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https://issues.apache.org/jira/browse/MYFACES-1861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12589007#action_12589007
]
Guy Bashan commented on MYFACES-1861:
-------------------------------------
Sorry, I am not familiar with the JSF spec (I do know the general concepts).
I do understand that every component in the JSF tree must get a unique id (I
assume when the tree is being built all controls are taken in account no matter
if they are rendered or not).
But in the real world JSF is simply not enough for accomplishing simple tasks,
like showing some link being able to show 2 different values (like: clickme1,
clickme2) that are changed dynamically (without needing to refresh the entire
view or use ajax of course).
So now, there are 2 different links, with 2 different ids in the html code
(only one is rendered when the view is shown), which makes it much harder to
dynamically change the innerHTML of the link, since in the JSF code I have 2
links, one shows "clickme1" and one shows "clickme2" and both are having a
different id although on the HTML level it is actually the same control.
> Duplicated ids exception for 2 controls with same id and one of them is not
> rendered
> ------------------------------------------------------------------------------------
>
> Key: MYFACES-1861
> URL: https://issues.apache.org/jira/browse/MYFACES-1861
> Project: MyFaces Core
> Issue Type: Bug
> Affects Versions: 1.2.2
> Reporter: Guy Bashan
>
> If there are 2 controls (or more) with the same id, one control is rendered
> and the other is not, there is duplicate id exception.
> Exception example:
> javax.servlet.jsp.JspException: Duplicated component Id: 'included1' for
> component: '{Component-Path : [Class:
> javax.faces.component.UIViewRoot,ViewId: /cmp_ads.jsp][Class:
> javax.faces.component.html.HtmlForm,Id: formAds][Class:
> org.apache.myfaces.component.html.ext.HtmlDataTable,Id: tableAds][Class:
> javax.faces.component.UIColumn,Id: j_id_jsp_2054236967_13][Class:
> org.apache.myfaces.component.html.ext.HtmlDataTable,Id:
> tableCreatives][Class: javax.faces.component.UIColumn,Id:
> j_id_jsp_2054236967_23][Class: javax.faces.component.html.HtmlPanelGroup,Id:
> j_id_jsp_2054236967_29][Class:
> org.apache.myfaces.component.html.ext.HtmlOutputText,Id: included1]}'.
> at
> javax.faces.webapp.UIComponentClassicTagBase.doStartTag(UIComponentClassicTagBase.java:459)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_t_005foutputText_005f2(cmp_005fads_jsp.java:1304)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_h_005fpanelGroup_005f1(cmp_005fads_jsp.java:1264)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_h_005fcolumn_005f1(cmp_005fads_jsp.java:1043)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_t_005fdataTable_005f1(cmp_005fads_jsp.java:994)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_h_005fcolumn_005f0(cmp_005fads_jsp.java:717)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_t_005fdataTable_005f0(cmp_005fads_jsp.java:648)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_h_005fform_005f0(cmp_005fads_jsp.java:516)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_f_005fview_005f0(cmp_005fads_jsp.java:264)
> at org.apache.jsp.cmp_005fads_jsp._jspService(cmp_005fads_jsp.java:139)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
> at
> org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445)
> at
> org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)
> at
> org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292)
> at
> org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:338)
> at
> org.apache.myfaces.application.jsp.JspViewHandlerImpl.buildView(JspViewHandlerImpl.java:480)
> at
> org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:334)
> at
> org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
> at
> org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:140)
> at javax.faces.webapp.FacesServlet.service(FacesServlet.java:152)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> com.todacell.ui.view.filter.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:149)
> at
> com.todacell.ui.view.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:61)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
> at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
> at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
> at java.lang.Thread.run(Thread.java:619)
> 15/04/2008 01:06:41 org.apache.catalina.core.ApplicationDispatcher invoke
> SEVERE: Servlet.service() for servlet jsp threw exception
> javax.servlet.jsp.JspException: Duplicated component Id: 'included1' for
> component: '{Component-Path : [Class:
> javax.faces.component.UIViewRoot,ViewId: /cmp_ads.jsp][Class:
> javax.faces.component.html.HtmlForm,Id: formAds][Class:
> org.apache.myfaces.component.html.ext.HtmlDataTable,Id: tableAds][Class:
> javax.faces.component.UIColumn,Id: j_id_jsp_2054236967_13][Class:
> org.apache.myfaces.component.html.ext.HtmlDataTable,Id:
> tableCreatives][Class: javax.faces.component.UIColumn,Id:
> j_id_jsp_2054236967_23][Class: javax.faces.component.html.HtmlPanelGroup,Id:
> j_id_jsp_2054236967_29][Class:
> org.apache.myfaces.component.html.ext.HtmlOutputText,Id: included1]}'.
> at
> javax.faces.webapp.UIComponentClassicTagBase.doStartTag(UIComponentClassicTagBase.java:459)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_t_005foutputText_005f2(cmp_005fads_jsp.java:1304)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_h_005fpanelGroup_005f1(cmp_005fads_jsp.java:1264)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_h_005fcolumn_005f1(cmp_005fads_jsp.java:1043)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_t_005fdataTable_005f1(cmp_005fads_jsp.java:994)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_h_005fcolumn_005f0(cmp_005fads_jsp.java:717)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_t_005fdataTable_005f0(cmp_005fads_jsp.java:648)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_h_005fform_005f0(cmp_005fads_jsp.java:516)
> at
> org.apache.jsp.cmp_005fads_jsp._jspx_meth_f_005fview_005f0(cmp_005fads_jsp.java:264)
> at org.apache.jsp.cmp_005fads_jsp._jspService(cmp_005fads_jsp.java:139)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
> at
> org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445)
> at
> org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)
> at
> org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292)
> at
> org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:338)
> at
> org.apache.myfaces.application.jsp.JspViewHandlerImpl.buildView(JspViewHandlerImpl.java:480)
> at
> org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:334)
> at
> org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
> at
> org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:140)
> at javax.faces.webapp.FacesServlet.service(FacesServlet.java:152)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> com.todacell.ui.view.filter.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:149)
> at
> com.todacell.ui.view.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:61)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
> at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
> at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
> at java.lang.Thread.run(Thread.java:619)
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