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From "Boris Klug (JIRA)" <myfaces-...@incubator.apache.org>
Subject [jira] Created: (MYFACES-603) duplicate id exception
Date Thu, 22 Sep 2005 10:52:28 GMT
duplicate id exception
----------------------

         Key: MYFACES-603
         URL: http://issues.apache.org/jira/browse/MYFACES-603
     Project: MyFaces
        Type: Bug
  Components: General  
    Versions: 1.1.0    
 Environment: Tomcat 5.5.9, JDK 1.4.2, Windows NT
    Reporter: Boris Klug
    Priority: Critical


When reloading a page, I get the exception below.

I search the mailing list and someone suggested to assign a id by hand
to every component - which is much work and would clumber the jsf pages.

I manualy added an id to the component with the duplicate id and
redeployed the app - now I get the exception from another component. So
what changed from 1.0.9m9 to 1.1.0 related to this problem?

Another strange thing is that I get the following warning:
2005-09-20 15:06:39,481 INFO [/XXX]: WARNING: Component _id12 just got
an automatic id, because there was no id assigned yet. If this component
was created dynamically (i.e. not by a JSP tag) you should assign it an
explicit static id or assign it the id you get from the createUniqueId
from the current UIViewRoot component right after creation!

Everything went away after I rearragned the components like this: 

Original:

<f:view>
   .. jscookmenu
   ... dataTable with command links
   <h:form>
      ... more dataTable with more command links
   </h:form>
</f:view>

Now without problems:

<f:view>
   ... jscookmenu
   <h:form>
      ... dataTable with command links
      ... more dataTable with more command links
   </h:form>
/f:view>

=== Thrown exception ====
2005-09-20 15:06:47,753 ERROR [jsp]: Servlet.service() for servlet jsp threw exception
javax.faces.FacesException: cannot add component with id '_id21' and path : {Component-Path
: [Class:
 javax.faces.component.html.HtmlInputText,Id: _id21]} to its parent component.
 This might be a problem due to duplicate ids.
 at  javax.faces.webapp.UIComponentTag.findComponent(UIComponentTag.java:401)
 at  javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:219)
at org.apache.jsp.templates.generic_jsp._jspx_meth_h_inputText_1(org.apache.jsp.templates.generic_jsp:1642)
at org.apache.jsp.templates.generic_jsp._jspx_meth_h_panelGrid_4(org.apache.jsp.templates.generic_jsp:1598)
at org.apache.jsp.templates.generic_jsp._jspService(org.apache.jsp.templates.generic_jsp:636)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)


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