Hello,
I'm using Seam 1.1.0.GA, Ajax4JSF, Facelets and selectItems beta 1.1.1beta 4.
This little bit of code on my page is giving me an exception immediately focus
moves away from the selectOneMenu.
| <h:selectOneMenu id="pavilion"
value="#{stand.pavilion}" required="true">
| <si:selectItems
value="#{pavilionList}" var="pav" label="#{pav.title}" noSelectionLabel="-" />
| <a:support event="onblur"
reRender="pavilionErrors"/>
| </h:selectOneMenu>
|
The exception is below
| java.lang.NullPointerException
| at org.jboss.seam.selectitems.Config.find(Config.java:76)
| at
org.jboss.seam.selectitems.Config$$FastClassByCGLIB$$13a6929b.invoke(<generated>)
| at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
| at
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:45)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:55)
| at
org.jboss.seam.interceptors.ManagedEntityIdentityInterceptor.aroundInvoke(ManagedEntityIdentityInterceptor.java:39)
| at sun.reflect.GeneratedMethodAccessor138.invoke(Unknown Source)
| at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
| at
org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
| at
org.jboss.seam.interceptors.OutcomeInterceptor.interceptOutcome(OutcomeInterceptor.java:23)
| at sun.reflect.GeneratedMethodAccessor137.invoke(Unknown Source)
| at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
| at
org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
| at
org.jboss.seam.interceptors.RollbackInterceptor.rollbackIfNecessary(RollbackInterceptor.java:33)
| at sun.reflect.GeneratedMethodAccessor140.invoke(Unknown Source)
| at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
|
and a host of others. I'll give the whole stacktrace if required.
My components.xml has this entry
|
| <core:managed-persistence-context name="em"
persistence-unit-jndi-name="java:/tradeWindsEntityManagerFactory"/>
|
| <selectitems:config name="mySelectItemsConfig"
no-selection-label="Please Select..." entity-manager="#{em}"/>
|
and my persistence unit has the entry allowing seam to manage my persistence
| <property name="jboss.entity.manager.factory.jndi.name"
value="java:/tradeWindsEntityManagerFactory"/>
|
The entity manager is properly injected in my seam components using
@In(create=true). Could it be something to do with A4JSF trying to validate the
field? I get the feeling i'm doing something wrong but i've no idea what it is.
I really need help cos i'm running out of time as this is my project work i
have to submit very soon. Thanks anybody.
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