Gm Miller

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SEVERE: javax.faces.FacesException: java.lang.ClassCastException:

I'm using NetBeans 6.9.1, PrimeFaces 2.2RC1, JSF2, whatever Glassfish that comes w/ 6.9.1.

I'm trying to get past this error and cannot figure it out despite multiple internet searches on the topic.

Below are the code samples:
JSF2:

<ui:composition template="/template.xhtml">
<ui:define name="title">
<h:outputText value="ui:define..."></h:outputText>
</ui:define>
<ui:define name="body">
<h:form id="form1" >
<h:panelGroup id="messagePanel" layout="block">
<p:growl id="growl" showDetail="true" />
</h:panelGroup>
<h:panelGroup>
<p:dataTable id="ptDataTable" var="pt" value="#{patientsManagedBean.lazyPatients}"
paginator="true" rows="10" lazy="true" dynamic="true"
paginatorTemplate="{RowsPerPageDropdown} {FirstPageLink} {PreviousPageLink} {CurrentPageReport} {NextPageLink} {LastPageLink}"
rowsPerPageTemplate="50,100,200"
selection="#{patientsManagedBean.selected}" selectionMode="single"
onRowSelectComplete="ptDialog.show()" onRowSelectUpdate="display growl ptDialog"
rowSelectListener="#{patientsManagedBean.onRowSelect}"
rowUnselectListener="#{patientsManagedBean.onRowUnselect}"
onRowUnselectUpdate="growl" >
<f:facet name="header">
Displaying "#{patientsManagedBean.ptFacade.count()}" Patients...
</f:facet>
<p:column headerText="PatientID">
<h:outputText value="#{pt.patientID}"/>
</p:column>
<p:column headerText="PatientFileID">
<h:outputText value="#{pt.patientFileID}"/>
</p:column>
<p:column headerText="Patient Name">
<h:outputText value="#{pt.fullname}"/>
</p:column>
<p:column headerText="DOB">
<h:outputText value="#{pt.dob}" >
<f:convertDateTime dateStyle="medium"/>
</h:outputText>
</p:column>
<p:column headerText="Race">
<h:outputText value="#{pt.raceId}"/>
</p:column>
<p:column headerText="DOD">
<h:outputText value="#{pt.dod}" rendered="#{pt.dod > pt.dob}">
<f:convertDateTime dateStyle="medium"/>
</h:outputText>
</p:column>
</p:dataTable>
</h:panelGroup>
<p:dialog header="Patient Dialog" widgetVar="ptDialog" resizable="false"
showEffect="explode" hideEffect="explode">
<h:panelGrid id="display" columns="2" cellpadding="4">
<f:facet name="header">
</f:facet>
<h:outputText value="Patient Name: "/>
<h:outputText value="#{patientsManagedBean.selected.fullname}"/>
</h:panelGrid>
</p:dialog>
</h:form>
</ui:define>
</ui:composition>
</html>

ManagedBeanCode:

package MBeans;
imports .....
@ManagedBean
@ViewScoped
public class PatientsManagedBean implements Serializable {
@EJB
public PatientsFacade ptFacade;
public Patients selected, item;
public LazyDataModel<Patients> lazyPatients;
public PatientsManagedBean() {
System.out.println("PatientsManagedBean constructed");
}
@PostConstruct
public void constructManagedBean() {
System.out.println("@PostConstructeManagedBean");
lazyPatients = new LazyDataModel<Patients>() {
@Override
public List<Patients> load(int first, int pageSize, String sortField,
boolean sortOrder, Map<String, String> filters) {
System.out.println("public List<Pt> load called");
lazyPatients.setRowCount(ptFacade.count());
System.out.println(lazyPatients.getRowCount() + " patients found");
System.out.println("First: " + first + "; PageSize: " + pageSize);
return ptFacade.findRange(first, pageSize);
}
};
}
public void onRowSelect(SelectEvent event) {
FacesMessage msg = new FacesMessage("Patient Selected",
((Patients) event.getObject()).getFullname());
FacesContext.getCurrentInstance().addMessage(null, msg);
//System.out.println(msg);
}
public void onRowUnselect(UnselectEvent event) {
FacesMessage msg = new FacesMessage("Patient Unselected",
((Patients) event.getObject()).getFullname());
FacesContext.getCurrentInstance().addMessage(null, msg);
//System.out.println(msg);
}
public Patients getItem() {
return item;
}
public void setItem(Patients item) {
this.item = item;
}
public LazyDataModel<Patients> getLazyPatients() {
return lazyPatients;
}
public void setLazyPatients(LazyDataModel<Patients> lazyPatients) {
this.lazyPatients = lazyPatients;
}
public PatientsFacade getPtFacade() {
return ptFacade;
}
public void setPtFacade(PatientsFacade ptFacade) {
this.ptFacade = ptFacade;
}
public Patients getSelected() {
return selected;
}
public void setSelected(Patients selected) {
this.selected = selected;
System.out.println(selected.getPatientFileID() + " setSelected");
}
@FacesConverter(forClass = Patients.class)
public static class PatientsControllerConverter implements Converter {
@Override
public Object getAsObject(FacesContext facesContext, UIComponent component, String value) {
if (value == null || value.length() == 0) {
return null;
}
PatientsManagedBean controller = (PatientsManagedBean) facesContext.getApplication().getELResolver().
getValue(facesContext.getELContext(), null, "patientsManagedBean");
return controller.ptFacade.find(getKey(value));
}
java.lang.String getKey(String value) {
java.lang.String key;
key = value;
return key;
}
String getStringKey(java.lang.String value) {
StringBuilder sb = new StringBuilder();
sb.append(value);
return sb.toString();
}
@Override
public String getAsString(FacesContext facesContext, UIComponent component, Object object) {
if (object == null) {
return null;
}
if (object instanceof Patients) {
Patients o = (Patients) object;
return getStringKey(o.getPatientID());
} else {
throw new IllegalArgumentException("object " + object + " is of type " + object.getClass().getName() + "; expected type: " + PatientsManagedBean.class.getName());
}
}
}
}

