Sling Models @Self @Via(type = ResourceSuperType.class) giving error

[SureshDhulipudi]

AEM 6.4

I am following the help article

https://helpx.adobe.com/experience-manager/using/extend_jave_corecomponents.html

I am getting error at line #27 (@Self @Via(type = ResourceSuperType.class)) in PageHeadline.java

Error: The attribute type is undefined for the annotation type Via

I verified, pom.xml for dependencies and sling model api, they are

        <dependency>

    <groupId>com.adobe.aem</groupId>

    <artifactId>uber-jar</artifactId>

    <version>6.4.0</version>

    <classifier>apis</classifier>

    <scope>provided</scope>

</dependency>

<dependency>

      <groupId>org.apache.geronimo.specs</groupId>

      <artifactId>geronimo-atinject_1.0_spec</artifactId>

      <version>1.0</version>

      <scope>provided</scope>

</dependency>

        <dependency>

            <groupId>org.apache.sling</groupId>

            <artifactId>org.apache.sling.models.api</artifactId>

        </dependency>

        <dependency>

---

        <dependency> 

        <artifactId>core.wcm.components.core</artifactId> 

        <version>2.1.0</version> 

        <groupId>com.adobe.cq</groupId> 

        <scope>provided</scope> 

        </dependency>