spring - java.lang.ClassCastException: java.util.HashMap cannot be cast to ClassObject -

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i have problem <p:datatable> in primefaces, can not find error.

class usuarioasig:

public class usuarioasig {  private bigdecimal codigopersona; private string nombre; private string paterno; private string materno; private string login; private string observacion; private string tipocontrol; private string externo; private string habilitado; private string nombreperfil; private bigdecimal codigousuario;  ...get , set...}

class usuarioasiglistadatamodel: 

public class usuarioasiglistadatamodel  extends listdatamodel<usuarioasig> implements selectabledatamodel<usuarioasig> { public usuarioasiglistadatamodel(){} public usuarioasiglistadatamodel(list<usuarioasig> data){super(data);} @override public usuarioasig getrowdata(string rowkey) {     @suppresswarnings("unchecked")     list<usuarioasig> listausuarioasiglectura = (list<usuarioasig>) getwrappeddata();     (usuarioasig usuarioasig : listausuarioasiglectura) {         if (usuarioasig.getcodigopersona().equals(rowkey)) { return usuarioasig; }     }     return null; } @override public object getrowkey(usuarioasig usuarioasig) {     return usuarioasig.getcodigopersona(); }}

controller usuarioasigcontroller:

@controller("usuarioasigcontroller") @scope(value = "session") public class usuarioasigcontroller {      private list<usuarioasig> listausuarioasig;     private hashmap<string, object> selusuarioasig;     private usuarioasiglistadatamodel mediumusuarioasigmodel;     @autowired     usuarioservice usuarioservice;      ...      public list<usuarioasig> getlistausuarioasig() {         listausuarioasig = usuarioservice.selectasig();         return listausuarioasig;     }      public void setlistausuarioasig(list<usuarioasig> listausuarioasig) {         this.listausuarioasig = listausuarioasig;     }      public void setmediumusuarioasigmodel(usuarioasiglistadatamodel mediumusuarioasigmodel) {         this.mediumusuarioasigmodel = mediumusuarioasigmodel;     }      public usuarioasiglistadatamodel getmediumusuarioasigmodel() {         listausuarioasig = usuarioservice.selectasig();         mediumusuarioasigmodel = new usuarioasiglistadatamodel(listausuarioasig);         return mediumusuarioasigmodel;     }      public void onrowselect(selectevent event) {         facesmessage msg = new facesmessage("usuario seleccionado", ((usuarioasig) event.getobject()).getnombre());         facescontext.getcurrentinstance().addmessage(null, msg);     } }

the error generated when click on 1 of lines of datatable:

asiginst.xhtml:

<h:form id="form">     <p:growl id="msgs" showdetail="true" />      <p:datatable id="usuarioasiglistadatamodel" var="usuarioasig"         value="#{usuarioasigcontroller.mediumusuarioasigmodel}"         rowkey="#{usuarioasig.codigopersona}"         selection="#{usuarioasigcontroller.selusuarioasig}"         selectionmode="single" paginator="true" rows="10">         <p:ajax event="rowselect"             listener="#{usuarioasigcontroller.onrowselect}"             update=":form:msgs" />         <p:column headertext="código" style="width:10%">#{usuarioasig.codigopersona}</p:column>         <p:column headertext="nombre" style="width:32%">#{usuarioasig.nombre}</p:column>         <p:column headertext="apellidos" style="width:32%">#{usuarioasig.paterno} #{usuarioasig.materno}</p:column>         <p:column headertext="tipo control" style="width:20%">#{usuarioasig.tipocontrol}</p:column>         <p:column headertext="habilitado" style="width:6%">#{usuarioasig.habilitado}</p:column>     </p:datatable> </h:form>

the error generated:

warning: asiginst.xhtml @51,103 listener="#{usuarioasigcontroller.onrowselect}": java.lang.classcastexception: java.util.hashmap cannot cast com.datos.entidades.qry.usuarioasig javax.el.elexception: asiginst.xhtml @51,103 listener="#{usuarioasigcontroller.onrowselect}": java.lang.classcastexception: java.util.hashmap cannot cast com.datos.entidades.qry.usuarioasig     @ com.sun.faces.facelets.el.tagmethodexpression.invoke(tagmethodexpression.java:111)     @ org.primefaces.behavior.ajax.ajaxbehaviorlistenerimpl.processarglistener(ajaxbehaviorlistenerimpl.java:69)     @ org.primefaces.behavior.ajax.ajaxbehaviorlistenerimpl.processajaxbehavior(ajaxbehaviorlistenerimpl.java:56)     @ org.primefaces.event.selectevent.processlistener(selectevent.java:40)     @ javax.faces.component.behavior.behaviorbase.broadcast(behaviorbase.java:102)     @ javax.faces.component.uicomponentbase.broadcast(uicomponentbase.java:760)     @ javax.faces.component.uidata.broadcast(uidata.java:1071)     @ javax.faces.component.uidata.broadcast(uidata.java:1093)     @ javax.faces.component.uiviewroot.broadcastevents(uiviewroot.java:794)     @ javax.faces.component.uiviewroot.processapplication(uiviewroot.java:1259)     @ com.sun.faces.lifecycle.invokeapplicationphase.execute(invokeapplicationphase.java:81)     @ com.sun.faces.lifecycle.phase.dophase(phase.java:101)     @ com.sun.faces.lifecycle.lifecycleimpl.execute(lifecycleimpl.java:118)     @ javax.faces.webapp.facesservlet.service(facesservlet.java:409)     @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:305)     @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:210)     @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:225)     @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:169)     @ org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:472)     @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:168)     @ org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:98)     @ org.apache.catalina.valves.accesslogvalve.invoke(accesslogvalve.java:927)     @ org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:118)     @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:407)     @ org.apache.coyote.http11.abstracthttp11processor.process(abstracthttp11processor.java:999)     @ org.apache.coyote.abstractprotocol$abstractconnectionhandler.process(abstractprotocol.java:565)     @ org.apache.tomcat.util.net.jioendpoint$socketprocessor.run(jioendpoint.java:309)     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1110)     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:603)     @ java.lang.thread.run(thread.java:722) caused by: java.lang.classcastexception: java.util.hashmap cannot cast com.datos.entidades.qry.usuarioasig     @ com.controller.usuarioasigcontroller.onrowselect(usuarioasigcontroller.java:217)     @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)     @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.lang.reflect.method.invoke(method.java:601)     @ org.apache.el.parser.astvalue.invoke(astvalue.java:264)     @ org.apache.el.methodexpressionimpl.invoke(methodexpressionimpl.java:278)     @ com.sun.faces.facelets.el.tagmethodexpression.invoke(tagmethodexpression.java:105)     ... 29 more

i'm assuming hashmap<string, object> selusuarioasig selection.

then in method 

public void onrowselect(selectevent event) {     facesmessage msg = new facesmessage("usuario seleccionado", ((usuarioasig) event.getobject()).getnombre());     facescontext.getcurrentinstance().addmessage(null, msg); }

you attempting cast hashmap usuarioasig: ((usuarioasig) event.getobject())


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