Error Message from the GlassFish server:

INFO: PatientsManagedBean constructed
INFO: @PostConstructeManagedBean
INFO: Instantiated an instance of org.hibernate.validator.engine.resolver.JPATraversableResolver.
INFO: EclipseLink, version: Eclipse Persistence Services - 2.0.1.v20100213-r6600
INFO: file:/C:/wamp/www/QIP1a.1/build/web/WEB-INF/classes/_QIP1a.1PU login successful
INFO: public List<Pt> load called
INFO: 8772 patients found
INFO: First: 0; PageSize: 10
SEVERE: javax.faces.FacesException: java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to com.sun.faces.application.view.StateHolderSaver
at javax.faces.component.UIComponent.invokeOnComponent(UIComponent.java:1256)
at javax.faces.component.UIComponentBase.invokeOnComponent(UIComponentBase.java:672)
at com.sun.faces.application.view.StateManagementStrategyImpl.restoreView(StateManagementStrategyImpl.java:284)
at com.sun.faces.application.StateManagerImpl.restoreView(StateManagerImpl.java:177)
at com.sun.faces.application.view.ViewHandlingStrategy.restoreView(ViewHandlingStrategy.java:131)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.restoreView(FaceletViewHandlingStrategy.java:430)
at com.sun.faces.application.view.MultiViewHandler.restoreView(MultiViewHandler.java:143)
at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:199)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:110)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to com.sun.faces.application.view.StateHolderSaver
at com.sun.faces.application.view.StateManagementStrategyImpl$4.invokeContextCallback(StateManagementStrategyImpl.java:288)
at javax.faces.component.UIComponent.invokeOnComponent(UIComponent.java:1253)
... 35 more

The web page shows 10 patients initially. Checking the server log, the 8772 patients are documented in the System.out.println (this is correct). This also is the first page w/ first = 0 and pagesize = 10. Error comes when I either click an entry or I click the next button on the paginator.

If I 'redeploy' the app w/o any changes, the server log shows the following error messages w/o my interacting w/ the app at all:

