DataTable RowSelect events throws null after filtering the column

[jkotak]

I am using PrimeFaces 6.0


Step 1: Passing parameters (p:inputText -usrID-String), p:selectOneList (some-ID), start Date, end date. Command button to pass the values to viewReport() method. ---> Working Good
Step2 : Parameters passed to API to collect data ---> Working good (Ex 300 rows)
Step3: p:dataTable populate ---> Working good before using filter (300 rows))
Step 4: Hit/select Row to populate some details : working good
Step 5: use Filter on any column --> working good Ex: returning 25 rows)
Step 6: Hit/select Row to populate some details : working good
Step 7: remove filter --> Working good (Old set of rows - 300 rows - populated in the data table)
Step 8: Hit/select Row to populate some details : working good
Issue start when:
Step 9: Chang search criteria (Step1) and hit the command button

--> Suppose API returns 100 ROWS but dtatatable is not refreshed and populated with new set of rows

XHTML:

<p:dataTable id="cdt1"
var="audit" value="#{asb.RecCarList}"
selectionMode="single"
selection="#{asb.selectedCar}"
rowKey="#{car.Id}"
rows="15"
paginator="true"
currentPageReportTemplate="Showing {startRecord}-{endRecord} out of {totalRecords}"
paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink}"
paginatorPosition="top">
<p:ajax event="rowSelect" listener="#{asb.onRowSelect}"
update=":conTabView2:avForm:msgs" />
<p:ajax event="rowUnselect" listener="#{asb.onRowUnselect}"
update=":conTabView2:avForm:msgs" />
<p:column filterBy="#{car.Id}" filterPosition="top" filterStyle="width: 100%; box-sizing: border-box;"
filterMatchMode="contains" headerText="Car Id" id="cc1"
sortBy="#{car.Id}" sortable="true" width="100">
<h:outputText id="cot1" value="#{car.Id}" />
</p:column>

RowSelect event is working fine but after using filter on any column it throws null pointer.


Logs::
javax.el.ELException: /pages/contents.xhtml @94,101 listener="#{asb.onRowSelect}": java.lang.NullPointerException
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:111)
at org.primefaces.behavior.ajax.AjaxBehaviorListenerImpl.processCustomArgListener(AjaxBehaviorListenerImpl.java:107)
at org.primefaces.behavior.ajax.AjaxBehaviorListenerImpl.processArgListener(AjaxBehaviorListenerImpl.java:82)
at org.primefaces.behavior.ajax.AjaxBehaviorListenerImpl.processAjaxBehavior(AjaxBehaviorListenerImpl.java:63)
at org.primefaces.event.AbstractAjaxBehaviorEvent.processListener(AbstractAjaxBehaviorEvent.java:38)
at javax.faces.component.behavior.BehaviorBase.broadcast(BehaviorBase.java:106)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:766)
at javax.faces.component.UIData.broadcast(UIData.java:1084)
at javax.faces.component.UIData.broadcast(UIData.java:1106)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:786)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1251)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:280)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:254)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:136)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:346)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3436)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3402)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2285)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2201)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1572)
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:255)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:311)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:263)
Caused By: java.lang.NullPointerException
at model.AuditSearchBean.onRowSelect(AuditSearchBean.java:380)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.el.parser.AstValue.invoke(AstValue.java:254)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
at org.primefaces.behavior.ajax.AjaxBehaviorListenerImpl.processCustomArgListener(AjaxBehaviorListenerImpl.java:107)
at org.primefaces.behavior.ajax.AjaxBehaviorListenerImpl.processArgListener(AjaxBehaviorListenerImpl.java:82)
at org.primefaces.behavior.ajax.AjaxBehaviorListenerImpl.processAjaxBehavior(AjaxBehaviorListenerImpl.java:63)
at org.primefaces.event.AbstractAjaxBehaviorEvent.processListener(AbstractAjaxBehaviorEvent.java:38)
at javax.faces.component.behavior.BehaviorBase.broadcast(BehaviorBase.java:106)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:766)
at javax.faces.component.UIData.broadcast(UIData.java:1084)
at javax.faces.component.UIData.broadcast(UIData.java:1106)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:786)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1251)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:280)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:254)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:136)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:346)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3436)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3402)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2285)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2201)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1572)
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:255)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:311)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:263)
>

Any suggestion appreciated.