java.lang.ClassNotFoundException: org.springframework.expression.ParserContext Spring HelloWorld?

Ich habe ein einfaches Spring HelloWorld-Programm. Sein Inhalt ist wie folgt:

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.mahesha999.examples.spring</groupId>
    <artifactId>SpringExamples</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.3.2.RELEASE</version>
        </dependency>       
    </dependencies>

</project>

eg1.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">

    <bean id="helloBean" class="com.mahesha999.examples.spring.eg1.HelloWorld">
        <property name="name" value="Mahesha999" />
    </bean>

</beans>

HelloWorld.Java

public class HelloWorld {
    private String name;

    public void setName(String name) {
        this.name = name;
    }

    public void printHello() {
        System.out.println("Spring  : Hello ! " + name);
    }
}

App.Java

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class App {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("eg1.xml");

        HelloWorld obj = (HelloWorld) context.getBean("helloBean");
        obj.printHello();
    }
}

Dies gab mir folgenden Fehler:

INFO: Loading XML bean definitions from class path resource [eg1.xml]
Exception in thread "main" Java.lang.NoClassDefFoundError: org/springframework/expression/ParserContext
    at org.springframework.context.support.AbstractApplicationContext.prepareBeanFactory(AbstractApplicationContext.Java:628)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.Java:516)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.Java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.Java:83)
    at com.mahesha999.examples.spring.eg1.App.main(App.Java:8)
Caused by: Java.lang.ClassNotFoundException: org.springframework.expression.ParserContext
    at Java.net.URLClassLoader.findClass(URLClassLoader.Java:381)
    at Java.lang.ClassLoader.loadClass(ClassLoader.Java:424)
    at Sun.misc.Launcher$AppClassLoader.loadClass(Launcher.Java:331)
    at Java.lang.ClassLoader.loadClass(ClassLoader.Java:357)
    ... 5 more

Als ich in pom.xml die Frühlingsversion von 4.3.2 auf 4.2.2 geändert habe, hat es gut funktioniert. Wieso ist es so?