NPE when tabing out of inputbox

Question

Hi Gurus,
I have an input box whose valueChange event i am calling the below method. I am getting the following error when I tab out of the component
INFO : [2011-04-19 12:16:24,183] PartyAndOpportunityPageBean - in checkNumberExist()
<LifecycleImpl> <_handleException> ADF_FACES-60098:Faces lifecycle receives unhandled exceptions in phase APPLY_REQUEST_VALUES 2
javax.faces.el.EvaluationException: java.lang.NullPointerException
     at org.apache.myfaces.trinidadinternal.taglib.util.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:58)
     at org.apache.myfaces.trinidad.component.UIXComponentBase.broadcastToMethodBinding(UIXComponentBase.java:1256)
     at org.apache.myfaces.trinidad.component.UIXEditableValue.broadcast(UIXEditableValue.java:214)
     at oracle.adf.view.rich.component.fragment.UIXRegion.broadcast(UIXRegion.java:148)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:92)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)
     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:102)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:92)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)
     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:96)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.broadcastEvents(LifecycleImpl.java:879)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:356)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:185)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:205)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:106)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)
     at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:271)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:177)
     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at com.awRostamani.leadWeb.ui.filter.SecurityCheckFilter.doFilter(SecurityCheckFilter.java:79)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:175)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
<af:inputText value="#{bindings.FixPhoneNumber.inputValue}"
                            label="#{bindings.FixPhoneNumber.hints.label}"
                            required="#{bindings.PartyType1.inputValue == 'ORGANIZATION'}"
                            columns="7" maximumLength="7"
                            shortDesc="#{bindings.FixPhoneNumber.hints.tooltip}"
                            id="it17" simple="true"
                            valueChangeListener="#{PartyAndOpportunityPageBean.checkNumberExist}"
                            autoSubmit="true" immediate="true">
                <f:validateLength minimum="7" maximum="7"/>
                <f:validator binding="#{bindings.FixPhoneNumber.validator}"
                             validatorId="javax.faces.Length"/>
                <f:convertNumber integerOnly="true" groupingUsed="false"/>
              </af:inputText>
    public void checkNumberExist(ValueChangeEvent valueChangeEvent) {
      logger.info("in checkNumberExist()");
      FacesContext context = FacesContext.getCurrentInstance();
      FacesMessage facesMessage = null;
      Map parameterMap = new HashMap<String, String>();
      parameterMap.put("phoneType", "mobile");
      parameterMap.put("number", "971-55-1234567");
      Boolean boolUpdateStatus =
          (Boolean)EL.invokeMethod("checkNumberExist", parameterMap);
      if (boolUpdateStatus) {
          //shw msg number exist
          facesMessage = new FacesMessage(FacesMessage.SEVERITY_ERROR, "Number Already exist", "");
          context.addMessage(null, facesMessage);
      else
         //shw msg number does not exit
         facesMessage = new FacesMessage(FacesMessage.SEVERITY_ERROR, "Number Dosent Already exist", "");
         context.addMessage(null, facesMessage);
    }Any input what can be wrong here ?
thnks :)

Answer 1

      Boolean boolUpdateStatus =
          (Boolean)EL.invokeMethod("checkNumberExist", parameterMap);causes the problem (I guess). Where is the method defined? What does the method do?
Timo