primefaces 3.3.1 datatable multiple selection is not working - jsf

Question

I'm using prime faces data table in my application where i have a checkbox column in datatable to select certain rows and send the values to back bean but it always passes null values ,could any one suggest what's wrong with my code
<p:dataTable id="tblStatusSearch" var="item"
selection="#{StatusAction.listBEeans}"
value="#{bondLocationStatusAction.listLocationEBeans}"
rowKey="#{item.LocationId}">
<p:column selectionMode="multiple"/>
BackBean :
private List<LocationEBean> listBEeans;
public List<LocationEBean> getListBEeans() {
return listBEeans;
}
public void setListBEeans(List<LocationEBean> listBEeans) {
this.listBEeans = listBEeans;
}
public void ReSend(){
listBEeans=new ArrayList<LocationEBean>();
System.out.println("listBEans:"+listBEeans);
msgProcBusServ.reSendMsg(listBEeans);
}
Errr Log
INFO: java.lang.NullPointerException
java.lang.NullPointerException
at java.lang.reflect.Array.newArray(Native Method)
at java.lang.reflect.Array.newInstance(Array.java:52)
at org.primefaces.component.datatable.DataHelper.decodeMultipleSelection(DataHelper.java:268)
at org.primefaces.component.datatable.DataHelper.decodeSelection(DataHelper.java:240)
at org.primefaces.component.datatable.DataTableRenderer.decode(DataTableRenderer.java:72)
at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:787)
at javax.faces.component.UIData.processDecodes(UIData.java:1162)
at org.primefaces.component.datatable.DataTable.processDecodes(DataTable.java:554)
at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:506)
at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
at javax.faces.component.UIData.visitTree(UIData.java:1411)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at javax.faces.component.UIForm.visitTree(UIForm.java:371)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:376)
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:252)
at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183)
at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183)
at org.openfaces.ajax.PartialViewContext.processPartial(PartialViewContext.java:131)
at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:931)
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:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:349)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:66

Answer 1

INMO selection should point to an array instead of array list
try to make listBEean an array like this
private LocationEBean[] listBEeans;
take a look at the showcase
DataTable - Multiple Row Selection