PrimeFaces LazyDataModel#load() method not invoked anymore after adding OmniFaces

Question

PrimeFaces LazyDataModel worked before adding OmniFaces jar into pom.xml. It invokes load() method of LazyDataModel.

LazyPostDataModel.java

public class LazyPostDataModel extends LazyDataModel<Post> {
    private PostService postService;
    private PostCriteria postCriteria;

    public LazyPostDataModel(PostService postService, PostCriteria postCriteria) {
        this.postCriteria = postCriteria;
        this.postService = postService;
    }

    @Override
    public List<Post> load(int first, int pageSize, String sortField, SortOrder sortOrder, Map<String,Object> filters) {
        //other process
    }
}

I just add the following dependency into pom.xml for OmniFaces. It does not invoke load() method .

<dependency>
    <groupId>org.omnifaces</groupId>
    <artifactId>omnifaces</artifactId>
    <version>2.2</version>
</dependency>

post.xhtml

<h:form id="postTableForm">
    <p:inputText value="#{ManagePostActionBean.postCriteria.name}"/>
    <p:commandButton value="Search" action="#{ManagePostActionBean.search}" update="postTable"/>
    <p:outputPanel id="listPanel">
        <p:dataTable var="post" value="#{ManagePostActionBean.postDataModel}" id="postTable"
            paginator="true" style="width:100%;" lazy="true"
            rows="10"
            paginatorTemplate="{CurrentPageReport}  {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
            rowsPerPageTemplate="10, 20, 30, 40, 50, 100" rowIndexVar="index">
            <p:column headerText="No" style="width:50px;">
                <h:outputText value="#{index + 1}" />
            </p:column>
            <p:column headerText="Name">
                <h:outputText value="#{post.name}" />
            </p:column>
            <p:column headerText="Description">
                <h:outputText value="#{post.description}" />
            </p:column>
        </p:dataTable>
    </p:outputPanel>
</h:form>   

ManagePostActionBean.java

@Named(value = "ManagePostActionBean")
@ViewScoped
public class ManagePostActionBean {
    @Inject
    private PostService postService;
    private LazyDataModel<Post> postDataModel;
    private PostCriteria postCriteria;

    public void onLoad() {
        System.out.println("ManagePostActionBean Init....");
        postCriteria = new PostCriteria();
        postDataModel = new LazyPostDataModel(postService, postCriteria);
    }

    public LazyDataModel<Post> getPostDataModel() {
        return postDataModel;
    }

    public PostCriteria getPostCriteria() {
        return postCriteria;
    }

    public void setPostCriteria(PostCriteria postCriteria) {
        this.postCriteria = postCriteria;
    }

    public void search() {
        resetPagination();
        postDataModel = new LazyPostDataModel(postService, postCriteria);
    }
}

my environment is

JSF 2.2
Primefaces 5.0
JDK 1.7
apache-tomee-webprofile-1.7.3 (TomEE)

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.mutu</groupId>
    <artifactId>spring-primefaces</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <repositories>
        <repository>
            <id>prime-repo</id>
            <name>PrimeFaces Maven Repository</name>
            <url>http://repository.primefaces.org</url>
            <layout>default</layout>
        </repository>
    </repositories> 
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>4.1.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>4.1.6.RELEASE</version>
        </dependency>       
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.1.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>4.1.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>4.1.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>4.1.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>4.1.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.3.0</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.2.3</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-maven-plugin</artifactId>
            <version>1.3.2</version>
        </dependency>       
        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-impl</artifactId>
            <version>2.2.8-02</version>
        </dependency>
        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-api</artifactId>
            <version>2.2.8-02</version>
        </dependency>
        <dependency>
            <groupId>org.primefaces</groupId>
            <artifactId>primefaces</artifactId>
            <version>5.0</version>
        </dependency>
        <dependency>
            <groupId>org.primefaces.themes</groupId>
            <artifactId>all-themes</artifactId>
            <version>1.0.10</version>
        </dependency>       
        <dependency>
            <groupId>org.primefaces.themes</groupId>
            <artifactId>green-cool</artifactId>
            <version>1.0</version>
        </dependency>       
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.4</version>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.4</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.8</version>
        </dependency>
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>2.8.1</version>
        </dependency>
        <dependency>  
            <groupId>com.zaxxer</groupId>  
            <artifactId>HikariCP</artifactId>  
            <version>2.4.1</version>  
        </dependency>
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.6.1</version>
        </dependency>       
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.0.1</version>
        </dependency>
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
            <version>2.2.1</version>
        </dependency>
        <dependency>
            <groupId>org.omnifaces</groupId>
            <artifactId>omnifaces</artifactId>
            <version>2.2</version>
        </dependency>
    </dependencies>
</project>

Answer 1

You're using TomEE 1.x, which ships with JSF 2.1 (Apache MyFaces).

OmniFaces 2.2 requires JSF 2.2.

You have 2 options:

1. Downgrade to OmniFaces 2.1. Even though OmniFaces 2.x officially requires JSF 2.2, OmniFaces versions 2.0 and 2.1 do not have deploy time JSF 2.2 dependencies. OmniFaces version 2.2 was with <o:viewAction> tag the first version to require JSF 2.2 during deploy time.

2. Upgrade to TomEE 7.x, the first version to implement Java EE 7 and thus inherently JSF 2.2. It's currently only available as M1 release. Final release is expected within months.