@ViewScoped is recreated after button action on WebLogic

Question

First of all I know some other similar questions about my title, but My issue is a little bit different... When I try to initialize LazyDataModel in my @ViewScoped Bean it works fine until I click the actionButton on my page. When My Bean is created, its @PostConstruct method works as expected and LazyDataModel filled up in that method then datatable populated well. But when ajax called by actionButton in my page then entire bean recreated and @PostConstruct method called again, with that LazyDataModel value changing to null. Because of that, my page is crashing. In another scenario I was using rowSelect event in my datatable instead of actionButton with method which has a SelectEvent parameter. In SelectEvent parameter object field of it was null and I was getting NullPointerException. These are the scenarios... As result I guess when I use LazyDataModel in my @ViewScoped bean It calls PostConstruct again and my datamodel returns null for my SelectEvent method.

This is my ViewScoped PostConstruct method

@ManagedBean (name = "myEctrInboxBB")
@ViewScoped
public class MyEContractInboxBackingBean implements Serializable {

private static final long serialVersionUID = 2399679621562918360L;

private static final Logger logger = LogManager.getLogger(MyEContractInboxBackingBean.class);

@ManagedProperty("#{ectrDomainService}")
EContractDomainService ectrDomainService;

@ManagedProperty("#{eContractUtil}")
EContractUtilBean eContractUtil;

@ManagedProperty("#{ectrApproveController}")
EContractApproveControllerBean ectrApproveController;

private EContractInboxItem selectedInboxRow;
private LazyEContractInboxItemModel lazyEcontractInboxItem;

private List<EContractInboxItem> inboxItems = new ArrayList<EContractInboxItem>();
private List<EContractInboxItem> filteredInboxItems = new ArrayList<EContractInboxItem>();

@PostConstruct
public void init() {

    User portalUser = getUser();
    List<String> userRoles = fetchUserRoles(portalUser);
    List<String> userSmCodes = fetchUserSmCodes(userRoles, portalUser);

    lazyEcontractInboxItem = new LazyEContractInboxItemModel(ectrDomainService, eContractUtil, userRoles, userSmCodes);


}

public void onRowSelect(SelectEvent selectEvent) {
    logger.info("**************************" + selectEvent);
}

public void openSelectedJob(EContractInboxItem item) {
ectrApproveController.openEContractInfoPage(item.getProcessInstanceId());
}

LazyDataModel

public class LazyEContractInboxItemModel extends LazyDataModel<EContractInboxItem>{

List<EContractInboxItem> inboxItems = new ArrayList<EContractInboxItem>();
List<Task> taskList = new ArrayList<Task>();

EContractDomainService ectrDomainService;
EContractUtilBean ectrUtilBean;

List<String> userRoles = new ArrayList<String>();
List<String> userSmCodes = new ArrayList<String>();

public LazyEContractInboxItemModel(EContractDomainService ectrDomainService, EContractUtilBean utilBean, List<String> roles,
        List<String> smCodes) {

    userRoles.addAll(roles);
    userSmCodes.addAll(smCodes);
    ectrUtilBean = utilBean;

    this.ectrDomainService = ectrDomainService;
}


public List<EContractInboxItem> getInboxItems() {
    return inboxItems;
}

public void setInboxItems(List<EContractInboxItem> inboxItems) {
    this.inboxItems = inboxItems;
}



@Override
public List<EContractInboxItem> load(int first, int pageSize, String sortField, SortOrder sortOrder,
        Map<String, Object> filters) {
    taskList = ectrDomainService.findTaskListAssignedToUserByUser(userRoles, userSmCodes);

    inboxItems.clear();

    inboxItems.addAll(ectrUtilBean.retrieveInboxItems(taskList));

    setRowCount(inboxItems.size());

    return inboxItems;
}


@Override
public List<EContractInboxItem> load(int first, int pageSize, List<SortMeta> multiSortMeta,
    Map<String, Object> filters) {
    taskList = ectrDomainService.findTaskListAssignedToUserByUser(userRoles, userSmCodes);

    inboxItems.clear();

    inboxItems.addAll(ectrUtilBean.retrieveInboxItems(taskList));

    setRowCount(inboxItems.size());

    return inboxItems;
}


@Override
public Object getRowKey(EContractInboxItem object) {
    return object.getProcessInstanceId();
}


@Override
public EContractInboxItem getRowData() {
    return super.getRowData();
}


@Override
public EContractInboxItem getRowData(String rowKey) {

    for (EContractInboxItem eContractInboxItem : inboxItems) {
        if (rowKey.equals(eContractInboxItem.getProcessInstanceId()))
            return eContractInboxItem;

    }
    return null;

}
getters and setters

xhtml page with actionButton

<?xml version="1.0"?>
<ui:composition
xmlns="http://www.w3.org/1999/xhtml"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:pe="http://primefaces.org/ui/extensions">

<h:form
    id="eContractWaitingApprovalForm"
    prependId="false"
    enctype="multipart/form-data">

    <p:messages id="topmsgForEcontractWaitingApproval" />

    <div class="ui-grid ui-grid-responsive">
            <p:dataTable
                id="waitingEcontracts"
                widgetVar="waitingEcontracts"
                styleClass="grid-sm-bottom"
                rows="20"
                resizableColumns="true"
                resizeMode="expand"
                paginator="true"
                lazy="true"
                paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
                rowsPerPageTemplate="5,10,15,50,100,200"
                value="#{myEctrInboxBB.lazyEcontractInboxItem}"
                var="item">

