[JBoss Seam] - selectItems / Converter Issue
by djeverson
We are in the process of implementing a converter for a drop-down list in our application.
We are using Seam 1.1.7 RC1, JBoss 4.0.5, facelets, and ajax4jsf.
The page with the drop down is being executed as part of a page flow.
The page is properly displaying the drop down list values (the first name of resources to assign the work task to).
Whenever the user selects a value from the drop down list and clicks on the next button, the following stack trace is generated:
| 2007-02-26 19:55:16,689 ERROR [org.jboss.seam.web.ExceptionFilter] uncaught exception
| javax.servlet.ServletException: Could not restore StateHolder of type us.crimnet.iss.view.converters.Converters$1 (missing no-args constructor?)
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:152)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:63)
| at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:79)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.SeamFilter.doFilter(SeamFilter.java:84)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:67)
| at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:223)
| 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)
| 2007-02-26 19:55:16,689 ERROR [org.jboss.seam.web.ExceptionFilter] exception root cause
| java.lang.RuntimeException: Could not restore StateHolder of type us.crimnet.iss.view.converters.Converters$1 (missing no-args constructor?)
| at javax.faces.component.UIComponentBase.restoreAttachedState(UIComponentBase.java:894)
| at org.jboss.seam.ui.PrioritizableConverter.restoreState(PrioritizableConverter.java:85)
| at javax.faces.component.UIComponentBase.restoreAttachedState(UIComponentBase.java:903)
| at javax.faces.component.UIComponentBase.restoreAttachedState(UIComponentBase.java:880)
| at org.jboss.seam.ui.ConverterChain.restoreState(ConverterChain.java:187)
| at javax.faces.component.UIComponentBase.restoreAttachedState(UIComponentBase.java:903)
| at javax.faces.component.UIOutput.restoreState(UIOutput.java:94)
| at javax.faces.component.UIInput.restoreState(UIInput.java:489)
| at javax.faces.component.html.HtmlSelectOneMenu.restoreState(HtmlSelectOneMenu.java:408)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:728)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at org.apache.myfaces.application.jsp.JspStateManagerImpl.restoreComponentState(JspStateManagerImpl.java:221)
| at org.apache.myfaces.application.jsp.JspStateManagerImpl.restoreView(JspStateManagerImpl.java:287)
| at org.ajax4jsf.framework.ajax.AjaxStateManager.restoreView(AjaxStateManager.java:76)
| at org.jboss.seam.jsf.SeamStateManager.restoreView(SeamStateManager.java:97)
| at org.ajax4jsf.framework.ajax.AjaxStateManager.restoreView(AjaxStateManager.java:76)
| at org.apache.myfaces.application.jsp.JspViewHandlerImpl.restoreView(JspViewHandlerImpl.java:255)
| at com.sun.facelets.FaceletViewHandler.restoreView(FaceletViewHandler.java:353)
| at org.ajax4jsf.framework.ViewHandlerWrapper.restoreView(ViewHandlerWrapper.java:109)
| at org.ajax4jsf.framework.ajax.AjaxViewHandler.restoreView(AjaxViewHandler.java:135)
| at org.jboss.seam.jsf.SeamViewHandler.restoreView(SeamViewHandler.java:127)
| at com.sun.facelets.FaceletViewHandler.restoreView(FaceletViewHandler.java:353)
| at org.ajax4jsf.framework.ViewHandlerWrapper.restoreView(ViewHandlerWrapper.java:109)
| at org.ajax4jsf.framework.ajax.AjaxViewHandler.restoreView(AjaxViewHandler.java:135)
| at org.apache.myfaces.lifecycle.LifecycleImpl.restoreView(LifecycleImpl.java:141)
| at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:66)
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:137)
| Caused by: java.lang.InstantiationException: us.crimnet.iss.view.converters.Converters$1
| at java.lang.Class.newInstance0(Class.java:335)
| at java.lang.Class.newInstance(Class.java:303)
| at javax.faces.component.UIComponentBase.restoreAttachedState(UIComponentBase.java:890)
| at org.jboss.seam.ui.PrioritizableConverter.restoreState(PrioritizableConverter.java:85)
| at javax.faces.component.UIComponentBase.restoreAttachedState(UIComponentBase.java:903)
| at javax.faces.component.UIComponentBase.restoreAttachedState(UIComponentBase.java:880)