INFO: file:/C:/wamp/www/QIP1a.1/build/web/WEB-INF/classes/_QIP1a.1PU logout successful
INFO: Portable JNDI names for EJB PatientsFacade : [java:global/QIP1a.1/PatientsFacade!Facades.PatientsFacade, java:global/QIP1a.1/PatientsFacade]
INFO: Portable JNDI names for EJB ICDFacade : [java:global/QIP1a.1/ICDFacade, java:global/QIP1a.1/ICDFacade!Facades.ICDFacade]
INFO: Portable JNDI names for EJB CPTFacade : [java:global/QIP1a.1/CPTFacade!Facades.CPTFacade, java:global/QIP1a.1/CPTFacade]
INFO: Portable JNDI names for EJB SurgeryFacade : [java:global/QIP1a.1/SurgeryFacade, java:global/QIP1a.1/SurgeryFacade!Facades.SurgeryFacade]
INFO: Initializing Mojarra 2.0.2 (FCS b10) for context '/QIP1a.1'
WARNING: WEB0517: Unable to restore sessions for web module [/QIP1a.1] from previous deployment
java.lang.NullPointerException
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate$SerializableLocalObjectDelegate.createObject(EJBLocalObjectInvocationHandlerDelegate.java:154)
at com.sun.ejb.containers.JavaEEObjectStreamHandlerForEJBs.resolveObject(JavaEEObjectStreamHandlerForEJBs.java:76)
at com.sun.enterprise.container.common.spi.util.JavaEEObjectInputStream.resolveObject(JavaEEObjectInputStream.java:72)
at java.io.ObjectInputStream.checkResolve(ObjectInputStream.java:1377)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at java.util.HashMap.readObject(HashMap.java:1030)
at sun.reflect.GeneratedMethodAccessor252.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at java.util.HashMap.readObject(HashMap.java:1030)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at java.util.HashMap.readObject(HashMap.java:1030)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at java.util.HashMap.readObject(HashMap.java:1030)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at org.apache.catalina.session.StandardSession.readRemainingObject(StandardSession.java:1818)
at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1750)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at org.apache.catalina.session.StandardSession.deserialize(StandardSession.java:1063)
at org.apache.catalina.session.StandardManager.readSessions(StandardManager.java:511)
at com.sun.enterprise.web.WebModule.loadSessions(WebModule.java:1557)
at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1949)
at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1619)
at com.sun.enterprise.web.WebApplication.start(WebApplication.java:90)
at org.glassfish.internal.data.EngineRef.start(EngineRef.java:126)
at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:241)
at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:236)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:339)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:183)
at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:272)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:310)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:320)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1121)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$900(CommandRunnerImpl.java:83)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1235)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1224)
at org.glassfish.deployment.admin.ReDeployCommand.execute(ReDeployCommand.java:96)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:305)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:320)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1176)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$900(CommandRunnerImpl.java:83)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1235)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1224)
at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:365)
at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:204)
at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:166)
at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:100)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:245)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:619)
INFO: Loading application QIP1a.1 at /QIP1a.1
INFO: QIP1a.1 was successfully deployed in 10,993 milliseconds.

Any help/ideas would be appreciated. I've not been able to determine what is causing the null pointer exception that shows w/ redeployment...

Thanks in advance...

14 years ago

JSF

JSF2 CRUD DataTable and SelectOneListBox Questions

Hoping that someone can help me out with my problem:

I have a database that I use to track patients, surgeries, and any complications for purposes of self directed quality improvement. Patients table/entity has basic demographics on each patient and has a patient_id field that is linked, one to many to the Surgery table/entity. Surgery table/entity lists each surgical procedure performed, and has a patient_id field that has the Many to One annotation (thus bidirectional).

I used NetBeans 6.8 to create a basic CRUD web application (just selected the appropriate tables, created the entity classes, and then the JSF pages from entity classes, which created the session beans and the controller beans). Also, creates a list.xhtml page (among others) for each table/entity. On the Patients/List.xhtml page is a datatable that lists all patients. I would like to create a column that has a SelectOneListbox in it that shows any surgical procedures performed on that patient. Below is an excerpt from my patients/list.xhtml page:

<h:panelGroup rendered="#{patientsController.items.rowCount > 0}">

<h:dataTable value="#{patientsController.items}" var="item" border="0" cellpadding="2" cellspacing="0" rowClasses="jsfcrud_odd_row,jsfcrud_even_row" rules="all" style="border:solid 1px">

<h:column>
<f:facet name="header">
<h:outputText value="listbox"/>
</f:facet>
<h:selectOneListbox id="dd" value="#{item.surgeryList}" size="1">
<f:selectItems
value="#{item.surgeryList}" var="invoiceCPTID"
itemValue="#{surgeryList.invoiceCPTID}"
itemLabel="#{surgeryList.invoiceCPTID.toString()}">
</f:selectItems>
</h:selectOneListbox>
</h:column>

When I compile and run the web app, the index.xhtml page appears, allowing me to choose the patients page, which appears and shows the first 100 patients in my MySQL db. The SelectOneListboxes also are in the column appropriately, with or without surgeries listed (correctly so). Problem is when I click on any URL Link (e.g., Next 100, or Edit,or View, or Destroy the selected row). Then I get a page that has multiple entries like the following:

Conversion Error setting value 'ZZZZZ00DL5' for 'null Converter'.

'ZZZZZ00DL5' is a SurgeryID. There are multiple listings for each of the surgery-IDs that are on the page, followed by the same first 100 patients. I've searched for this error on the web, and the suggested answers do not work.

My questions are:
1.) How can I make this work so that I can proceed to next page
2.) Many patients in my database have not had surgery, thus their SelectOneListbox is empty. I've tried to set the render=#{item.surgeryList.rowsAvailable}" or render="#{item.surgeryList.rowCount > 0}", but these don't work.

Thanks for any and all advice.

14 years ago

JSF