自定义标记的value属性的javax.el.PropertyNotFoundException

Question

我已经定义了一个自定义标签，如下所示：

<ui:composition>
  <h:panelGroup>
     <h:panelGrid columns="6" cellpadding="5">
        <p:outputLabel for="#{id_prefix}#{fieldId}"
            value="#{backingBean.getField(fieldId).label}" 
            rendered="#{backingBean.getField(fieldId).visible}"/>

        <p:selectOneRadio id="#{id_prefix}#{fieldId}"
            value="#{backingBean.getField(fieldId).value}"
            rendered="#{backingBean.getField(fieldId).visible}"
            disabled="#{backingBean.getField(fieldId).disabled}"
            partialSubmit="true">
            <f:selectItems value="#{backingBean.getField(fieldId).items}" />
            <p:ajax disabled="#{not validate}" partialSubmit="true"
                update="#{update}"
                process="#{not empty process ? process : '@this'}"
                listener="#{backingBean.validate(fieldId)}" />
        </p:selectOneRadio>
        <tas:helpButton backingBean="#{backingBean}" fieldId="#{fieldId}" />

    </h:panelGrid>
 </h:panelGroup>

我在xhtml视图中使用自定义标记时设置了fieldId和backingBean等属性：

<tas:radio backingBean="#{nppFormProcessor}" 
     fieldId="deckungskonzept" 
     validate="true" update="generalFields" />

支持bean有一个方法getField(String fieldId)，它返回Field类的实例。

使用MyFaces 2.2.3在tomcat 7上运行正常。我想在WebSphere Libery Profile上部署代码，它似乎具有JSF 2.2的内置功能。

当我在WebSphere上运行代码时，我得到以下优点：

    /WEB-INF/lib/platform.jar/META-INF/custom-tags/radio.xhtml at line 36 and column 26 value="#{backingBean.getField(fieldId).value}": Property 'getField' not found on type mypackage.FormProcessor_$_javassist_2 
    at org.apache.myfaces.view.facelets.el.TagValueExpression.getType(TagValueExpression.java:73)
    at org.apache.myfaces.shared_impl.renderkit._SharedRendererUtils.findUIOutputConverter(_SharedRendererUtils.java:77)
    at org.apache.myfaces.shared_impl.renderkit.RendererUtils.findUIOutputConverter(RendererUtils.java:407)
    at org.apache.myfaces.shared_impl.renderkit.RendererUtils.getConvertedUISelectOneValue(RendererUtils.java:747)
    at org.apache.myfaces.shared_impl.renderkit.html.HtmlRadioRendererBase.getConvertedValue(HtmlRadioRendererBase.java:364)
    at org.primefaces.component.selectoneradio.SelectOneRadioRenderer.getConvertedValue(SelectOneRadioRenderer.java:41)
    at javax.faces.component.UIInput.getConvertedValue(UIInput.java:664)
    at javax.faces.component.UIInput.validate(UIInput.java:596)
    at javax.faces.component.UIInput.processValidators(UIInput.java:277)
    at org.apache.myfaces.context.servlet.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:550)
    at org.apache.myfaces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:207)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:773)
    at javax.faces.component.UIComponentBase.visitTree(UIComponentBase.java:1051)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:793)
    at javax.faces.component.UIComponentBase.visitTree(UIComponentBase.java:1051)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:793)
    at javax.faces.component.UIComponentBase.visitTree(UIComponentBase.java:1051)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:793)
    at javax.faces.component.UIComponentBase.visitTree(UIComponentBase.java:1051)
    at javax.faces.component.UIForm.visitTree(UIForm.java:290)
    .....
    ....