettling part too was the fact that the logging in the jsf code is so pathetic that you have no clue even with it on full that it's throwing your data away, they have unit tests in their code, including in-container tests, and they didn't have a test that turned this up? Hello? A project that has been going for this long should not have torture traps like this in it. Sorry for my negative post. To end on a positive note, I am looking forward to finding out about oracle's stuff. And Sun wonders why no one uses their stuff.
Does the Oracle JSF implementation require OAS?

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