After considering all possible options I found out the Alexander's suggestion most appropreate to fix this bug. As the line 166 of the radioRenderer promises to prodduce the id of the first radio element using the following pattern:
clientid + ":_id" + index (1)

It also allows to use the predefined focus API.

revision: 15979

Need to modify the renderer to place the requestFocus on the first radio button.

Need to analyze if any other standard components have this issue and document them as Known Issues in the release notes for the time being.

Sorry, my fault. Subject of the bug should have been "requestFocus fails for ice:selectOneRadio."

Olek

Now I can see what is going on. I was testing with ice:selectOneMenu rendering a 'select' tag not a set of radio buttons.
When requestFocus() is invoked the browser receives a command to move focus on the root element of the component (the one owning the clientId). The radio buttons are rendered with a table as the root element which cannot gain focus. The renderer for ice:selectOneMenu will have to be modified to either render an anchor as the root element or move focus on one of the radio buttons.

Additional comment.

If I change requestFocus() in
com.icesoft.faces.component.ext.HtmlSelectOneRadio.java

to
public void requestFocus()

Note an extra ":_1" appended to id (probably not a proper bug fix, I just wanted a quick test)

Recompile and replace appropriate class file in icefaces-webui.jar I do not get any errors and focus is set to the first radio button.

Olek

May be this will help you .

Here is the selectOneGroup from firebug as it appears in Firefox.

<table id="memberEditForm:selectOneGroup" class="iceSelOneRb label-font" style="border-style: solid; border-width: 1px; margin: 2px; left: 144px; top: 144px; position: absolute; background-color: white; padding-left: 2px; padding-right: 2px;">
<tbody>
<tr>
<td>
<input id="memberEditForm:selectOneGroup:_1" type="radio" value="905" onclick="setFocus('');iceSubmitPartial(form, this, event);" name="memberEditForm:selectOneGroup"/>
<label class="iceSelOneRb label-font">Admin</label>
</td>
<td>
<input id="memberEditForm:selectOneGroup:_2" type="radio" value="902" onclick="setFocus('');iceSubmitPartial(form, this, event);" name="memberEditForm:selectOneGroup"/>
<label class="iceSelOneRb label-font">Staff</label>
</td>
<td>
<input id="memberEditForm:selectOneGroup:_3" type="radio" value="901" onclick="setFocus('');iceSubmitPartial(form, this, event);" name="memberEditForm:selectOneGroup"/>
<label class="iceSelOneRb label-font">Member</label>
</td>
</tr>
</tbody>
</table>

The error happens in icefaces-d2d.js on line 2058 (again from firebug)

2057:Ice.Focus.setFocus=function(id)

;

if I break on line 2058 value of id = 'memberEditForm:selectOneGroup' and error occurs
However if before continuing if change value of id to 'memberEditForm:selectOneGroup:_1' which is first radio button everything works fine and focus is set to the first radio button.

The fact that one of the radio buttons is not selected is not important. I've tested with the first selected and I have the same results as above.

Olek

Tested with Address demo wich uses ice:selectOneMenu and requestFocus() features.