| at org.jboss.seam.ui.ConverterChain.restoreState(ConverterChain.java:187)
| at javax.faces.component.UIComponentBase.restoreAttachedState(UIComponentBase.java:903)
| at javax.faces.component.UIOutput.restoreState(UIOutput.java:94)
| at javax.faces.component.UIInput.restoreState(UIInput.java:489)
| at javax.faces.component.html.HtmlSelectOneMenu.restoreState(HtmlSelectOneMenu.java:408)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:728)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:719)
| at org.apache.myfaces.application.jsp.JspStateManagerImpl.restoreComponentState(JspStateManagerImpl.java:221)
| at org.apache.myfaces.application.jsp.JspStateManagerImpl.restoreView(JspStateManagerImpl.java:287)
| at org.ajax4jsf.framework.ajax.AjaxStateManager.restoreView(AjaxStateManager.java:76)
| at org.jboss.seam.jsf.SeamStateManager.restoreView(SeamStateManager.java:97)
| at org.ajax4jsf.framework.ajax.AjaxStateManager.restoreView(AjaxStateManager.java:76)
| at org.apache.myfaces.application.jsp.JspViewHandlerImpl.restoreView(JspViewHandlerImpl.java:255)
| at com.sun.facelets.FaceletViewHandler.restoreView(FaceletViewHandler.java:353)
| at org.ajax4jsf.framework.ViewHandlerWrapper.restoreView(ViewHandlerWrapper.java:109)
| at org.ajax4jsf.framework.ajax.AjaxViewHandler.restoreView(AjaxViewHandler.java:135)
| at org.jboss.seam.jsf.SeamViewHandler.restoreView(SeamViewHandler.java:127)
| at com.sun.facelets.FaceletViewHandler.restoreView(FaceletViewHandler.java:353)
| at org.ajax4jsf.framework.ViewHandlerWrapper.restoreView(ViewHandlerWrapper.java:109)
| at org.ajax4jsf.framework.ajax.AjaxViewHandler.restoreView(AjaxViewHandler.java:135)
| at org.apache.myfaces.lifecycle.LifecycleImpl.restoreView(LifecycleImpl.java:141)
| 2007-02-26 19:55:16,799 INFO [org.jboss.seam.core.Exceptions] reading exception mappings from /WEB-INF/pages.xml
| 2007-02-26 19:55:16,819 ERROR [org.jboss.seam.exceptions.DebugPageHandler] redirecting to debug page
| ...
|
Our converter code looks like:
| package us.crimnet.iss.view.converters;
|
| import javax.faces.component.UIComponent;
| import javax.faces.context.FacesContext;
| import javax.faces.convert.Converter;
| import javax.faces.convert.ConverterException;
|
| import org.jboss.seam.Component;
| import org.jboss.seam.annotations.Name;
| import org.jboss.seam.annotations.Transactional;
|
| import us.crimnet.iss.services.ProfileManagement;
| import us.crimnet.iss.services.impl.ProfileManagementImpl;
| import us.crimnet.iss.om.core.Person;
|
| @Name("converters")
| public class Converters {
|
| @Transactional
| public Converter getPersonConverter() {
| return new Converter() {
|
| @Transactional
| public Object getAsObject(FacesContext arg0, UIComponent arg1, String arg2) throws ConverterException {
| System.out.println("getAsObject [" + arg2 + "]");
| if (arg2 == null) {
| return null;
| }
| try {
| ProfileManagement profileManagement =
| (ProfileManagement)
| Component.getInstance(ProfileManagementImpl.class);
| return profileManagement.getPersonByPK(Long.valueOf(arg2));
| } catch (NumberFormatException e) {
| throw new ConverterException("Cannot find selected Person", e);
| }
| }
|
| @Transactional
| public String getAsString(FacesContext arg0, UIComponent arg1, Object arg2) throws ConverterException {
| System.out.println("getAsString [" + arg2 + "]");
| if (arg2 instanceof Person) {
| Person person = (Person) arg2;
| return person.getId().toString();
| } else {
| return null;
| }
| }
| };
| }
| }
|
snippet of the facelets xhtml:
| <h:column>
| <f:facet name="header">
| <h:outputText value="Owner" />
| </f:facet>
| <h:selectOneMenu value="#{request.owner}"
| converter="#{converters.personConverter}"
| required="false">
| <s:selectItems value="#{wizard.resources}" var="person" label="#{person.firstName}"
| noSelectionLabel="Please Select..." hideNoSelectionLabel="true" />
| </h:selectOneMenu>
| </h:column>
|
We are using the ui example as a pattern. In fact, the ui example is successfully run in our environment.
Any suggestions as to what is causing the issue/stack trace?
Thanks!
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19Â years, 1Â month