[jbossseam-issues] [JBoss JIRA] Closed: (JBSEAM-3430) s:selectitems noSelectionLabel broken for java.util.Map

s:selectitems noSelectionLabel broken for java.util.Map -------------------------------------------------------- Key: JBSEAM-3430 URL: https://jira.jboss.org/jira/browse/JBSEAM-3430 Project: Seam Issue Type: Bug Components: JSF Controls, JSF Integration Affects Versions: 2.0.2.SP1 Environment: On plain Tomcat 6.0.18, with JDK 1.6.u7 Reporter: Francisco Jose Peredo Noguez Assignee: Pete Muir Fix For: 2.1.0.CR1 This works fine, it uses a using a List<Map> as source in #{controller.sourceList}, and it should put the selected map in #{controller.mapProperty['key']} (BTW it seems it is putting the toString() fo the map in #{controller.mapProperty['key']} instead of the Map): <h:selectOneMenu name="selectName" value="#{controller.mapProperty['key']}" > <s:selectItems value="#{controller.sourceList}" var="item" label="#{item['label']}"/> </h:selectOneMenu> This crashes (the difference? I added a noSelectionLabel): <h:selectOneMenu name="selectName" value="#{controller.mapProperty['key']}" > <s:selectItems noSelectionLabel="Please select item" value="#{controller.sourceList}" var="item" label="#{item['label']}"/> </h:selectOneMenu> Stack trace: java.lang.NullPointerException: Argument Error: Parameter targetClass is null at com.sun.faces.application.ApplicationImpl.createConverter(ApplicationImpl.java:740) at org.jboss.seam.jsf.SeamApplication.createConverter(SeamApplication.java:126) at org.jboss.seam.ui.converter.ConverterChain.<init>(ConverterChain.java:88) at org.jboss.seam.ui.component.UISelectItems.noSelectionLabel(UISelectItems.java:225) at org.jboss.seam.ui.component.UISelectItems.getValue(UISelectItems.java:149) at com.sun.faces.renderkit.RenderKitUtils.getSelectItems(RenderKitUtils.java:323) at com.sun.faces.renderkit.html_basic.MenuRenderer.getOptionNumber(MenuRenderer.java:675) at com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:793) at com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:335) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:836) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:896) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281) at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) I think that the problem is that it can not determine the right type for the #{controller.mapProperty['key']} expression since it an entry in a java.util.Map instead of a property in a bean.