Hi, currently I'm trying to get into the topic JSF and MyFaces by reading the book [EMAIL PROTECTED] So I also try to re-implement the example application they have in the book but I get a strange error...
"Everything" works fine: Show the list users and delete users. But every time I want to create a new user or I want to edit one I get an error. Displaying the userPage.xhtml works fine the first time: So during edit I get the form prefilled and creating a new one the form is empty. But if I now click on "save" I get the error: java.lang.IllegalStateException: duplicate Id for a component j_id19:hpanelGrid20 at org.ajax4jsf.application.TreeStrutureNode.apply(TreeStrutureNode.java:50) at org.ajax4jsf.application.TreeStrutureNode.apply(TreeStrutureNode.java:72) at org.ajax4jsf.application.TreeStrutureNode.apply(TreeStrutureNode.java:72) at org.ajax4jsf.application.TreeStrutureNode.apply(TreeStrutureNode.java:72) at org.ajax4jsf.application.TreeStrutureNode.apply(TreeStrutureNode.java:72) at org.ajax4jsf.application.TreeStrutureNode.apply(TreeStrutureNode.java:72) at org.ajax4jsf.application.TreeStrutureNode.apply(TreeStrutureNode.java:72) at org.ajax4jsf.application.AjaxStateManager.getTreeStructureToSave(AjaxStateMa nager.java:161) at org.ajax4jsf.application.AjaxStateManager.buildSerializedView(AjaxStateManag er.java:270) at org.ajax4jsf.application.AjaxStateManager.saveSerializedView(AjaxStateManage r.java:254) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:601) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.ja va:108) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:189 ) at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseEx ecutor.java:41) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:140) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:152) at org.apache.myfaces.webapp.MyFacesServlet.service(MyFacesServlet.java:100) at de.l3s.vifachem.portal.gui.jsf.ViFaChemFacesServlet.service(ViFaChemFacesSer vlet.java:38) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application FilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh ain.java:206) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:147) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:256) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.jav a:362) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:488) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application FilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh ain.java:206) at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter. java:147) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application FilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh ain.java:206) at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterI nternal(OpenSessionInViewFilter.java:198) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestF ilter.java:76) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application FilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh ain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja va:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja va:191) 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:286) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http 11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) Here I always get the error on the first element on the page which has an ID. I already followed several advices to add an ID to EVERY element in the page but still the same... Can anybody tell me what is wrong here? Thanks in advance....
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