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https://issues.apache.org/jira/browse/MYFACES-1550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12478040
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Guy Coleman commented on MYFACES-1550:
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The duplicate IDs I'm getting turned out to be programmer error with manually
assigned IDs.
1.1.3 displayed the warning "There is more than one JSF tag with an id.."
whereas 1.1.5 throws an exception. Our JSPs need fixing.
> generated MyFaces id's produce duplicates which throw exceptions in
> container, rendering existing apps unusable
> ---------------------------------------------------------------------------------------------------------------
>
> Key: MYFACES-1550
> URL: https://issues.apache.org/jira/browse/MYFACES-1550
> Project: MyFaces Core
> Issue Type: Bug
> Affects Versions: 1.1.5
> Environment: MyFaces 1.1.5, WindowsXP, Tomcat5.5.20
> Reporter: Lisanchez
> Priority: Blocker
> Fix For: 1.1.5
>
>
> Pages that once worked (1.1.5) stopped working for some reason (within the
> past week). The issue seems to be with generated id's on components.
> You will see this where you load a page and then reload the same page through
> a hyperlink or rendering for the second time.
> There seems to be some correlation with the <f:facet tag. I have a page with
> a <t:dataTable and several columns that use the <f:facet> tag to provide the
> column header. The page loads just fine initially but if I reload, I get a
> blank screen and the following message in my Tomcat log file.
> If I remove the column header and the facet tag, I do not see the error.
> About a week ago there were no problems with this page so it is something new
> that has been introduced and should be fixed.
> ---
> Mar 1, 2007 2:29:16 PM com.sun.facelets.FaceletViewHandler
> handleRenderException
> SEVERE: Error Rendering View[/web/Summary.xhtml]
> java.lang.IllegalStateException: Client-id : _id32 is duplicated in the faces
> tr
> ee. Component : _id30:_id31:_id32, path: {Component-Path : [Class:
> javax.faces.c
> omponent.UIViewRoot,ViewId: /web/Summary.xhtml][Class: org.ap
> ache.myfaces.custom.document.Document,Id: _id12][Class:
> javax.faces.component.ht
> ml.HtmlForm,Id: _id30][Class:
> org.apache.myfaces.component.html.ext.HtmlDataTabl
> e,Id: _id31][Class: javax.faces.component.UIColumn,Id: _id32][Class:
> javax.faces
> .component.html.HtmlOutputText,Id: _id32]}
> at
> org.apache.myfaces.application.jsp.JspStateManagerImpl.checkForDuplic
> ateIds(JspStateManagerImpl.java:329)
> at
> org.apache.myfaces.application.jsp.JspStateManagerImpl.checkForDuplic
> ateIds(JspStateManagerImpl.java:341)
> at
> org.apache.myfaces.application.jsp.JspStateManagerImpl.checkForDuplic
> ateIds(JspStateManagerImpl.java:338)
> at
> org.apache.myfaces.application.jsp.JspStateManagerImpl.checkForDuplic
> ateIds(JspStateManagerImpl.java:338)
> at
> org.apache.myfaces.application.jsp.JspStateManagerImpl.checkForDuplic
> ateIds(JspStateManagerImpl.java:341)
> at
> org.apache.myfaces.application.jsp.JspStateManagerImpl.checkForDuplic
> ateIds(JspStateManagerImpl.java:341)
> at
> org.apache.myfaces.application.jsp.JspStateManagerImpl.saveSerialized
> View(JspStateManagerImpl.java:286)
> at
> com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.jav
> a:601)
> at
> com.presence.util.bb.customjsf.PtViewHandler.renderView(PtViewHandler
> .java:107)
> at
> org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderRes
> ponseExecutor.java:41)
> at
> org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:
> 132)
> at javax.faces.webapp.FacesServlet.service(FacesServlet.java:140)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
> icationFilterChain.java:252)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
> ilterChain.java:173)
> at
> org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.do
> FilterInternal(OpenSessionInViewFilter.java:173)
> at
> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerR
> equestFilter.java:77)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
> icationFilterChain.java:202)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
> ilterChain.java:173)
> at
> org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(Extensions
> Filter.java:190)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
> icationFilterChain.java:202)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
> ilterChain.java:173)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
> alve.java:213)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
> alve.java:178)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
> ava:126)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
> ava:105)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
> ve.java:107)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
> a:148)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
> :869)
> at
> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.p
> rocessConnection(Http11BaseProtocol.java:664)
> at
> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpo
> int.java:527)
> at
> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFol
> lowerWorkerThread.java:80)
> at
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
> ool.java:684)
> at java.lang.Thread.run(Thread.java:619)
> ---
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