primefaces datatable rowEditor error - jsf-2

Question

I'm using JSF 2.2 and primefaces 4.0 with Mojarra 2.2.2 on a Tomcat server.
I'm using a p:datatable with a row editor, but whenever I try to edit a row I get the following error when press the "check" button to save the changes:
may 17, 2014 10:17:03 PM com.sun.faces.context.PartialViewContextImpl processPartial
Información: java.lang.NumberFormatException: null
java.lang.NumberFormatException: null
at java.lang.Integer.parseInt(Integer.java:454)
at java.lang.Integer.parseInt(Integer.java:527)
at org.primefaces.component.datatable.DataTable.queueEvent(DataTable.java:666)
at org.primefaces.behavior.ajax.AjaxBehaviorRenderer.decode(AjaxBehaviorRenderer.java:47)
at javax.faces.component.behavior.ClientBehaviorBase.decode(ClientBehaviorBase.java:132)
at org.primefaces.renderkit.CoreRenderer.decodeBehaviors(CoreRenderer.java:486)
at org.primefaces.component.datatable.DataTableRenderer.decode(DataTableRenderer.java:64)
at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:831)
at org.primefaces.component.api.UIData.processDecodes(UIData.java:246)
at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:550)
at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
at org.primefaces.component.api.UIData.visitTree(UIData.java:692)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIForm.visitTree(UIForm.java:371)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UINamingContainer.visitTree(UINamingContainer.java:174)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:399)
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:263)
at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:60)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:927)
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2430)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2419)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
may 17, 2014 10:17:03 PM com.sun.faces.lifecycle.ApplyRequestValuesPhase execute
Advertencia: java.lang.NumberFormatException: null
javax.faces.FacesException: java.lang.NumberFormatException: null
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:270)
at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:60)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:927)
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2430)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2419)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.NumberFormatException: null
at java.lang.Integer.parseInt(Integer.java:454)
at java.lang.Integer.parseInt(Integer.java:527)
at org.primefaces.component.datatable.DataTable.queueEvent(DataTable.java:666)
at org.primefaces.behavior.ajax.AjaxBehaviorRenderer.decode(AjaxBehaviorRenderer.java:47)
at javax.faces.component.behavior.ClientBehaviorBase.decode(ClientBehaviorBase.java:132)
at org.primefaces.renderkit.CoreRenderer.decodeBehaviors(CoreRenderer.java:486)
at org.primefaces.component.datatable.DataTableRenderer.decode(DataTableRenderer.java:64)
at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:831)
at org.primefaces.component.api.UIData.processDecodes(UIData.java:246)
at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:550)
at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
at org.primefaces.component.api.UIData.visitTree(UIData.java:692)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIForm.visitTree(UIForm.java:371)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UINamingContainer.visitTree(UINamingContainer.java:174)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:399)
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:263)
... 26 more
may 17, 2014 10:17:03 PM com.sun.faces.context.AjaxExceptionHandlerImpl handlePartialResponseError
Grave: java.lang.NumberFormatException: null
at java.lang.Integer.parseInt(Integer.java:454)
at java.lang.Integer.parseInt(Integer.java:527)
at org.primefaces.component.datatable.DataTable.queueEvent(DataTable.java:666)
at org.primefaces.behavior.ajax.AjaxBehaviorRenderer.decode(AjaxBehaviorRenderer.java:47)
at javax.faces.component.behavior.ClientBehaviorBase.decode(ClientBehaviorBase.java:132)
at org.primefaces.renderkit.CoreRenderer.decodeBehaviors(CoreRenderer.java:486)
at org.primefaces.component.datatable.DataTableRenderer.decode(DataTableRenderer.java:64)
at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:831)
at org.primefaces.component.api.UIData.processDecodes(UIData.java:246)
at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:550)
at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
at org.primefaces.component.api.UIData.visitTree(UIData.java:692)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIForm.visitTree(UIForm.java:371)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UINamingContainer.visitTree(UINamingContainer.java:174)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1740)
at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:399)
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:263)
at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:60)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:927)
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2430)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2419)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
this is the part of the xhtml page with the dataTable:
<p:dataTable id="nombreAsociados"
var="asociado"
value="#{nuevaInscripcionBacking.asociados}"
editable="true"
emptyMessage="Aún no ha agregado asociados">
<p:ajax event="rowEdit"
update=":#{cc.attrs.id}:formularioNewIns:distDerechosAsoc"
partialSubmit="true"/>
<p:column headerText="Rut">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{asociado.rut}" />
</f:facet>
<f:facet name="input">
<p:inputMask value="#{asociado.rut}" mask="99.999.999-*" style="width:100%"/>
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Nombres">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{asociado.nombre}" />
</f:facet>
<f:facet name="input">
<h:inputText value="#{asociado.nombre}" style="width:100%"/>
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Apellido Paterno">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{asociado.apellidoPaterno}"/>
</f:facet>
<f:facet name="input">
<h:inputText value="#{asociado.apellidoPaterno}" style="width:100%"/>
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Apellido Materno">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{asociado.apellidoMaterno}"/>
</f:facet>
<f:facet name="input">
<h:inputText value="#{asociado.apellidoMaterno}" style="width:100%"/>
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Rol Predio">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{asociado.rolPredio}" />
</f:facet>
<f:facet name="input">
<h:inputText value="#{asociado.rolPredio}" style="width:100%"/>
</f:facet>
</p:cellEditor>
</p:column>
<p:column style="width:6%" rendered="#{nuevaInscripcionBacking.ventana==1 || nuevaInscripcionBacking.ventana==3}">
<p:rowEditor />
</p:column>
<p:column style="width: 6%" rendered="#{nuevaInscripcionBacking.ventana==1 || nuevaInscripcionBacking.ventana==3}">
<p:commandLink id="eliminar"
oncomplete="PF('DialogRemoveAsoc').show()"
update=":#{cc.attrs.id}:formEliminarAsociado"
process="#this"
partialSubmit="true"
styleClass="ui-icon ui-icon-trash">
<f:setPropertyActionListener
value="#{asociado}"
target="#{nuevaInscripcionBacking.asociadoAEliminar}" />
</p:commandLink>
</p:column>
</p:dataTable>
The last column is to delete the row. It actually works fine.
In the code above, the list I use to iterate is of objects "Asociados", which is just a bean with it's corresponding getters and setters.
Any help would be appreciated, thanks in advance.