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agreement.no']}">
                    <h:outputText value="#{item.eContract.eContractCode}" />
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agreement.subject']}">
                    <h:outputText value="#{item.eContract.eContractSubject}" />
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agreement.date']}">
                    <h:outputText value="#{item.eContract.eContractDate}">
                        <f:convertDateTime
                            type="date"
                            pattern="dd-MM-yyyy" />
                    </h:outputText>
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agency.name']}">
                    <h:outputText value="#{item.agencyName}" />
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agency.type']}">
                    <h:outputText value="#{item.agencyType}" />
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agency.sales.manager']}">
                    <h:outputText
                        value="#{myEctrInboxBB.findSalesOfficeBySmCode(item.agencySM)}" />
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agreement.status']}">
                    <h:outputText
                        value="#{item.eContract.eContractStatus eq 'INPROGRESS' ? i18n['e-contract.dt.waiting.inprogress'] : item.eContract.eContractStatus}" />
                </p:column>

                <p:column styleClass="center-column">
                    <p:commandButton
                        process="@this"
                        icon="ui-icon-search"
                        value="#{i18n['e-contract.dt.waiting.see.detail']}"
                        action="#{myEctrInboxBB.openSelectedJob(item)}" />
                </p:column>

            </p:dataTable>

    </div>
</h:form>

xhtml page with rowSelect

<?xml version="1.0"?>
<ui:composition
xmlns="http://www.w3.org/1999/xhtml"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:pe="http://primefaces.org/ui/extensions">

<h:form
    id="eContractWaitingApprovalForm"
    prependId="false"
    enctype="multipart/form-data">

    <p:messages id="topmsgForEcontractWaitingApproval" />

    <div class="ui-grid ui-grid-responsive">
            <p:dataTable
                id="waitingEcontracts"
                widgetVar="waitingEcontracts"
                styleClass="grid-sm-bottom"
                rows="20"
                resizableColumns="true"
                resizeMode="expand"
                paginator="true"
                lazy="true"
                paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
                rowsPerPageTemplate="5,10,15,50,100,200"
                value="#{myEctrInboxBB.lazyEcontractInboxItem}"
                var="item"
                selection="#{myEctrInboxBB.selectedInboxRow}"
                selectionMode="single"
                rowKey="#{item.processInstanceId}">

                <p:ajax event="rowSelect" listener="#{myEctrInboxBB.onRowSelect}"/>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agreement.no']}">
                    <h:outputText value="#{item.eContract.eContractCode}" />
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agreement.subject']}">
                    <h:outputText value="#{item.eContract.eContractSubject}" />
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agreement.date']}">
                    <h:outputText value="#{item.eContract.eContractDate}">
                        <f:convertDateTime
                            type="date"
                            pattern="dd-MM-yyyy" />
                    </h:outputText>
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agency.name']}">
                    <h:outputText value="#{item.agencyName}" />
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agency.type']}">
                    <h:outputText value="#{item.agencyType}" />
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agency.sales.manager']}">
                    <h:outputText
                        value="#{myEctrInboxBB.findSalesOfficeBySmCode(item.agencySM)}" />
                </p:column>

                <p:column
                    styleClass="center-column"
                    headerText="#{i18n['e-contract.dt.waiting.agreement.status']}">
                    <h:outputText
                        value="#{item.eContract.eContractStatus eq 'INPROGRESS' ? i18n['e-contract.dt.waiting.inprogress'] : item.eContract.eContractStatus}" />
                </p:column>

            </p:dataTable>

    </div>
</h:form>

When I clicked a row of Datatable selectEvent.getObject() --> NULL always with LazyDataModel.

A big important information: These all situations happens in WebLogic 10.3.6.0 and works on TomCat like charm (even with LazyDataModel).

My Development environment: JSF 2.0, Primefaces 5.2, Liferay 6.2.3 ga4 with TomCat 7.04. Testing environment: Same all except WebLogic 10.3.6.0 (Problem only occurs on here)

I really appreciate if someone could help me... Thanks in advance!!!

EDIT:

@ManagedBean (name = "myEctrInboxBB")
@ViewScoped
public class MyEContractInboxBackingBean implements Serializable {

private static final long serialVersionUID = 2399679621562918360L;

private static final Logger logger = LogManager.getLogger(MyEContractInboxBackingBean.class);

@ManagedProperty("#{ectrDomainService}")
private transient EContractDomainService ectrDomainService;

@ManagedProperty("#{eContractUtil}")
private EContractUtilBean eContractUtil;

@ManagedProperty("#{ectrApproveController}")
private EContractApproveControllerBean ectrApproveController;

private EContractInboxItem selectedInboxRow;
private LazyEContractInboxItemModel lazyEcontractInboxItem;


@PostConstruct
public void init() {

    User portalUser = getUser();
    List<String> userRoles = fetchUserRoles(portalUser);
    List<String> userSmCodes = fetchUserSmCodes(userRoles, portalUser);

    lazyEcontractInboxItem = new LazyEContractInboxItemModel(userRoles, userSmCodes);
}

We can access Spring Beans like that:

    public EContractProcessService geteContractProcessService() {
    ELContext elContext = FacesContext.getCurrentInstance().getELContext();
    return (EContractProcessService) FacesContext.getCurrentInstance().getApplication()
        .getELResolver().getValue(elContext, null, "eContractProcessService");
}