Why class SecurityEvaluationContextExtension can not be found in Spring Boot Project?

Question

I have a spring boot based project with following declaration in pom.xml:

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.3.2.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

and following dependencies among others

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
</dependency>

But seems like spring boot is not pulling in SecurityEvaluationContextExtension class on the classpath.

Am I missing a dependency or am I using an older version of spring boot?

EDIT:

I directly added the following dependency in my pom.xml and now I can see the class, but STS is showing warning : "Duplicating managed version 4.0.3.RELEASE for spring-security-data"

    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-data</artifactId>
        <version>4.0.3.RELEASE</version>
    </dependency>       

Answer 1

I am not shure what you mean with 'spring is not pulling in..' But to use this extension you have to create a bean of this type see SecurityEvaluationContextExtension

EDIT : The warning you are getting is no problem. You can try removing the version from the dependency, because it seems available through dependencyManagement.