[jboss-user] [JBoss Seam] - Re: Binding Dropdown To Database Table Using Seam..

johnurban do-not-reply at jboss.com
Wed Oct 18 09:18:01 EDT 2006


I was able to get past the null error by putting @Out above my list declaration in the EJB backer bean:


  |         @Out
  | 	@SelectItems(valueStrategy=SelectItems.Strategy.OBJECT, labelMethod="getname")
  |     private List<Room> roomListByOrganization;
  | 
  | 

Now I'm getting "does not contain Objects of type SelectItem":


08:13:36,906 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
java.lang.IllegalArgumentException: Collection referenced by UISelectItems with binding '#{roomListByOrganization}' and Component-Path : {Component-Path : [Class: javax.faces.component.UIViewRoot,ViewId: /uQuickPersonAdd.jsp][Class: javax.faces.component.html.HtmlForm,Id: _id2][Class: javax.faces.component.html.HtmlSelectOneMenu,Id: _id7][Class: javax.faces.component.UISelectItems,Id: _id8]} does not contain Objects of type SelectItem
        at org.apache.myfaces.util.SelectItemsIterator.next(SelectItemsIterator.java:182)
        at org.apache.myfaces.renderkit.RendererUtils.internalGetSelectItemList(RendererUtils.java:487)
        at org.apache.myfaces.renderkit.RendererUtils.getSelectItemList(RendererUtils.java:461)
        at org.apache.myfaces.renderkit.html.HtmlRendererUtils.internalRenderSelect(HtmlRendererUtils.java:272)
        at org.apache.myfaces.renderkit.html.HtmlRendererUtils.renderMenu(HtmlRendererUtils.java:246)
        at org.apache.myfaces.renderkit.html.HtmlMenuRendererBase.encodeEnd(HtmlMenuRendererBase.java:54)
        at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:331)
        at javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:349)
        at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:253)
        at org.apache.jsp.uQuickPersonAdd_jsp._jspx_meth_h_selectOneMenu_0(uQuickPersonAdd_jsp.java:462)
        at org.apache.jsp.uQuickPersonAdd_jsp._jspx_meth_h_form_0(uQuickPersonAdd_jsp.java:302)
        at org.apache.jsp.uQuickPersonAdd_jsp._jspx_meth_f_view_0(uQuickPersonAdd_jsp.java:193)
        at org.apache.jsp.uQuickPersonAdd_jsp._jspService(uQuickPersonAdd_jsp.java:101)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
        at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:415)
        at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
        at org.jboss.seam.jsf.SeamViewHandler.renderView(SeamViewHandler.java:59)
        at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:352)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
        at java.lang.Thread.run(Thread.java:613)
08:13:36,908 ERROR [SeamExceptionFilter] uncaught exception handled by Seam
javax.servlet.ServletException: Collection referenced by UISelectItems with binding '#{roomListByOrganization}' and Component-Path : {Component-Path : [Class: javax.faces.component.UIViewRoot,ViewId: /uQuickPersonAdd.jsp][Class: javax.faces.component.html.HtmlForm,Id: _id2][Class: javax.faces.component.html.HtmlSelectOneMenu,Id: _id7][Class: javax.faces.component.UISelectItems,Id: _id8]} does not contain Objects of type SelectItem
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:121)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
        at java.lang.Thread.run(Thread.java:613)
08:13:36,909 INFO  [SeamExceptionFilter] killing transaction
08:13:36,914 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
javax.faces.FacesException: Collection referenced by UISelectItems with binding '#{roomListByOrganization}' and Component-Path : {Component-Path : [Class: javax.faces.component.UIViewRoot,ViewId: /uQuickPersonAdd.jsp][Class: javax.faces.component.html.HtmlForm,Id: _id2][Class: javax.faces.component.html.HtmlSelectOneMenu,Id: _id7][Class: javax.faces.component.UISelectItems,Id: _id8]} does not contain Objects of type SelectItem
        at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:421)
        at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
        at org.jboss.seam.jsf.SeamViewHandler.renderView(SeamViewHandler.java:59)
        at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:352)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
        at java.lang.Thread.run(Thread.java:613)
Caused by: org.apache.jasper.JasperException: Collection referenced by UISelectItems with binding '#{roomListByOrganization}' and Component-Path : {Component-Path : [Class: javax.faces.component.UIViewRoot,ViewId: /uQuickPersonAdd.jsp][Class: javax.faces.component.html.HtmlForm,Id: _id2][Class: javax.faces.component.html.HtmlSelectOneMenu,Id: _id7][Class: javax.faces.component.UISelectItems,Id: _id8]} does not contain Objects of type SelectItem
        at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
        at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:415)
        ... 25 more


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