Edit row in PrimeFaces dataTable does not update object - jsf

Question

With a PrimeFaces dataTable I try to edit a row. But when I click on the 'Save Row' button, the old value is send to the bean.
I tried to copy the database object to a normal pojo, but still the old value is send to the bean.
I use PrimeFaces 12
XHTML:
<h:form id="form">
<p:growl id="msgs" showDetail="true"/>
<div class="container-fluid">
<h1><h:outputText value="#{txt['rider.title']}"/></h1>
<p:dataTable id="dt_riders" class="table table-striped" value="#{riderView.allRiders}"
var="rider" editable="true">
<p:ajax event="rowEdit" listener="#{riderView.onRowEdit}" update=":form:msgs"/>
<p:ajax event="rowEditCancel" listener="#{riderView.onRowCancel}" update=":form:msgs"/>
<p:column headerText="#{txt['rider.header.id']}">
<h:outputText value="#{rider.id}"/>
</p:column>
<p:column headerText="#{txt['rider.header.name']}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{rider.name}"/>
</f:facet>
<f:facet name="input">
<p:inputText id="nameInp" value="#{rider.name}"/>
</f:facet>
</p:cellEditor>
</p:column>
<!-- and a few more -->
<p:column>
<p:rowEditor editTitle="Edit Row" cancelTitle="Cancel Edit" saveTitle="Save Row"/>
</p:column>
</p:dataTable>
</div>
</h:form>
The bean:
#ViewScoped
#Named("riderView")
public class RiderView implements Serializable {
private final RiderEjb riderEjb;
private final SecurityOfficer securityOfficer;
public RiderView() {
this(null, null);
}
#Inject
public RiderView(RiderEjb riderEjb, SecurityOfficer securityOfficer) {
this.riderEjb = riderEjb;
this.securityOfficer = securityOfficer;
}
public List<Rider> getAllRiders() {
return riderEjb.findAll(securityOfficer.getTeam());
}
public void onRowEdit(RowEditEvent<Rider> event) {
FacesMessage msg = new FacesMessage("Rider Edited", String.valueOf(event.getObject().getName()));
FacesContext.getCurrentInstance().addMessage(null, msg);
riderEjb.addOrUpdate(event.getObject());
}
public void onRowCancel(RowEditEvent<Rider> event) {
FacesMessage msg = new FacesMessage("Edit Cancelled", String.valueOf(event.getObject().getName()));
FacesContext.getCurrentInstance().addMessage(null, msg);
}
}
The Java object (getters and setters are generated by Lombok):
#Entity
#Getter
#Setter
public class Rider extends AbstractEntity {
#Id
private Long id;
private String name;
private Double weight;
private String gpxNames;
}

Answer 1

The problem was the method getAllRiders(). That calls the bean to gather the riders from the database. I changed it to retrieve all those riders from the database in a new #PostConstruct init() method.
Thanks to Jasper de Vries, I used the primefaces-test to pinpoint the problem.