9:14 a.m.
Hi,
I'm having a strange problem with the following code:
| <h:selectOneMenu id="anredebox"
value="#{personalDataItem.anrede}" >
| <f:selectItem itemValue="#{msgs.interview_anrede_frau}"
itemLabel="#{msgs.interview_anrede_frau}"/>
| <f:selectItem itemValue="#{msgs.interview_anrede_herr}"
itemLabel="#{msgs.interview_anrede_herr}"/>
| </h:selectOneMenu>
|
Backing Bean (extract):
| @Entity
| @Name("personalDataItem")
| @Scope(SESSION)
| /**
| * Class PersoenlicheDatenItem
| */
| public class PersoenlicheDatenItem extends CategoryItem implements
PersoenlicheDatenItemInterface, Serializable {
|
| //
| // Fields
| //
|
| /**
| * Anrede "Frau" oder "Herr"
| */
| @NotNull
| private String anrede;
|
Of course, there is an interface with appropriate getters and setters.
When I'm submitting the form, I receive the following exception:
| java.lang.NullPointerException: value
| at javax.faces.model.SelectItem.<init>(SelectItem.java:71)
| at
javax.faces.component._SelectItemsIterator.hasNext(_SelectItemsIterator.java:72)
| at
javax.faces.component._SelectItemsUtil.matchValue(_SelectItemsUtil.java:46)
| at javax.faces.component.UISelectOne.validateValue(UISelectOne.java:62)
| at javax.faces.component.UIInput.validate(UIInput.java:353)
| at javax.faces.component.UIInput.processValidators(UIInput.java:183)
| at
javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
| at
javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
| at javax.faces.component.UIForm.processValidators(UIForm.java:70)
| at
javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
| at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:146)
| at
org.apache.myfaces.lifecycle.LifecycleImpl.processValidations(LifecycleImpl.java:262)
| at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:76)
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:137)
| 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.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.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.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.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
| 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:595)
|
I wonder what I'm doing wrong, since I've seen such code in other examples where
it seems to work. I'm also using <h:selectOneMenu>s with SelectItems provided by
server-sided Beans and those work properly. Isn't it possible to generate selectItems
like this?
Thanks for any help in advance!
Regards,
Jörg
Seam-Version is 1.2.0PATCH1. JBoss is 4.0.5GA.
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